Mentalis nerve branches supplying the lower lip revisited: a study of human fetuses and donated elderly cadavers
ConclusionThe lower lip skin was innervated by a perforating branch passing through the orbicularis oris muscle, that was different from the lip mucosa. A sudden change in the nerve ending configuration at the mucocutaneous junction seemed to develop postnatally. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 29, 2024 Category: Anatomy Source Type: research
Intramuscular nerve distribution of the sternocleidomastoid muscle for the botulinum toxin injection
ConclusionsThis study shows the position of the intramuscular nerve fibers endings of the SCM according to the chosen landmarks and the relationship of the IZ with the vessels to prevent complications. These results can be used as a guide for safe and effective botulinum toxin injections with optimal quantities. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 29, 2024 Category: Anatomy Source Type: research
Infraorbital canal variants and its clinical and surgical implications. A systematic review
ConclusionsThis systematic review identified four IOC variants: Type 1, within or below the MS roof; Type 2, partially protruding into the sinus; Type 3, fully protruding into the sinus or suspended from the roof; and Type 4, in the orbital floor. Clinical recommendations aim to prevent nerve injuries and enhance preoperative assessments. However, the lack of consistent statistical methods limits robust associations between IOC variants and clinical outcomes. Data heterogeneity and the absence of standardized reporting impede meta-analysis. Future research should prioritize detailed reporting, objective measurements, and s...
Source: Surgical and Radiologic Anatomy - April 29, 2024 Category: Anatomy Source Type: research
Regional variations and sex-related differences of stiffness in human tracheal ligaments
ConclusionThese results reveal that there are regional and sex-related differences in the stiffness of human tracheal ligaments. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 29, 2024 Category: Anatomy Source Type: research
Combined lie ’s type D and type a agenesis of the left internal carotid artery diagnosed by magnetic resonance angiography
ConclusionLie ’s type D ICA agenesis usually does not communicate with the anterior and posterior circulations. We encountered a case of combined type D and type A ICA agenesis. To our knowledge, no similar case has been reported in the English literature. This is the second case of type D ICA agenesis with pat ent ipsilateral PCoA. We speculate that in case of type A ICA agenesis, when the development of the PCoA is insufficient to support collateral blood flow, an anastomotic vessel between bilateral ICAs may develop. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 29, 2024 Category: Anatomy Source Type: research
Visuospatial abilities and 3D-printed based learning
ConclusionThis study showed that VSA has an impact on the recognition of complex clinical presentations, i.e. skulls with craniosynostosis. The correlation found between VSA and complex 3D shape recognition after learning aided with 3D-printed model is emphasizing the importance of VSA when using innovative technologies. Thus, VSA training should be envisioned during the curriculum. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
Scapular foramina – a systematic review with meta-analysis based on 3316 scapulae
ConclusionThe presented data contribute to a comprehensive understanding of the prevalence, distribution, and characteristics of suprascapular and nutrient foramina in scapulae, considering different topographical areas, genders, and sides. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
Mesenteric sparing approach for advanced nodal extent in small intestinal neuroendocrine tumors. Is there a limit to the vascular resection in order to avoid creating a short small bowel syndrome? An anatomic research study
ConclusionWe observed a trend suggesting that the first and second JA may sustain a SB length beyond the viable 1.5 m limit, implying the feasibility of stage III-up SI-NET resection with just two JA. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
Anatomical features of the proximal end of the radius and its implications for implant design
ConclusionsMorphological and morphometric features of the proximal radius are important for prosthesis design and implantation. The ideal radial head prosthesis design is challenging due to numerous parameters, wide ranges and low correlation, although modular designs facilitate compatibility. The widespread use of 3D printing technologies is expected to reduce the potential complications associated with prosthesis applications. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
Posterior vascular anatomy of the encephalon: a comprehensive review
ConclusionThis work serves as a succinct yet comprehensive guide, offering fundamental insights into neurovascular anatomy within the encephalon ’s posterior circulation. Intended for both novice physicians and seasoned neuroanatomists, the article aims to facilitate a more efficient clinical decision-making in neurosurgical and neurological practices. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
Innervation patterns of hamstring muscles, including morphological descriptions and clinical implication
ConclusionsWe have characterized hamstring innervation patterns, knowledge that is relevant to neurolysis, surgery of the thigh, and other procedures. Moreover, a mechanical connection between the sciatic nerve and biceps femoris long head was identified that could explain certain neuralgias. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
An anatomic consideration of the femoral nerve during direct anterior hip approach: A cadaveric study
ConclusionSurgeons approaching the hip joint via the direct anterior approach should be cautious at the inferior point of the anterior rim of the acetabulum and the mid aspect of the femoral neck. The soft spot at the anterior rim of the acetabulum remains safe from direct injury when surgeons use the correct technique during anterior retractor insertion. (Source: Surgical and Radiologic Anatomy)
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
A rare variation of the infraorbital nerve, entrapping the infraorbital artery
AbstractAnatomical variations are a common feature of the human anatomy. Variation can explain some pathological conditions and is important to keep them in mind during surgical procedures. The relations between nerves and their adjacent arteries have been proposed to play a role in the generation of peripheral trigger migraines. Close opposition between nerves and arteries can lead to vascular compression of the nerve that triggers episodes of pain. We did a routine dissection of the infratemporal fossa and orbital floor by opening the maxillary sinus. Here we report a case where the infraorbital nerves form a nervous loo...
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
Unusually elongated superior thyroid cornu associated with recurrent cerebral embolisms
AbstractThe superior thyroid cornu (STC) is a normal anatomic structure that forms part of the thyroid cartilage. Here, we report a patient with unusually elongated and ossified STC that might result in recurrent cerebral embolisms. During a second endovascular therapy for recurrent middle cerebral artery embolism, a segment with an irregular filling defect was noted in the internal carotid artery (ICA), at the C1 level. This defect was unnoticed during the initial endovascular procedure. Three-dimensional computed tomography angiography performed after the second endovascular procedure revealed an ICA segment located betw...
Source: Surgical and Radiologic Anatomy - April 23, 2024 Category: Anatomy Source Type: research
Superficial branch of the radial nerve passing through the supinator canal, emerging between the extensor digitorum and abductor pollicis longus muscles and consequently supplying the second finger and radial portion of the third finger: a case report and clinical implications
We present a unique case encountered during a routine dissection of a Central European male cadaver. An unusual course of the superficial branch of the radial nerve was found in the right forearm, where the superficial branch of the radial nerve originated from the radial nerve distally, within the supinator canal, emerged between the extensor digitorum and abductor pollicis longus muscles and supplied the second and a radial half of the third digit, featuring communications with the lateral antebrachial cutaneous nerve and the dorsal branch of the ulnar nerve. Due to dorsal emerging of the superficial branch of the radial...
Source: Surgical and Radiologic Anatomy - April 18, 2024 Category: Anatomy Source Type: research
