MedWorm.com provides a medical RSS filtering service. Over 6000 RSS medical sources are combined and output via different filters. This feed contains the latest items from the 'Journal of Neurosurgery.Spine' source. Tue, 07 Feb 2012 03:15:43 +0100 http://www.medworm.com/index.php?rid=5621954&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22243405%26dopt%3DAbstract Conclusions Extracranial reabsorption of CSF has been finally proved with direct radiological confirmation of spinal venous reabsorption of CSF using serial MR cisternography. The authors believe that this study can help to develop a more accurate model of CSF dynamics, which will allow understanding of many CSF-related diseases, as well as the development of new strategies for treatment. PMID: 22243405 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5621954 Fri, 13 Jan 2012 05:00:00 +0100 5621954 http://www.medworm.com/index.php?rid=5578361&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22225484%26dopt%3DAbstract Conclusions The diaphragm has multiple attachments that can be categorized as anterior, lateral, and posterior. In reference to the minimally invasive lateral extracoelomic approach to the thoracolumbar junction, the surgically significant attachments are primarily to the 12th rib and transverse process of L-1. PMID: 22225484 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5578361 Fri, 06 Jan 2012 05:00:00 +0100 5578361 http://www.medworm.com/index.php?rid=5578360&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22225485%26dopt%3DAbstract Authors: Linfante I, Capone FT, Dabus G, Gonzalez-Arias S, Lau PE, Samaniego EA Abstract Cutaneomeningospinal angiomatosis, or Cobb syndrome, is a rare metameric developmental disorder presenting as an extradural-intradural vascular malformation that involves bone, muscle, skin, spinal cord, and nerve roots. A 14-year-old girl with a red nevus involving the T6-9 dermatomes on the left side of her back presented with a 5-year history of bowel and bladder incontinence, paraplegia, and lower-extremity sensory loss. Magnetic resonance imaging demonstrated a hemangioma in the T-8 and T-9 vertebral bodies and a spinal cord AVM nidus extending from T-6 to T-9. The AVM was successfully embolized and the patient regained lower-extremity strength, ambulation, and normal sphincter functions ... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5578360 Fri, 06 Jan 2012 05:00:00 +0100 5578360 http://www.medworm.com/index.php?rid=5578359&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22225486%26dopt%3DAbstract This study describes persistent instability after vertebroplasty in a series of 5 cases. The authors propose that postvertebroplasty instability occurs due to collapse of soft osteoporotic bone and endplates around cement. All 3 cases of intervertebral instability were associated with an intradiscal cement leak. With increased longevity and higher functional demands of the geriatric population, the durability of this "rock (cement) between cushions (of osteoporotic bone)" arrangement (as seen in vertebroplasty) will be increasingly challenged. PMID: 22225486 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5578359 Fri, 06 Jan 2012 05:00:00 +0100 5578359 http://www.medworm.com/index.php?rid=5578358&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22225487%26dopt%3DAbstract This report reiterates that TOS is an important differential diagnosis for aneurysmal bone cyst and giant-cell tumor of the spine, as its biological behavior and clinical outcome differ from those of these more benign lesions, which it mimics. PMID: 22225487 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5578358 Fri, 06 Jan 2012 05:00:00 +0100 5578358 http://www.medworm.com/index.php?rid=5578357&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22225488%26dopt%3DAbstract Conclusions Stereotactic body radiotherapy is associated with a significant risk (20%) of VCF. Risk factors for VCF include an age > 55 years, a preexisting fracture, and baseline pain. These risk factors may aid in the selection of which spinal SBRT patients should be considered for prophylactic vertebral stabilization or augmentation procedures. Clinical trial registration no.: NCT00508443. PMID: 22225488 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5578357 Fri, 06 Jan 2012 05:00:00 +0100 5578357 http://www.medworm.com/index.php?rid=5578356&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22225489%26dopt%3DAbstract Conclusions Although each surgical technique of DBVD may have theoretical benefits and risks, no apparent difference in outcomes was observed between techniques. The concurrent use of both techniques was associated with increased blood loss and operative duration without any appreciable benefit. The surgeon should adopt the derotation technique with which he or she is most comfortable, but concurrent use of both does not appear to improve results. PMID: 22225489 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5578356 Fri, 06 Jan 2012 05:00:00 +0100 5578356 http://www.medworm.com/index.php?rid=5578355&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22225490%26dopt%3DAbstract Conclusions There does not appear to be a significant early biomechanical weakening of adjacent vertebrae caused by aforementioned technique of local bone harvest. PMID: 22225490 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5578355 Fri, 06 Jan 2012 05:00:00 +0100 5578355 http://www.medworm.com/index.php?rid=5560172&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22208429%26dopt%3DAbstract Conclusions OncoGel is safe for intramedullary injection in rats in doses up to 5 μl of 3.0 mg/ml, prolongs median survival, and increases functional motor scores in rats challenged with an intramedullary gliosarcoma at the doses tested. This study suggests that locally delivered chemotherapeutic agents could be of temporary benefit in the treatment of malignant IMSCTs under experimental settings. PMID: 22208429 [PubMed - in process] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5560172 Sun, 01 Jan 2012 05:00:00 +0100 5560172 http://www.medworm.com/index.php?rid=5550301&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22195606%26dopt%3DAbstract Authors: Fehlings MG, Fallah A PMID: 22195606 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5550301 Fri, 23 Dec 2011 05:00:00 +0100 5550301 http://www.medworm.com/index.php?rid=5550300&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22195607%26dopt%3DAbstract Conclusions This study has defined the clinical features of symptomatic intramedullary spinal cord CMs. Surgery is the mainstay treatment. Surgical outcome is associated with low mortality with a high probability of functional recovery, especially when symptoms are not severe and are of relatively recent onset. PMID: 22195607 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5550300 Fri, 23 Dec 2011 05:00:00 +0100 5550300 http://www.medworm.com/index.php?rid=5550299&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22195608%26dopt%3DAbstract Conclusions Both anterior cervical discectomy and fusion as well as arthroplasty demonstrate excellent 2-year surgical results for the treatment of 1-level cervical disc disease with radiculopathy. Arthroplasty is associated with a lower rate of secondary surgery and a higher rate of neurological success at 2 years. Arthroplasty may be associated with a lower rate of adjacent-level disease at 2 years, but further follow-up and analysis are needed to confirm this finding. PMID: 22195608 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5550299 Fri, 23 Dec 2011 05:00:00 +0100 5550299 http://www.medworm.com/index.php?rid=5550298&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22195609%26dopt%3DAbstract Conclusions The authors have established a novel animal model of spinal cord glioma using neurospheres derived from human GBM. When injected into the spinal cords of athymic nude rats, neurospheres gave rise to infiltrative, actively proliferating tumors that were histologically identical to spinal cord glioma in humans. On the basis of their results, the authors conclude that this is a reproducible animal model of high-grade spinal cord glioma based on a human GBM neurosphere line. This model represents an improvement over other models using nonhuman glioma cell lines. Novel therapeutic strategies can be readily evaluated using this model. PMID: 22195609 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5550298 Fri, 23 Dec 2011 05:00:00 +0100 5550298 http://www.medworm.com/index.php?rid=5550297&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22195610%26dopt%3DAbstract Authors: Hellbusch LC, Spangler WJ, Bowder A Abstract Anterior cervical discectomy and fusion (ACDF) is considered a standard neurosurgical treatment for cervical degenerative disc disease, but the methods for determining fusion after ACDF that involves the use of a polyetheretherketone (PEEK) cage are not well defined. The authors examine an image finding called "PEEK double lucency" that may be useful in identifying fusion. This finding was studied to determine if it would be helpful in identifying fusion on radiographs obtained in 148 patients who underwent an ACDF in which a PEEK cage was filled with local autograft bone (bone spurs in the present cases). The presence of a PEEK double lucency was discovered during review of the plain radiographs and defined as a complete radiol... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5550297 Fri, 23 Dec 2011 05:00:00 +0100 5550297 http://www.medworm.com/index.php?rid=5535072&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176426%26dopt%3DAbstract Conclusions Minimally invasive lateral interbody fusion is a safe and direct technique that is practical, especially when trying to avoid other approaches for hardware insertion, and it also avoids the complications associated with other types of instrumentation such as pedicle screws. Careful consideration during patient selection and during the operation will aid in the avoidance of complications. PMID: 22176426 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535072 Fri, 16 Dec 2011 05:00:00 +0100 5535072 http://www.medworm.com/index.php?rid=5535071&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176427%26dopt%3DAbstract Conclusions The authors' early experience with a large multicenter series suggested that the minimally invasive lateral approach is a safe, reproducible, and efficacious procedure for achieving adequate decompression in thoracic disc herniations in a less invasive manner than conventional surgical techniques and without the use of endoscopes. Symptom resolution was achieved at similar rates using this approach as compared with the most efficacious techniques in the literature, and with fewer complications in most circumstances. PMID: 22176427 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535071 Fri, 16 Dec 2011 05:00:00 +0100 5535071 http://www.medworm.com/index.php?rid=5535070&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176428%26dopt%3DAbstract Authors: Angevine PD, McCormick PC PMID: 22176428 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535070 Fri, 16 Dec 2011 05:00:00 +0100 5535070 http://www.medworm.com/index.php?rid=5535068&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176430%26dopt%3DAbstract Conclusions In the present study, misplacement of cervical PSs and associated complications occurred more often than in previous studies. The rates of screw-related neurovascular complications and neurological deterioration unrelated to PSs were high. Insertion of a PS for nontraumatic lesions is surgically more challenging than that for trauma; consequently, experienced surgeons should use PS fixation for nontraumatic cervical lesions only after thorough preoperative evaluation of each patient's cervical anatomy and after considering the risk factors specified in the present study. PMID: 22176430 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535068 Fri, 16 Dec 2011 05:00:00 +0100 5535068 http://www.medworm.com/index.php?rid=5535067&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176431%26dopt%3DAbstract Conclusions Ossification of the posterior longitudinal ligament progresses even after surgery. Three-dimensional evaluation with the aid of CT scans is a useful and reliable method for assessing that growth. PMID: 22176431 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535067 Fri, 16 Dec 2011 05:00:00 +0100 5535067 http://www.medworm.com/index.php?rid=5535066&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176432%26dopt%3DAbstract Authors: Grobelny BT, Rubin D, Fleischut P, Rubens E, Mack PF, Fink M, Placantonakis DG, Elowitz EH Abstract Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disorder characterized by heterotopic ossification of soft connective and muscle tissues, often as the result of minor trauma. The sequelae include joint fusion, accumulation of calcified foci within soft tissues, thoracic insufficiency syndrome, and progressive immobility. The authors report on a patient with FOP who developed severe spinal canal stenosis in the thoracic spine causing substantial myelopathy. He underwent a thoracic laminectomy and resection of a large posterior osteophyte. Unique considerations are required in treating patients with FOP, including steroid administration to prevent ossification an... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535066 Fri, 16 Dec 2011 05:00:00 +0100 5535066 http://www.medworm.com/index.php?rid=5535065&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176433%26dopt%3DAbstract Authors: Choudhry OJ, Christiano LD, Singh R, Golden BM, Liu JK Abstract Bone morphogenetic protein (BMP) has been reported to cause early inflammatory changes, ectopic bony formation, adjacent level fusion, radiculitis, and osteolysis. The authors describe the case of a patient who developed inflammatory fibroblastic cyst formation around the BMP sponge after a lumbar fusion, resulting in compressive lumbar radiculopathy. A 70-year-old woman presented with left L-4 and L-5 radiculopathy caused by a Grade I spondylolisthesis with a left herniated disc at L4-5. She underwent a minimally invasive transforaminal lumbar interbody fusion with BMP packed into the interbody cage at L4-5. Her neurological symptoms resolved immediately postoperatively. Six weeks later, the patient developed... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535065 Fri, 16 Dec 2011 05:00:00 +0100 5535065 http://www.medworm.com/index.php?rid=5535064&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176434%26dopt%3DAbstract Authors: Tu TH, Wu JC, Fay LY, Ko CC, Huang WC, Cheng H Abstract Cervical total disc replacement (TDR) is a viable option for the surgical treatment of degenerative disc disease. This 67-year-old nonsmoking male patient underwent single-level ProDisc-C cervical TDR at C5-6 without any intraoperative problem. His radicular pain improved and he had no neck pain immediately after the operation. However, on postoperative Day 3, a radiograph demonstrated a vertical split fracture of the C-5 vertebra. This fracture was managed conservatively, and 2 years postoperatively a follow-up CT scan demonstrated stable device position and fusion of the fracture. Although the linear fracture caused no neurological symptoms or device migration, the authors advocate prudence in selection and installa... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535064 Fri, 16 Dec 2011 05:00:00 +0100 5535064 http://www.medworm.com/index.php?rid=5535063&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176435%26dopt%3DAbstract Authors: Shasby G PMID: 22176435 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535063 Fri, 16 Dec 2011 05:00:00 +0100 5535063 http://www.medworm.com/index.php?rid=5535062&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22176436%26dopt%3DAbstract Authors: Amin BY, Mummaneni PV PMID: 22176436 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535062 Fri, 16 Dec 2011 05:00:00 +0100 5535062 http://www.medworm.com/index.php?rid=5535075&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22150239%26dopt%3DAbstract Conclusions The unilateral lateral mass construct supplemented by an interspinous cable does reduce range of motion compared with an intact specimen, but is significantly inferior to a C4-6 bilateral lateral mass construct. When using a dorsal approach, the unilateral construct with a cable should only be considered in selected instances. PMID: 22150239 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535075 Fri, 09 Dec 2011 05:00:00 +0100 5535075 http://www.medworm.com/index.php?rid=5535074&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22150240%26dopt%3DAbstract Authors: Jiang J, Zhu Z, Qian B, Liu Z, Qiu Y Abstract Cervical myelomeningocele (MMC) is an uncommon congenital malformation of the spinal cord and accounts for a small proportion of neural tube defects. These lesions mostly occur in the dorsal part of the body. Only a single case of an anterior cervical MMC has been previously reported. The authors report a second case of anterior cervical MMC diagnosed when the patient began to experience symptoms of bilateral hand weakness in adulthood. In this patient, MR imaging of the cervical spine showed an anterior cervical MMC at the C6-7 level with hydrocephalus, thinning of the genu and trunk of the corpus callosum, maldevelopment of the cerebellar tonsils, and expansion of the fourth ventricle, posterior cranial fossa, and subarachnoi... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535074 Fri, 09 Dec 2011 05:00:00 +0100 5535074 http://www.medworm.com/index.php?rid=5535073&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22150241%26dopt%3DAbstract Authors: McCormick PC PMID: 22150241 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535073 Fri, 09 Dec 2011 05:00:00 +0100 5535073 http://www.medworm.com/index.php?rid=5535079&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22136389%26dopt%3DAbstract Conclusions This study has shown that the biomechanics at adjacent levels to a cervical spine fusion are altered and that there is increased adjacent-segment motion at the levels above and below, after a 2-level compared with a 1-level ACDF. PMID: 22136389 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535079 Fri, 02 Dec 2011 05:00:00 +0100 5535079 http://www.medworm.com/index.php?rid=5535078&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22136390%26dopt%3DAbstract Conclusions Clinical outcomes of single-level cervical arthroplasty for soft-disc herniation and spondylosis were similar 3 years after surgery. There was a significantly higher rate of HO formation in patients with spondylosis than in those with a soft-disc herniation. The mobility of the artificial disc is maintained, but the long-term effects of HO and its higher frequency in spondylotic cases warrant further investigation. PMID: 22136390 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535078 Fri, 02 Dec 2011 05:00:00 +0100 5535078 http://www.medworm.com/index.php?rid=5535077&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22136391%26dopt%3DAbstract Conclusions A computerized measurement of pelvic parameters may be a more reliable and efficacious approach than manual measurements. This benefit is more prominent in the unskilled observer, and adding this simple function to an image viewer may be recommended in future studies. PMID: 22136391 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535077 Fri, 02 Dec 2011 05:00:00 +0100 5535077 http://www.medworm.com/index.php?rid=5535076&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22136392%26dopt%3DAbstract Conclusions Both spinal accessory and intercostal nerves, accessible from a posterior approach in the prone position, can be successfully harvested and transferred to their respective targets in the cervical spinal cord and conus medullaris. As expected, the number of axons available to grow into the spinal cord diminishes distally along each nerve. To maximize axon "bandwidth" in nerve bypass procedures, the most proximal section of the nerve that can be transferred in a tension-free manner to a spinal level caudal to the level of injury should be implanted. This study supports the feasibility of SAN and intercostal nerve transfer as a means of treating SCI and may assist in the preoperative selection of candidates for future human clinical trials of cervical and thoracolumbar SCI bypass... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5535076 Fri, 02 Dec 2011 05:00:00 +0100 5535076 http://www.medworm.com/index.php?rid=5456326&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22117139%26dopt%3DAbstract Authors: Jo DJ, Seo EM, Kim KT, Kim SM, Lee SH Abstract Spondyloptosis is complete dislocation of the L-5 vertebral body on the sacrum anteriorly. Its optimal treatment is still controversial. In particular, choosing the optimal surgical technique is difficult in the osteoporotic elderly patient given the high incidence of instrumentation failure, pseudarthrosis, progressive slippage, and severe sagittal imbalance. The authors of this report used partial reduction and pedicular transvertebral screw fixation of the lumbosacral junction for the treatment of spondyloptosis in an osteoporotic elderly patient. PMID: 22117139 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5456326 Fri, 25 Nov 2011 05:00:00 +0100 5456326 http://www.medworm.com/index.php?rid=5456325&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22117140%26dopt%3DAbstract Authors: Ghiassi M, Ghiassi M, Kahn E, Tomycz L, Ayad M, Aaronson O Abstract The authors report on the case of a 24-year-old man who presented with back pain and radiculopathy due to epidural venous engorgement in the setting of a congenitally absent inferior vena cava. Despite initial improvement after steroid administration, the patient's health ultimately declined over a period of weeks, and signs and symptoms of cauda equina syndrome manifested. Lumbar decompression was performed and involved coagulation and resection of the compressive epidural veins. No complications occurred, and the patient made a full neurological recovery. PMID: 22117140 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5456325 Fri, 25 Nov 2011 05:00:00 +0100 5456325 http://www.medworm.com/index.php?rid=5456324&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22117141%26dopt%3DAbstract Authors: Lee SB, Lee TG, Yoo DS, Huh PW, Cho KS Abstract Extracorporeal shock wave lithotripsy (ESWL) is a well-established, safe, and effective therapeutic alternative to surgical treatment for urolithiasis. Complications of ESWL do occur in a small number of patients, and when they do, they typically involve the kidney. Formation of a spinal epidural hematoma is an extremely rare complication after ESWL for kidney stone removal. The authors present the case of a 61-year-old man in whom a large spinal epidural hematoma developed after ESWL. They discuss the possible pathogenic mechanism of such a complication. PMID: 22117141 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5456324 Fri, 25 Nov 2011 05:00:00 +0100 5456324 http://www.medworm.com/index.php?rid=5456323&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22117142%26dopt%3DAbstract Conclusions Surgical repair of the dural defect is effected by release and reduction of the spinal cord and insertion of dural substitute over the dural defect. Careful monitoring of the functional integrity of spinal cord long tracts during surgical manipulation of the cord can detect surgically induced impairment. The authors' documentation of acute loss of MEPs that correlated with reversible postoperative motor deficit substantiates the necessity of IOM including continuous monitoring of MEPs for the surgical treatment of TISCH. PMID: 22117142 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5456323 Fri, 25 Nov 2011 05:00:00 +0100 5456323 http://www.medworm.com/index.php?rid=5456322&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22117143%26dopt%3DAbstract Conclusions The wide range in all radiographic parameters for LDS confirms the heterogeneous nature of this condition and suggests that a grading system to subclassify LDS may be clinically useful. On flexion and extension radiographs, increased translational motion correlated with increased angular motion. Anterior osteophyte size was not found to be predictive of segmental stability. This data set should prove beneficial to those seeking to subcategorize LDS in the future. PMID: 22117143 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5456322 Fri, 25 Nov 2011 05:00:00 +0100 5456322 http://www.medworm.com/index.php?rid=5440004&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22098598%26dopt%3DAbstract Authors: Yonezawa I, Saito T, Nakahara D, Won J, Wada T, Kaneko K Abstract Primary synovial sarcoma originating from the cauda equina is extremely rare. Only one case, involving an 11-year-old girl, has been reported. The authors describe the case of a 23-year-old woman with a primary synovial sarcoma of the cauda equina. The patient visited a local hospital and described a 2-month history of low-back pain. She was referred to the authors' hospital for further evaluation. On physical examination, she had a straight-leg raising result of 70° bilaterally. Motor examination revealed Grade 4/5 strength in the bilateral extensor hallux longus muscles. There was normal sensation to light touch and vibration in the lower extremities. Sagittal Gd-enhanced T1-weighted MR imaging demonstra... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5440004 Fri, 18 Nov 2011 05:00:00 +0100 5440004 http://www.medworm.com/index.php?rid=5440003&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22098599%26dopt%3DAbstract Authors: González-Martínez E, Santamarta D, Lomas-García J, Ibáñez-Plágaro FJ, Fernández-Fernández JJ, Ariño TR, García-Cosamalón J Abstract Giant-cell granuloma is a benign and nonneoplastic lesion with an expansive and locally destructive behavior. It typically involves the mandible and the maxilla. Only 1 case arising from the odontoid process of the axis has been reported previously. The authors report on a 64-year-old man with a giant-cell granuloma of the axis. They review this uncommon entity, emphasizing the complexity of differentiating between this lesion and other giant-cell tumors. PMID: 22098599 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5440003 Fri, 18 Nov 2011 05:00:00 +0100 5440003 http://www.medworm.com/index.php?rid=5440002&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22098600%26dopt%3DAbstract Authors: Mamourian A PMID: 22098600 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5440002 Fri, 18 Nov 2011 05:00:00 +0100 5440002 http://www.medworm.com/index.php?rid=5421151&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22077469%26dopt%3DAbstract Authors: Amin BY, Mummaneni PV PMID: 22077469 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421151 Fri, 11 Nov 2011 05:00:00 +0100 5421151 http://www.medworm.com/index.php?rid=5421150&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22077470%26dopt%3DAbstract Conclusions In this cadaveric study, laminar decompression reduced ?IMP by approximately 15%?25%, while correction of the kyphotic deformity returned ?IMP to zero. This study helps explain the pathophysiology of myelopathy in kyphotic deformity and the failure of laminectomy alone for cervical and thoracic kyphotic deformities with myelopathy. In addition, the study emphasizes the need for correction of deformity during operative treatment of kyphotic deformity, the need for maintaining adequate intraoperative blood pressure during operative treatment, and the higher risk of spinal cord injury associated with operative treatment of kyphotic deformity. PMID: 22077470 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421150 Fri, 11 Nov 2011 05:00:00 +0100 5421150 http://www.medworm.com/index.php?rid=5421149&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22077471%26dopt%3DAbstract Authors: Hsu SW, Lee CH, Hueng DY PMID: 22077471 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421149 Fri, 11 Nov 2011 05:00:00 +0100 5421149 http://www.medworm.com/index.php?rid=5421148&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22077472%26dopt%3DAbstract Conclusions With the continuing increase in health care costs, it is our responsibility as providers to minimize expenses when possible. This should be accomplished without compromising the quality of care to patients. This study demonstrates that decompression and reconstruction for symptomatic cervical spine disease without IOM may reduce the cost of treatment without adversely impacting patient safety. PMID: 22077472 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421148 Fri, 11 Nov 2011 05:00:00 +0100 5421148 http://www.medworm.com/index.php?rid=5421147&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22077473%26dopt%3DAbstract Conclusions The authors' results showed that a Type D OALL had strong associations with preoperative severity of symptoms and surgical outcomes. These findings may allow surgeons to determine the severity of preoperative symptoms and the probable surgical outcomes from the OALL classifications. Moreover, surgery with instrumentation for Type D OALLs may produce better surgical outcomes. PMID: 22077473 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421147 Fri, 11 Nov 2011 05:00:00 +0100 5421147 http://www.medworm.com/index.php?rid=5421155&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22054637%26dopt%3DAbstract Conclusions In the authors' practice, revision decompression and extension of fusion provided a significant gain in health state utility for patients with symptomatic ASD, with a 2-year cost per QALY gained of $62,995. When indicated, revision surgery for ASD is a valuable treatment option for patients experiencing back and leg pain secondary to ASD. The findings provide a value measure of surgery that can be compared with future cost-per-QALY-gained studies of medical management or alternative surgical approaches. PMID: 22054637 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421155 Fri, 04 Nov 2011 04:00:00 +0100 5421155 http://www.medworm.com/index.php?rid=5421154&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22054638%26dopt%3DAbstract Conclusions The aforementioned technique for intraoperative localization is safe, efficient, and accurate for identifying the target level in thoracic spine exposures. The fiducial marker screw can be placed using CT guidance on an outpatient basis. There is a reduction in the amount of intraoperative fluoroscopy time needed for localization in the fiducial screw group. PMID: 22054638 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421154 Fri, 04 Nov 2011 04:00:00 +0100 5421154 http://www.medworm.com/index.php?rid=5421153&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22054639%26dopt%3DAbstract Conclusions In the authors' practice, revision decompression and fusion provided a significant gain in health state utility for patients with symptomatic same-level recurrent stenosis, with a 2-year cost per QALY gained of $58,846. When indicated, revision surgery for same-level recurrent stenosis is a valuable treatment option for patients experiencing back and leg pain secondary to this disease. The authors' findings provide a value measure of surgery that can be compared with the results of future cost-per-QALY-gained studies of medical management or alternative surgical approaches. PMID: 22054639 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421153 Fri, 04 Nov 2011 04:00:00 +0100 5421153 http://www.medworm.com/index.php?rid=5421152&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22054640%26dopt%3DAbstract Authors: Stone JL, Song JK, Fino J PMID: 22054640 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5421152 Fri, 04 Nov 2011 04:00:00 +0100 5421152 http://www.medworm.com/index.php?rid=5379806&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22044386%26dopt%3DAbstract Authors: Lalwani S, Mathur P, Jain N, Behera B, Misra MC PMID: 22044386 [PubMed - in process] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379806 Tue, 01 Nov 2011 04:00:00 +0100 5379806 http://www.medworm.com/index.php?rid=5379810&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22035100%26dopt%3DAbstract Authors: Traynelis VC PMID: 22035100 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379810 Fri, 28 Oct 2011 04:00:00 +0100 5379810 http://www.medworm.com/index.php?rid=5379809&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22035101%26dopt%3DAbstract Conclusions Comorbidities significantly increase the risk of perioperative complications. An increasing number of comorbidities in an individual patient significantly increases the risk of a perioperative adverse event. Patient factors significantly impact the relative risk of HACs and perioperative complications. PMID: 22035101 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379809 Fri, 28 Oct 2011 04:00:00 +0100 5379809 http://www.medworm.com/index.php?rid=5379808&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22035102%26dopt%3DAbstract Conclusions OncoGel is safe for intramedullary injection in rats in doses up to 5 μl of 3.0 mg/ml, prolongs median survival, and increases functional motor scores in rats challenged with an intramedullary gliosarcoma at the doses tested. This study suggests that locally delivered chemotherapeutic agents could be of temporary benefit in the treatment of malignant IMSCTs under experimental settings. PMID: 22035102 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379808 Fri, 28 Oct 2011 04:00:00 +0100 5379808 http://www.medworm.com/index.php?rid=5379807&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22035103%26dopt%3DAbstract Conclusions Long-term follow-up data in our veteran population support cervical corpectomy as an effective, long-lasting treatment for spondylotic myelopathy of the cervical spine. Use of CTMCs without end caps was associated with statistically significant increased postoperative kyphotic angulation and chronic pain. Despite an increase in focal kyphosis over time, regional cervical sagittal lordotic alignment had increased at the latest follow-up. Further investigation will include the association of chronic neck pain and postoperative kyphosis, and high fusion rates among a veteran population of heavy smokers. PMID: 22035103 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379807 Fri, 28 Oct 2011 04:00:00 +0100 5379807 http://www.medworm.com/index.php?rid=5379812&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22017257%26dopt%3DAbstract Authors: Aras Y, Akcakaya MO, Unal SN, Bilgic B, Unal OF Abstract Imatinib mesylate has become the treatment of choice for gastrointestinal stromal tumors (GISTs) and has made a revolutionary impact on survival rates. Bone marrow necrosis is a very rare adverse event in malignant GIST. Bone metastases are also rarely encountered in the setting of this disease. The authors report on a patient with malignant GIST who developed a bone lesion, mimicking spinal metastasis on both MR imaging and FDG-PET/CT. Corpectomy and anterior fusion was performed, but the pathology report was consistent with bone marrow necrosis. Radiological and clinical similarities made the distinction between metastasis and bone marrow necrosis challenging for the treating physicians. Instead of radical surgical... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379812 Fri, 21 Oct 2011 04:00:00 +0100 5379812 http://www.medworm.com/index.php?rid=5379811&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D22017258%26dopt%3DAbstract Authors: Shasby G PMID: 22017258 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379811 Fri, 21 Oct 2011 04:00:00 +0100 5379811 http://www.medworm.com/index.php?rid=5379814&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21999389%26dopt%3DAbstract Conclusions Transforaminal lumbar interbody fusion has gained widespread popularity as a procedure for achieving arthrodesis in the lumbar spine. Complications occurred more often in patients undergoing revision surgery or multilevel interbody fusion. Durotomy and infection were the most common complications in this series. PMID: 21999389 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379814 Fri, 14 Oct 2011 04:00:00 +0100 5379814 http://www.medworm.com/index.php?rid=5379813&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21999390%26dopt%3DAbstract Conclusions The overall incidence of HO after cervical TDR was relatively high. Moreover, HO began unexpectedly to appear early after surgery. Heterotopic ossification progression was proportional to the time that had elapsed postoperatively. Grade III or IV HO can restrict the cervical ROM and may lead to spontaneous fusion; however, the occurrence of HO did not affect clinical outcome. The results of this study indicate that a high incidence of HO with the possibility of spontaneous fusion is to be expected during long-term follow-up and should be considered before performing cervical TDR. PMID: 21999390 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379813 Fri, 14 Oct 2011 04:00:00 +0100 5379813 http://www.medworm.com/index.php?rid=5379818&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21981271%26dopt%3DAbstract Authors: Felasi MA, Venail F, Lonjon N Abstract The authors describe the case of a 29-year-old man presenting with left retrooccipital and cervical pain associated with left ear fullness and rhythmic tinnitus. Head rotation movements on the right side and the Valsalva maneuver increased symptoms. A CT scan identified hyperpneumatization of the left temporal bone extending to the occipital bone as well as pneumarthrosis of the atlantoaxial joint. Surgical treatment involving obliteration of the fistula with bone and fat grafts via a computer-aided transmastoid approach was proposed. The surgery resolved all of the patient's symptoms except for the ear fullness. In this case the authors described an original treatment for spontaneous atlantoaxial pneumarthrosis. Long-term follow-up i... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379818 Fri, 07 Oct 2011 04:00:00 +0100 5379818 http://www.medworm.com/index.php?rid=5379817&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21981272%26dopt%3DAbstract Conclusions This is the first reported surgical series of patients with an unknown source of spinal metastases. The authors found that multiple sites of spinal disease did not influence survival; however, the presence of extraspinal disease had a negative impact. The extent of resection had no effect on survival duration or local recurrence. With an overall median survival of 8.1 months following surgery, aggressive evaluation and treatment of patients with metastatic disease of the spine from an unknown primary source is warranted. PMID: 21981272 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379817 Fri, 07 Oct 2011 04:00:00 +0100 5379817 http://www.medworm.com/index.php?rid=5379816&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21981273%26dopt%3DAbstract Conclusions The proposed surgical technique is technically feasible. Nevertheless, it should be an option reserved for selected patients for whom the surgical complexity can be justified by the characteristics of their malignancy and expected curative outcome. PMID: 21981273 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379816 Fri, 07 Oct 2011 04:00:00 +0100 5379816 http://www.medworm.com/index.php?rid=5379815&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21981274%26dopt%3DAbstract Conclusions The tolerance rate of mild CSM was 70% in this study, which proved that the prognosis of mild CSM without surgical treatment was relatively good. However, the tolerance rate of the cases with angular-edged deformity was 58%. Therefore, surgical treatment should be considered when mild CSM cases show angular-edged deformity on axial MR imaging, even if patients lack significant symptoms. PMID: 21981274 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5379815 Fri, 07 Oct 2011 04:00:00 +0100 5379815 http://www.medworm.com/index.php?rid=5297558&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21962032%26dopt%3DAbstract Authors: König SA PMID: 21962032 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5297558 Fri, 30 Sep 2011 04:00:00 +0100 5297558 http://www.medworm.com/index.php?rid=5297557&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21962033%26dopt%3DAbstract Conclusions A positioning protocol using head suspension on an open radiolucent frame facilitates oncological sacral surgery with reasonable patient morbidity. Morbid obesity and procedure times in excess of 10 hours are risk factors for positioning-related complications. To the authors' knowledge, this is the first report of surgical positioning morbidity in this patient population. PMID: 21962033 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5297557 Fri, 30 Sep 2011 04:00:00 +0100 5297557 http://www.medworm.com/index.php?rid=5297556&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21962034%26dopt%3DAbstract Conclusions Adjacent-segment disease revision surgery-specific MCID is highly variable based on calculation technique. The MDC approach with HTI anchor appears to be most appropriate for calculation of MCID after revision lumbar fusion for ASD because it provided a threshold above the 95% CI of the unimproved cohort (greater than the measurement error), was closest to the mean change score reported by improved and satisfied patients, and was not significantly affected by choice of anchor. Based on this method, MCID following ASD revision lumbar surgery is 3.8 points for BP-VAS score, 2.4 points for LP-VAS score, 6.8 points for ODI, 8.8 points for SF-12 PCS, 9.3 points for SF-12 MCS, and 0.35 quality-adjusted life-years for EQ-5D. PMID: 21962034 [PubMed - as supplied by publisher] (Sou... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5297556 Fri, 30 Sep 2011 04:00:00 +0100 5297556 http://www.medworm.com/index.php?rid=5280533&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21943245%26dopt%3DAbstract Conclusions The spinopelvic alignment formulas were accurate when predicting unsuccessful outcomes but less reliable when predicting successful outcomes. The preoperative surgical plan should be altered if an unsuccessful result is predicted. However, even after obtaining a predicted successful outcome, surgeons should ensure that the predicted values are not too close to unsuccessful values and should identify other variables that may affect alignment. In the near future, it is anticipated that the use of these formulas will lead to better surgical planning and improved outcomes for patients with complex ASD. PMID: 21943245 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5280533 Fri, 23 Sep 2011 04:00:00 +0100 5280533 http://www.medworm.com/index.php?rid=5280532&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21943246%26dopt%3DAbstract In this report, a traumatic pseudomeningocele in a patient with spina bifida occulta that required surgical treatment is documented. This 37-year-old man presented to the authors' hospital with headache and a fluctuant mass in the center of his buttocks. A CT scan with myelography and MR imaging of the sacral region revealed a large subcutaneous area of fluid retention communicating with the intradural space through a defect of the S-2 lamina. Because 3 months of conservative treatment was unsuccessful, a free fat graft was placed with fibrin glue to seal the closure of the defect, followed by 1 week of CSF drainage. This is the first report on traumatic pseudomeningocele with spina bifida occulta successfully treated in this manner. PMID: 21943246 [PubMed - as supplied by publisher] (... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5280532 Fri, 23 Sep 2011 04:00:00 +0100 5280532 http://www.medworm.com/index.php?rid=5280531&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21943247%26dopt%3DAbstract Authors: Traynelis V PMID: 21943247 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5280531 Fri, 23 Sep 2011 04:00:00 +0100 5280531 http://www.medworm.com/index.php?rid=5247137&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21923235%26dopt%3DAbstract Authors: Cheng J, Kahn DE, Wang MY Abstract Guillain-Barré syndrome (GBS) is the eponym used to describe acute inflammatory polyradiculoneuropathies, which manifest with weakness and diminished reflexes. Although the classic form of GBS is considered to be an ascending demyelinating polyneuropathy, several variants have been described in the literature, including the Miller-Fisher syndrome, acute panautonomic neuropathy, acute motor axonal neuropathy, and acute motor-sensory axonal neuropathy (AMSAN). Few cases of postoperative GBS have been documented, particularly for the AMSAN variant. The authors describe the case of a patient who developed AMSAN after thoracic spine surgery and highlight the importance of investigating new-onset weakness in the postoperative period. PMID:... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5247137 Fri, 16 Sep 2011 04:00:00 +0100 5247137 http://www.medworm.com/index.php?rid=5247136&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21923236%26dopt%3DAbstract Conclusions Increased signal intensity on preoperative T2-weighted MR images was seen in more than 80% of the cases. However, only Type 2 ISI on T2-weighted images had a prognostic significance of being associated with a decreased likelihood of cure in patients with CSM or OPLL. Hypointensity on T1-weighted images predicted a lower probability of cure among patients with Type 2 ISI on T2-weighted images. PMID: 21923236 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5247136 Fri, 16 Sep 2011 04:00:00 +0100 5247136 http://www.medworm.com/index.php?rid=5247135&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21923237%26dopt%3DAbstract Authors: Moore TA, Steinmetz MP, Anderson PA Abstract Thoracolumbar fracture-dislocations are devastating injuries. They usually require surgical reduction and stabilization. The authors present a novel technique for reducing these injuries that is predictable and reproducible. PMID: 21923237 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5247135 Fri, 16 Sep 2011 04:00:00 +0100 5247135 http://www.medworm.com/index.php?rid=5247134&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21923238%26dopt%3DAbstract Authors: Bele K, Pendharkar HS, Venkat E, Gupta AK Abstract Anterior dural ectasia is an extremely rare finding in ankylosing spondylitis (AS). The authors describe a unique case of AS in which the patient presented with cauda equina syndrome as well as an unusual imaging finding of erosion of the posterior aspect of the L-1 (predominantly) and L-2 vertebral bodies due to anterior dural ectasia. Symptomatic patients with long-standing AS should be monitored for the presence of dural ectasia, which can be anterior in location, as is demonstrated in the present case. PMID: 21923238 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5247134 Fri, 16 Sep 2011 04:00:00 +0100 5247134 http://www.medworm.com/index.php?rid=5247133&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21923239%26dopt%3DAbstract Conclusions Impaction of the spacers within the articular cavity after facet distraction resulted in reversal of several effects of spine degeneration that had caused spinal and root canal stenosis. The safe, firm, and secure stabilization at the fulcrum of lumbar spinal movements provided a ground for segmental spinal arthrodesis. The immediate postoperative and lasting recovery from symptoms suggests the validity of the procedure. PMID: 21923239 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5247133 Fri, 16 Sep 2011 04:00:00 +0100 5247133 http://www.medworm.com/index.php?rid=5219094&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905769%26dopt%3DAbstract Conclusions Blood transfusion and hemoglobin decrease following lumbar microdiscectomy is exceptionally rare. Group and save and postoperative hemoglobin measurements are therefore nonessential in all patients undergoing lumbar microdiscectomy, with potentially significant cost savings from not performing these tests. PMID: 21905769 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219094 Fri, 09 Sep 2011 04:00:00 +0100 5219094 http://www.medworm.com/index.php?rid=5219093&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905770%26dopt%3DAbstract Authors: Guppy KH, Silverthorn JW, Akins PT Abstract Intrathecal spinal catheters (lumbar drains) are indicated for several medical and surgical conditions. In neurosurgical procedures, they are used to reduce intracranial and intrathecal pressures by diverting CSF. They have also been placed for therapeutic access to administer drugs, and more recently, vascular surgeons have used them to improve spinal cord perfusion during the treatment of thoracic aortic aneurysms. Insertion of these lumbar drains is not without attendant complications. One complication is the shearing of the distal end of the catheter with a resultant retained fragment. The authors report the case of a 65-year-old man who presented with a subarachnoid hemorrhage due to the migration of a retained lumbar drain ... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219093 Fri, 09 Sep 2011 04:00:00 +0100 5219093 http://www.medworm.com/index.php?rid=5219092&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905771%26dopt%3DAbstract Conclusions The study unambiguously demonstrated that 3DAC imaging is capable of assessing ascending tract degeneration in patients with CSM. Degeneration of an individual tract can be easily identified as a vector contrast change on the 3DAC image, a reflection of quantitative changes in anisotropism, similar to fractional anisotropy. Excellent correlation between Nurick grades and fasciculus gracilis degeneration suggests potential application of 3DAC imaging for tract-by-tract clinical correlation. PMID: 21905771 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219092 Fri, 09 Sep 2011 04:00:00 +0100 5219092 http://www.medworm.com/index.php?rid=5219091&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905772%26dopt%3DAbstract Conclusions To the authors' knowledge, this is the first reported case series in which 3D CG of spinal vascular malformations was used to provide simultaneous, stereoscopic visualization of the spinal vascular system, spinal cord, dura mater, and bone. The 3D CG method provides precise visual images for the diagnosis and treatment of these lesions. PMID: 21905772 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219091 Fri, 09 Sep 2011 04:00:00 +0100 5219091 http://www.medworm.com/index.php?rid=5219090&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905773%26dopt%3DAbstract Conclusions The results suggest that chordoma cells may be treated using the differentiation method in a more effective way than when they are treated with chemotherapeutic agents alone. This new approach may be an alternative method to conventional therapies in the treatment of chordoma. PMID: 21905773 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219090 Fri, 09 Sep 2011 04:00:00 +0100 5219090 http://www.medworm.com/index.php?rid=5219089&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905774%26dopt%3DAbstract Authors: Ellingson BM, Holly LT PMID: 21905774 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219089 Fri, 09 Sep 2011 04:00:00 +0100 5219089 http://www.medworm.com/index.php?rid=5219088&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905775%26dopt%3DAbstract Conclusions The relation of the V(2) segment of the VA to anterior procedures and lateral mass instrumentation at the subaxial cervical spine was reviewed in this study. A detailed anatomical knowledge of the V(2) segment of the VA combined with careful preoperative imaging is mandatory for safe cervical spine surgery. PMID: 21905775 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219088 Fri, 09 Sep 2011 04:00:00 +0100 5219088 http://www.medworm.com/index.php?rid=5219087&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21905776%26dopt%3DAbstract Conclusions All discs adequately maintained ROM at the surgical level. The greatest difference among the 3 devices was in the disc height and index angle measurements. PMID: 21905776 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219087 Fri, 09 Sep 2011 04:00:00 +0100 5219087 http://www.medworm.com/index.php?rid=5219098&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21888480%26dopt%3DAbstract Authors: Reynolds RM, Boswell E, Hulette CM, Cummings TJ, Haglund MM, Boswell E, Hulette CM, Cumm Ings TJ, Haglund MM Abstract In this paper the authors describe the rare disorder of diffuse leptomeningeal oligodendrogliomatosis in a patient with an oligodendroglioma of the cauda equina who died suddenly. Reviewing this uncommon pathological entity is important so that it can be recognized and treated appropriately. This young, otherwise healthy woman with initial symptoms of low-back pain had a mass lesion of the cauda equina. During a workup, profound refractory intracranial hypertension suddenly developed despite aggressive surgical and medical intervention. Autopsy revealed a spinal cord oligodendroglioma with diffuse leptomeningeal oligodendrogliomatosis of the brain and spina... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219098 Fri, 02 Sep 2011 04:00:00 +0100 5219098 http://www.medworm.com/index.php?rid=5219097&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21888481%26dopt%3DAbstract Conclusions Patients 75 years and older undergoing major spinal deformity surgery have an overall perioperative complication rate of 62%, with older age increasing the likelihood of a complication, and a long-term postoperative complication rate of 52%. Patients in this age group with a history of hypertension are 10 times more likely to incur a major perioperative complication. However, the mortality risk for these patients is not increased. PMID: 21888481 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219097 Fri, 02 Sep 2011 04:00:00 +0100 5219097 http://www.medworm.com/index.php?rid=5219096&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21888482%26dopt%3DAbstract Conclusions Based on the results, the authors suggest that these copolymers are feasible injectable scaffolds for cell grafting into the injured spinal cord and for delivery of therapeutic factors. PMID: 21888482 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219096 Fri, 02 Sep 2011 04:00:00 +0100 5219096 http://www.medworm.com/index.php?rid=5219095&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21888483%26dopt%3DAbstract Authors: Shasby G PMID: 21888483 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5219095 Fri, 02 Sep 2011 04:00:00 +0100 5219095 http://www.medworm.com/index.php?rid=5157403&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21854127%26dopt%3DAbstract Conclusions Astrocytes can be generated by serum treatment of NSS-generated cells derived from iPSCs. However, transplantation of such cells is poorly suited for repairing SCI. PMID: 21854127 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5157403 Thu, 18 Aug 2011 23:00:00 +0100 5157403 http://www.medworm.com/index.php?rid=5157402&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21854128%26dopt%3DAbstract Authors: Wilson TJ, Orringer DA, Sullivan SE, Patil PG Abstract Thoracic vertebral compression fractures are a known complication of generalized tetanus. The authors report the first known case of an L-2 burst fracture leading to cauda equina syndrome, as a result of generalized tetanus. This 51-year-old man had generalized tetanus with a constellation of symptoms including compartment syndrome requiring fasciotomies, severe axial spasms and spasms of the extremities, autonomic dysreflexia, hypercarbic respiratory failure, and rhabdomyolysis. During the course of his illness, areflexic paraparesis developed in his lower extremities. He was found to have an L-2 burst fracture with retropulsion of a bone fragment resulting in cauda equina syndrome. Operative intervention was undertak... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5157402 Thu, 18 Aug 2011 23:00:00 +0100 5157402 http://www.medworm.com/index.php?rid=5157401&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21854129%26dopt%3DAbstract Authors: Fehlings MG, Wilcox JT PMID: 21854129 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5157401 Thu, 18 Aug 2011 23:00:00 +0100 5157401 http://www.medworm.com/index.php?rid=5157400&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21854130%26dopt%3DAbstract Conclusions The acuteness of the inferior C-1 sagittal facet angles possibly determines the age at presentation and reducibility. The coronal angles determine the telescoping of C-2 within C-1. Patients with IrAAD can be treated using a posterior approach alone with the exception of those with extremely acute angles or a retroflexed dens. The exaggerated lordosis of the cervical spine in these patients is a compensatory phenomenon. PMID: 21854130 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5157400 Thu, 18 Aug 2011 23:00:00 +0100 5157400 http://www.medworm.com/index.php?rid=5141509&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21838512%26dopt%3DAbstract Authors: van den Brink W PMID: 21838512 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141509 Thu, 11 Aug 2011 23:00:00 +0100 5141509 http://www.medworm.com/index.php?rid=5141508&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21838513%26dopt%3DAbstract Authors: Kuraishi K, Hanakita J, Takahashi T, Minami M, Mori M, Watanabe M Abstract The authors report on an 81-year-old woman whose condition deteriorated 2 months after undergoing osteoplastic laminoplasty with placement of hydroxyapatite spacers. Magnetic resonance imaging showed postlaminectomy scar formation compressing the cervical spinal cord. The patient underwent laminectomy and removal of remarkably thick epidural scar tissue, which resulted in resolution of her symptoms. Histological diagnosis of the scar was fibrous granulation tissue with foreign body granuloma, characterized by multinucleated giant cells and marked increases of capillary vessels, fibroblasts, and collagen fibers. This case of symptomatic postlaminectomy scar formation after osteoplastic laminoplasty s... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141508 Thu, 11 Aug 2011 23:00:00 +0100 5141508 http://www.medworm.com/index.php?rid=5141515&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21819182%26dopt%3DAbstract Authors: Cho HL, Kim JS, Paeng SS, Lee SH Abstract A butterfly vertebra is a rare congenital anomaly that is usually asymptomatic. The authors, however, describe a novel case involving a butterfly vertebra overlapping with disc herniation that presented as radiculopathy. A butterfly vertebra is characterized by a symmetrical fusion defect resulting in a sagittal cleft vertebra. Only a few cases of butterfly vertebrae have been reported as incidental findings. This spinal anomaly may be associated with other congenital conditions such as Pfeiffer, Crouzon, Jarcho-Levin, and Alagille syndromes. Moreover, there is no previous report of a case associated with symptomatic disc herniation from the sagittal cleft. The authors excised the herniated disc fragment. They performed intraoperat... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141515 Thu, 04 Aug 2011 23:00:00 +0100 5141515 http://www.medworm.com/index.php?rid=5141514&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21819183%26dopt%3DAbstract Authors: Lalwani S, Mathur P, Jain N, Behera B, Misra MC PMID: 21819183 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141514 Thu, 04 Aug 2011 23:00:00 +0100 5141514 http://www.medworm.com/index.php?rid=5141513&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21819184%26dopt%3DAbstract Conclusions Patients who expected no pain postoperatively reported better scores on the nonstandardized outcome measure scales (VAS arm/neck, satisfaction with results), and higher SF-36 MCS scores. Higher preoperative MCS scores were related to better overall (standardized and nonstandardized) clinical outcomes (VAS neck, NDI, SF-36 PCS/MCS, and satisfaction with results). The results suggest that optimism in patients' expectations as well as mental well-being are related to improved clinical outcomes and higher patient satisfaction. PMID: 21819184 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141513 Thu, 04 Aug 2011 23:00:00 +0100 5141513 http://www.medworm.com/index.php?rid=5141512&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21819185%26dopt%3DAbstract Authors: Clarke MJ, Guzzo J, Wolinsky JP, Gokaslan Z, Black JH Abstract Iatrogenic aortic injuries are a potentially devastating complication of spine surgery. In instrumented cases, injuries may occur in the perioperative period due to iatrogenic vessel injury, or they may occur years later as prominent implants erode or penetrate major vessels. The authors present a case of a 71-year-old man in whom a thoracic pedicle screw was found perforating the thoracic aorta during routine follow-up 6 months after surgery. Due to the risk of future complications, the screw was removed while simultaneously delivering an endovascular aortic stent to gain vascular control. Surgical considerations and potential technical limitations are discussed. PMID: 21819185 [PubMed - as supplied by pub... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141512 Thu, 04 Aug 2011 23:00:00 +0100 5141512 http://www.medworm.com/index.php?rid=5141511&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21819186%26dopt%3DAbstract Conclusions The authors classified the 3 potential zones of injury that can be affected during an anterolateral approach to the thoracolumbar junction. Modifications to the operative technique are suggested to avoid the complication of flank bulge. The most significant intercostal nerve contributions to the anterolateral abdominal wall arise from T11 and T12. PMID: 21819186 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141511 Thu, 04 Aug 2011 23:00:00 +0100 5141511 http://www.medworm.com/index.php?rid=5141510&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21819187%26dopt%3DAbstract Authors: Petit D, Menei P, Fournier HD Abstract The authors describe the first case of spindle cell lipoma of the posterior neck invading the upper cervical spinal canal and the posterior cranial fossa. Spindle cell lipoma is an extremely rare variant of benign lipoma. It usually occurs as a solitary subcutaneous well-circumscribed lesion in the posterior neck or shoulders of adult men. Local aggressiveness is unusual. This 61-year-old man presented with an increased left cerebellar syndrome and headaches. He also had a posterior neck tumefaction, which had been known about for a long time. Computed tomography and MR imaging studies revealed a voluminous mass extending to the upper cervical canal and posterior cranial fossa and eroding the neighboring bones. The lesion was well del... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5141510 Thu, 04 Aug 2011 23:00:00 +0100 5141510 http://www.medworm.com/index.php?rid=5103648&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21800954%26dopt%3DAbstract Conclusions The current description of the different types of spinal extradural AVFs can help in understanding their pathophysiology and guide management. DynaCT was found to be useful in understanding the complex anatomy of these lesions. Endovascular treatment with Onyx is a good alternative for spinal extradural AVF management. PMID: 21800954 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103648 Thu, 28 Jul 2011 23:00:00 +0100 5103648 http://www.medworm.com/index.php?rid=5103647&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21800955%26dopt%3DAbstract Conclusions The sagittal profile of the thoracic spine is related to that of the cervical spine. The surgical treatment of Lenke Type 1 and 2 curves by using all pedicle screw constructs has a significant hypokyphotic effect on thoracic sagittal plane alignment (19 [86%] of 22 patients). If postoperative thoracic kyphosis is excessively decreased (mean 25.6°, p < 0.05), the cervical spine may decompensate into significant kyphosis. PMID: 21800955 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103647 Thu, 28 Jul 2011 23:00:00 +0100 5103647 http://www.medworm.com/index.php?rid=5103646&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21800956%26dopt%3DAbstract Conclusions Preliminary results, especially in terms of safety, seem to be promising, paving the way for future cell therapy trials. PMID: 21800956 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103646 Thu, 28 Jul 2011 23:00:00 +0100 5103646 http://www.medworm.com/index.php?rid=5103645&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21800957%26dopt%3DAbstract Authors: Ellis JA, Leung R, Winfree CJ Implanted intrathecal drug delivery systems may malfunction as a result of fracture of the intrathecal catheter. A suspected catheter fracture not seen on plain radiographs of the catheter system will typically prompt a contrast-enhanced imaging study of the pump. Injection of iodinated contrast medium into the pump system with routine fluoroscopy can sometimes fail to reveal subtle leaks. The authors present a case demonstrating the utility of high-resolution, 3D-CT for intrathecal pump-catheter system interrogation when routine fluoroscopy is unrevealing. In this case, a catheter leak was suspected on the basis of the patient's history, but no obvious fracture was noted on plain radiographs. An intraoperative fluoroscopic study that included mul... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103645 Thu, 28 Jul 2011 23:00:00 +0100 5103645 http://www.medworm.com/index.php?rid=5103644&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21800958%26dopt%3DAbstract Authors: Rao AJ, Gultekin SH, Neuwelt EA, Cintrón-Colón HR, Ragel BT Esthesioneuroblastoma is an aggressive neuroectodermal tumor that originates from the olfactory mucosa and often recurs locally. Distant metastasis of esthesioneuroblastoma has been described, but there are few reports of drop metastasis to the spinal cord. Here, we report a case of multiple drop metastases to the cervical, thoracic, and lumbar regions of the spinal cord that occurred 18 years after resection and radiotherapy of the original anterior cranial fossa lesion. There was no evidence of local recurrence. The symptomatic lesion was treated with resection and adjuvant chemotherapy. The options available for treatment of this disease are summarized with a review of the few reported cases of spinal metastasis ... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103644 Thu, 28 Jul 2011 23:00:00 +0100 5103644 http://www.medworm.com/index.php?rid=5103651&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21780861%26dopt%3DAbstract Conclusions The findings of this study demonstrated that the progression of DLS was affected by the relationship between the intercrest line and the L-5 vertebra. When L-5 was deep seated, progression of DLS was found. Asymmetrical change in the disc space above and below the L-3 or apical vertebra may also be an important predictor of curve progression. PMID: 21780861 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103651 Thu, 21 Jul 2011 23:00:00 +0100 5103651 http://www.medworm.com/index.php?rid=5103650&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21780862%26dopt%3DAbstract Conclusions Lumbar TDR maintained adjacent-level IDPs and facet force pressures near the values for intact spines, whereas adjacent-level IDPs tended to increase after discectomy or fusion and facet forces tended to increase after fusion. PMID: 21780862 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103650 Thu, 21 Jul 2011 23:00:00 +0100 5103650 http://www.medworm.com/index.php?rid=5103649&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21780863%26dopt%3DAbstract Authors: Lam FC, Groff MW Surgical pathology in the region of the upper thoracic spine (T1-4) is uncommon compared with other regions of the spine. Often times posterior and posterolateral approaches can be used, but formal anterior decompression often requires a low anterior cervical approach combined with a sternotomy, which yields significant perioperative morbidity. The authors describe a modified low anterior cervical dissection combined with a partial manubriotomy that they have used to successfully access and decompress anterior pathology of the upper thoracic spine. Their modified approach spares the sternoclavicular joints and leaves the sternum intact, decreasing the morbidity associated with these added procedures. PMID: 21780863 [PubMed - as supplied by publisher] (Sour... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5103649 Thu, 21 Jul 2011 23:00:00 +0100 5103649 http://www.medworm.com/index.php?rid=5057570&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21761963%26dopt%3DAbstract Authors: Longstreth WT, Cohen W, Reay DT PMID: 21761963 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057570 Thu, 14 Jul 2011 23:00:00 +0100 5057570 http://www.medworm.com/index.php?rid=5057569&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21761964%26dopt%3DAbstract Authors: Shasby G PMID: 21761964 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057569 Thu, 14 Jul 2011 23:00:00 +0100 5057569 http://www.medworm.com/index.php?rid=5057568&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21761965%26dopt%3DAbstract Conclusions The authors found that 3D-VG TIPS worked on a consumer-class computer and easily visualized the ideal entry point and trajectory of PSs in any operating theater without costly special equipment. This new technique is suitable for preoperative planning and intraoperative guidance when performing reconstructive surgery with PSs. PMID: 21761965 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057568 Thu, 14 Jul 2011 23:00:00 +0100 5057568 http://www.medworm.com/index.php?rid=5057567&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21761966%26dopt%3DAbstract Conclusions The use of a femoral nerve motor branch to the vastus medialis muscle for heterotopic nerve transfer to the pudendal nerve is surgically feasible, based on anatomical location and cross-sectional areas. PMID: 21761966 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057567 Thu, 14 Jul 2011 23:00:00 +0100 5057567 http://www.medworm.com/index.php?rid=5057566&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21761967%26dopt%3DAbstract Conclusions The O-arm offers high-resolution 2D or 3D images, facilitates accurate and safe CPS insertion with high-quality navigation, and provides other substantial benefits for cervical spinal instrumentation. Even with current optimized technology, however, CPS perforation cannot be completely prevented, with 8.3% instances of minor violations, which do not cause significant complications, and 2.8% instances of major pedicle violations, which may cause catastrophic complications. Therefore, a combination of intraoperative 3D image-based navigation with other techniques may result in more accurate CPS placement. PMID: 21761967 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057566 Thu, 14 Jul 2011 23:00:00 +0100 5057566 http://www.medworm.com/index.php?rid=5057577&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21740124%26dopt%3DAbstract Conclusions An increasing trend of hospitalizations, surgical treatment, and charges associated with lumbar spine fractures was observed between 2003 and 2007 on a national level. This trend, however, does not appear to be as steep as that of surgical utilization in degenerative spine disease. Furthermore, the ratio of spinal fusions to hospitalizations for lumbar fractures appears to be stable, possibly indicating no significant changes in indications for surgical intervention over the time period studied. PMID: 21740124 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057577 Thu, 07 Jul 2011 23:00:00 +0100 5057577 http://www.medworm.com/index.php?rid=5057576&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21740125%26dopt%3DAbstract Authors: Miele WR, Pfannl R, Kryzanski JT The authors present a case of extensive primary intramedullary spinal CNS ganglioneuroblastoma (GNB) in a 23-year-old man. Central nervous system GNB is a poorly differentiated neuroepithelial tumor composed of neuroblasts and differentiated ganglion cells, and these lesions are extremely uncommon. Most previously reported primary intraaxial neuroblastic tumors were described in the brain. There has been only one other report of primary spinal cord CNS GNB published to date; the clinical course and prognosis for primary spinal cord tumors of this type are unknown. Similar tumor types demonstrate poor prognoses. This 23-year-old man presented after 9 months of progressive myelopathy. Admission MR imaging showed an intraaxial enhancing mass exten... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057576 Thu, 07 Jul 2011 23:00:00 +0100 5057576 http://www.medworm.com/index.php?rid=5057575&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21740126%26dopt%3DAbstract Conclusions The L5-S1 accessory articulations led to increased lordotic curves, L-5 vertebral heights, and pedicle and angular dimensions. The L5-S1 fusions were related to smaller disc heights at all spaces, short and wide L-5 pedicles, taller and less wide transverse processes, and overall straighter spines with the least measures for all lumbar angles. Dimensional differences provided in this study may help in placing instrumentation at the lumbar vertebrae and working on intervertebral disc replacements in spines with specific L5-S1 transitional anomalies. PMID: 21740126 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057575 Thu, 07 Jul 2011 23:00:00 +0100 5057575 http://www.medworm.com/index.php?rid=5057574&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21740127%26dopt%3DAbstract Conclusions Although spinal involvement of coccidioidomycosis is relatively uncommon, a high index of suspicion and aggressive therapy are warranted to prevent devastating neurological injury, and lifelong antifungal therapy is often warranted. PMID: 21740127 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057574 Thu, 07 Jul 2011 23:00:00 +0100 5057574 http://www.medworm.com/index.php?rid=5057573&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21740128%26dopt%3DAbstract Conclusions Chronic cerebellar hemorrhage should be included among the manifestations of spontaneous intracranial hypotension. The severity is variable, but the hemorrhage generally is asymptomatic. The underlying spinal CSF leak is ventral and mostly of long duration. PMID: 21740128 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057573 Thu, 07 Jul 2011 23:00:00 +0100 5057573 http://www.medworm.com/index.php?rid=5057572&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21740129%26dopt%3DAbstract Conclusions For differential diagnosis, spinal angiography was necessary in some cases. For most symptomatic lesions, complete microsurgical resection of the symptomatic ISCC is safe and prevents rebleeding and further neurological deterioration. However, in patients whose lesions were small and located ventrally in the spinal cord, one can also opt for a rigorous follow-up, considering the high surgical risk. PMID: 21740129 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057572 Thu, 07 Jul 2011 23:00:00 +0100 5057572 http://www.medworm.com/index.php?rid=5057571&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21740130%26dopt%3DAbstract Conclusions The outcomes of fusion surgery for T-OPLL were favorable. The absence of DM correlated with better outcomes. However, a high rate of complications was associated with the fusion surgery. PMID: 21740130 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5057571 Thu, 07 Jul 2011 23:00:00 +0100 5057571 http://www.medworm.com/index.php?rid=5008976&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21721871%26dopt%3DAbstract Conclusions The tram track sign and Sato classification were found to be useful for preoperative diagnosis of DO and for determining the surgical procedure to be performed. Dural ossification had no effect on postoperative neurological recovery. PMID: 21721871 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008976 Thu, 30 Jun 2011 23:00:00 +0100 5008976 http://www.medworm.com/index.php?rid=5008975&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21721872%26dopt%3DAbstract Conclusions This study demonstrates that needle puncture into a tail disc in the rat induces a rapid and progressive disc degeneration process without spontaneous recovery. Changes in gene expression profiles of the disc matrix molecules as well as anabolic and catabolic factors at early time points further delineate the mechanism of disc degeneration in this newly developed animal model. PMID: 21721872 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008975 Thu, 30 Jun 2011 23:00:00 +0100 5008975 http://www.medworm.com/index.php?rid=5008974&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21721873%26dopt%3DAbstract Conclusions These results suggest that G-CSF exerts neuroprotective effects via promotion of angiogenesis after SCI. PMID: 21721873 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008974 Thu, 30 Jun 2011 23:00:00 +0100 5008974 http://www.medworm.com/index.php?rid=5008983&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21699470%26dopt%3DAbstract Conclusions Double screw fixation with 3.5-mm screws provides the stiffest construct in Type II odontoid fractures. Bioabsorbable lag screws (5 mm) have the same AP bending and rotational stiffness as the single titanium lag screw (4 mm) in odontoid fractures. PMID: 21699470 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008983 Thu, 23 Jun 2011 23:00:00 +0100 5008983 http://www.medworm.com/index.php?rid=5008982&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21699471%26dopt%3DAbstract Conclusions Cervical total disc replacement allows for neural decompression and clinical results comparable to ACDF. Kineflex|C was associated with a significantly greater overall success rate than fusion while maintaining motion at the index level. Furthermore, there were significantly fewer Kineflex|C patients showing severe adjacent-level radiographic changes at the 2-year follow-up. These results from a prospective, randomized study support that Kineflex|C CTDR is a viable alternative to ACDF in select patients with cervical radiculopathy. PMID: 21699471 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008982 Thu, 23 Jun 2011 23:00:00 +0100 5008982 http://www.medworm.com/index.php?rid=5008981&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21699472%26dopt%3DAbstract Authors: Hadley MN PMID: 21699472 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008981 Thu, 23 Jun 2011 23:00:00 +0100 5008981 http://www.medworm.com/index.php?rid=5008980&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21699473%26dopt%3DAbstract Conclusions The authors' study suggests that revision lumbar arthrodesis for symptomatic pseudarthrosis provides improvement in low-back pain, disability, and quality of life. Revision lumbar arthrodesis should be considered a viable treatment option for patients with pseudarthrosis-related back pain. Mental health symptoms from pseudarthrosis-associated back pain may be more refractory to revision surgery. PMID: 21699473 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008980 Thu, 23 Jun 2011 23:00:00 +0100 5008980 http://www.medworm.com/index.php?rid=5008979&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21699474%26dopt%3DAbstract Authors: Nottmeier EW, Seemer W, Young PM PMID: 21699474 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008979 Thu, 23 Jun 2011 23:00:00 +0100 5008979 http://www.medworm.com/index.php?rid=5008978&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21699475%26dopt%3DAbstract Authors: Vaccaro AR PMID: 21699475 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008978 Thu, 23 Jun 2011 23:00:00 +0100 5008978 http://www.medworm.com/index.php?rid=5008977&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21699476%26dopt%3DAbstract Conclusions All 3 dural patch materials were of similar hydrostatic strength and allowed greater leakage than at the intact condition. The use of sealant reduced the amount of leakage at all pressures compared with patching alone but allowed more leakage than the intact state at a high hydrostatic pressure (90 mm Hg). PMID: 21699476 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=5008977 Thu, 23 Jun 2011 23:00:00 +0100 5008977 http://www.medworm.com/index.php?rid=4961417&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21682558%26dopt%3DAbstract Conclusions Patients with successfully treated postoperative deep wound infections do not have a difference in functional outcome compared with patients who underwent an identical operation but did not suffer a complicating infection. Patients who suffered an infection were more likely to be unsatisfied with the procedure than patients who did not. PMID: 21682558 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961417 Thu, 16 Jun 2011 23:00:00 +0100 4961417 http://www.medworm.com/index.php?rid=4961416&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21682559%26dopt%3DAbstract Conclusions The results of this study indicate that aqp-4 most likely does not play a major role in chronic syringomyelia. Its slight downregulation during the initial stage of syrinx formation is possibly a compensatory mechanism. This effect is not present during the late stage of syringomyelia, and aqp-4 is most likely not involved in the pathophysiology of syrinx cavity formation. PMID: 21682559 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961416 Thu, 16 Jun 2011 23:00:00 +0100 4961416 http://www.medworm.com/index.php?rid=4961415&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21682560%26dopt%3DAbstract Authors: Adogwa O PMID: 21682560 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961415 Thu, 16 Jun 2011 23:00:00 +0100 4961415 http://www.medworm.com/index.php?rid=4961423&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21663402%26dopt%3DAbstract Conclusions The MRT proved to be a useful and reliable tool in decreasing nerve morbidity following RF ablation in animals and may be used in humans for the same purpose. It serves as an indirect indicator of the proximity of the RF generator's electrode tip to any adjacent motor nervous structure. A minimum safe distance of 5 mm between the electrode tip and the nerve is required to avoid irreversible nerve injury, unless a bony wall is interposed between them, thus serving as a nerve shield. In medical conditions that require RF ablation of the nerve, such as spasticity and pain, the MRT must be lower than 0.5 V. When a nerve lesion is to be avoided such as in cases of osteoid osteoma, an MRT higher than 2.5 V is considered safe, reflecting a distance greater than 5 mm. PMID: 2166340... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961423 Thu, 09 Jun 2011 23:00:00 +0100 4961423 http://www.medworm.com/index.php?rid=4961422&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21663403%26dopt%3DAbstract Authors: Fehlings MG, Wilson JR PMID: 21663403 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961422 Thu, 09 Jun 2011 23:00:00 +0100 4961422 http://www.medworm.com/index.php?rid=4961421&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21663404%26dopt%3DAbstract Authors: Louis RG, Yen CP, Mohila CA, Mandell JW, Sheehan J The authors report the case of a patient with an intraosseous spinal arteriovenous malformation (AVM) presenting as an epidural mass lesion that was causing spinal cord compression. The 59-year-old woman had bilateral numbness, weakness, and hyperreflexia of both legs. Magnetic resonance imaging revealed intermediate T1 signal and hyperintense T2 signal involving the right transverse process, bilateral pedicles, and T-5 spinous process; the lesion's epidural extension was causing severe canal compromise and cord displacement. Coil embolization was performed, and the patient underwent resection, after which preoperative symptoms improved. Histopathological analysis revealed a benign vascular proliferation consistent with an int... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961421 Thu, 09 Jun 2011 23:00:00 +0100 4961421 http://www.medworm.com/index.php?rid=4961420&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21663405%26dopt%3DAbstract Authors: Shim JH, Park CK PMID: 21663405 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961420 Thu, 09 Jun 2011 23:00:00 +0100 4961420 http://www.medworm.com/index.php?rid=4961419&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21663406%26dopt%3DAbstract Conclusions The use of aFGF for spinal cord injury was safe and feasible in the present trial. There were significant improvements in ASIA motor and sensory scale scores, ASIA impairment scales, neurological levels, and functional independence measure at 24 months after treatment. Further large-scale, randomized, and controlled investigations are warranted to evaluate the efficacy and long-term results. PMID: 21663406 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961419 Thu, 09 Jun 2011 23:00:00 +0100 4961419 http://www.medworm.com/index.php?rid=4961418&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21663407%26dopt%3DAbstract Authors: Martirosyan NL, Feuerstein JS, Theodore N, Cavalcanti DD, Spetzler RF, Preul MC The authors present a review of spinal cord blood supply, discussing the anatomy of the vascular system and physiological aspects of blood flow regulation in normal and injured spinal cords. Unique anatomical functional properties of vessels and blood supply determine the susceptibility of the spinal cord to damage, especially ischemia. Spinal cord injury (SCI), for example, complicating thoracoabdominal aortic aneurysm repair is associated with ischemic trauma. The rate of this devastating complication has been decreased significantly by instituting physiological methods of protection. Traumatic SCI causes complex changes in spinal cord blood flow, which are closely related to the severity of inju... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4961418 Thu, 09 Jun 2011 23:00:00 +0100 4961418 http://www.medworm.com/index.php?rid=4912651&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21639694%26dopt%3DAbstract Authors: Chang HS, Tsuchiya T, Matsui T PMID: 21639694 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4912651 Thu, 02 Jun 2011 23:00:00 +0100 4912651 http://www.medworm.com/index.php?rid=4912650&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21639701%26dopt%3DAbstract Conclusions These measurements correlate with previous cadaveric and radiographic studies of the occipital condyle, and emphasize the role of preoperative planning for the feasibility of placement of an occipital condyle screw. PMID: 21639701 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4912650 Thu, 02 Jun 2011 23:00:00 +0100 4912650 http://www.medworm.com/index.php?rid=4912649&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21639702%26dopt%3DAbstract Conclusions Late instrumentation failure was a frequent complication after TES. Although patients with instrumentation failure experienced back pain, the neurological sequelae were not catastrophic. For prevention, meticulous preparation of the graft site and a longer posterior fixation should be considered. PMID: 21639702 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4912649 Thu, 02 Jun 2011 23:00:00 +0100 4912649 http://www.medworm.com/index.php?rid=4912655&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21619401%26dopt%3DAbstract Authors: Houten JK, Alexandre LC, Nasser R, Wollowick AL A lateral transpsoas approach to achieve interbody fusion in the lumbar spine using either the extreme lateral interbody fusion or direct lateral interbody fusion technique is an increasingly popular method to treat spinal disease. Dissection and dilation through the iliopsoas muscle places the lumbosacral plexus at risk for injury, but there is very limited information in the published literature about adverse clinical events resulting in postoperative motor deficits or reports of failure of electrophysiological monitoring to detect nerve injury. The authors present 2 cases of postoperative motor deficits following the transpsoas approach not detected by intraoperative monitoring, review the medical literature, and discuss strat... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4912655 Thu, 26 May 2011 23:00:00 +0100 4912655 http://www.medworm.com/index.php?rid=4912654&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21619402%26dopt%3DAbstract Authors: Hoover JM, Wenger DE, Eckel LJ, Krauss WE The authors present the case of a 56-year-old right hand-dominant woman who was referred for chronic neck pain and a second opinion regarding a cervical lesion. The patient's pain was localized to the subaxial spine in the midline. She reported a subjective sense of intermittent left arm weakness manifesting as difficulty manipulating small objects with her hands and fingers. She also reported paresthesias and numbness in the left hand. Physical and neurological examinations demonstrated no abnormal findings except for a positive Tinel sign over the left median nerve at the wrist. Electromyography demonstrated bilateral carpal tunnel syndrome with no cervical radiculopathy. Cervical spine imaging demonstrated multilevel degenerative di... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4912654 Thu, 26 May 2011 23:00:00 +0100 4912654 http://www.medworm.com/index.php?rid=4912653&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21619403%26dopt%3DAbstract Authors: Ryken T, Traynelis VC PMID: 21619403 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4912653 Thu, 26 May 2011 23:00:00 +0100 4912653 http://www.medworm.com/index.php?rid=4912652&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21619404%26dopt%3DAbstract Conclusions The authors' analysis provided moderate-quality evidence that iPLIF has the advantages of higher fusion rate and better restoration of spinal alignment over iPLF. No significant differences were identified between iPLIF and iPLF concerning clinical outcome, complication rate, operating time, and blood loss. PMID: 21619404 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4912652 Thu, 26 May 2011 23:00:00 +0100 4912652 http://www.medworm.com/index.php?rid=4865719&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21599443%26dopt%3DAbstract Authors: Tian Y, Yuan W, Chen H, Shen X The authors describe a case of spinal cord compression due to an osteochondroma arising from the T-6 vertebral body in a patient with hereditary multiple exostoses. This 16-year-old boy presented with spastic paraparesis. Surgical decompression was followed by resolution of the neurological impairments. Osteochondroma is the most common bone tumor. The distribution of osteochondromas greatly favors the extremities and these lesions rarely arise in the vertebral column. Osteochondromas occur in 2 distinct clinical settings-as solitary or multiple tumors, the latter being often associated with hereditary multiple exostoses. Osteochondromas are more commonly found in the posterior elements of the vertebrae. Intraspinal presentation of these tumors i... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4865719 Thu, 19 May 2011 23:00:00 +0100 4865719 http://www.medworm.com/index.php?rid=4865718&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21599444%26dopt%3DAbstract Conclusions A relatively longer time until, and lower rate for, fusion in the patients treated with ALIF and percutaneous PSF were noted, which may be correlated with a relatively lower rate of patients with excellent or good outcomes. These results seem to favor ALIF with instrumented PLF rather than ALIF with percutaneous PSF in the treatment of elderly patients with L5-S1 isthmic spondylolisthesis and foraminal stenosis. However, additional long-term follow-up, a larger number of patients, and well-designed studies are necessary for a more rigorous evaluation of the outcome of patients treated using these surgical techniques. PMID: 21599444 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4865718 Thu, 19 May 2011 23:00:00 +0100 4865718 http://www.medworm.com/index.php?rid=4865717&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21599445%26dopt%3DAbstract Conclusions Gabapentin demonstrated significant neuroprotection after early phases of ischemic injury. Further studies with different experimental settings including neurological outcome are required to achieve conclusive results. PMID: 21599445 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4865717 Thu, 19 May 2011 23:00:00 +0100 4865717 http://www.medworm.com/index.php?rid=4865716&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21599446%26dopt%3DAbstract Conclusions Surgery in adult patients with a tethered cord syndrome should be reserved for those with symptoms. In surgically treated patients, pain relief can often be achieved, and long-term neurological stabilization tends to persist more often than it does in conservatively treated patients. A conservative approach is warranted, however, in adult patients without neurological deficits. Revision surgery in patients with complex dysraphic lesions should be performed in exceptional cases only. PMID: 21599446 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4865716 Thu, 19 May 2011 23:00:00 +0100 4865716 http://www.medworm.com/index.php?rid=4865715&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21599447%26dopt%3DAbstract Authors: Meyer SA, Mummaneni PV PMID: 21599447 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4865715 Thu, 19 May 2011 23:00:00 +0100 4865715 http://www.medworm.com/index.php?rid=4865714&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21599448%26dopt%3DAbstract Conclusions The complication rate associated with AxiaLIF in the present study was relatively low (26.5%). The most common complications were superficial infection and pseudarthrosis. There were 2 cases of rectal perforation associated with AxiaLIF; one case was found intraoperatively and the other presented 4 days postoperatively. Both patients underwent emergency repair by a general surgeon and had no long-term sequelae as a result of the rectal injuries. It is important for surgeons to be aware of the potential for these complications. Many of these complications can probably be avoided with proper patient selection and operative planning. Preoperative MR imaging, a detailed patient physical examination and history, full bowel preparation, and the use of live fluoroscopy can all help to... Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4865714 Thu, 19 May 2011 23:00:00 +0100 4865714 http://www.medworm.com/index.php?rid=4865723&cid=s_36715_153_f&fid=36715&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2Fentrez%2Fquery.fcgi%3Ftmpl%3DNoSidebarfile%26db%3DPubMed%26cmd%3DRetrieve%26list_uids%3D21568649%26dopt%3DAbstract Conclusions Skipped pedicle screw fixation of flexible idiopathic scoliosis showed satisfactory results. This method has several advantages, including reduced blood loss, shorter operation time, and reduced cost. PMID: 21568649 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine) Journal of Neurosurgery.Spine journals http://www.medworm.com/rss/comments.php?id=4865723 Thu, 12 May 2011 23:00:00 +0100 4865723