The Effect of Supplementary Staple Fixation on Biomechanical Properties of Soft Tissue Graft Tibial Fixation in Anterior Cruciate Ligament Reconstruction
This study aimed to test and compare the biomechanical properties of three tibial fixation methods of anterior cruciate ligament (ACL) tendon grafts under cyclic load and load-to-failure testing in the bovine proximal tibiae, comprising (1) staple fixation alone, (2) interference screw fixation alone, and (3) interference screw fixation with a supplementary staple. Twenty-four bovine tibiae used in the study were divided into three groups (eight proximal tibiae in each group) based on tibial fixation methods of ACL tendon grafts: group A (a spiked ligament staple alone), group B (a cannulated interference screw alone), and...
Source: Journal of Knee Surgery - April 10, 2024 Category: Orthopaedics Authors: Y ıldırım, Cem Demirel, Mehmet Koraman, Emre Murato ğlu, Osman Görkem Yamak, Fatih Bozda ğ, Süreyya Ergün Kocabey, Yavuz Tags: Original Article Source Type: research
Social Determinants of Long-Term Opioid Use Following Total Knee Arthroplasty
This study utilized data from the Veterans Affairs Surgical Quality Improvement Program, VA Corporate Data Warehouse, and Centers for Medicare and Medicaid Services, including Veterans aged ≥ 65 who underwent elective TKA between 2013 and 2019 with no postsurgical complications or history of significant opioid use. LTO was defined as > 90 days of opioid use beginning within 90 days postsurgery. SDoH variables included the Area Deprivation Index, rurality, and housing instability in the last 12 months identified via medical record screener or International Classification of Diseases, Tenth Revision codes. Multivari...
Source: Journal of Knee Surgery - April 10, 2024 Category: Orthopaedics Authors: Hadlandsmyth, Katherine Lund, Brian C. Gao, Yubo Strayer, Andrea L. Davila, Heather Hausmann, Leslie R. M. Schmidt, Susanne Shireman, Paula K. Jacobs, Michael A. Mader, Michael J. Tessler, Robert A. Duncan, Carly A. Hall, Daniel E. Sarrazin, Mary Vaughan Tags: Original Article Source Type: research
Cementless versus Cemented Total Knee Arthroplasty Using the Same Implant Design: A Mean 5-Year Follow-up Study
J Knee Surg DOI: 10.1055/s-0044-1785192Cementless implant use continues to increase primarily due to increased numbers of younger and obese patients opting for primary total knee arthroplasty (TKA). Given the increased use of cementless implants, the purpose of this study was to evaluate the midterm clinical performance of cementless TKA using a highly porous tibial baseplate compared with its cemented counterpart of the same system. We conducted a retrospective case-control study of 400 patients undergoing primary TKA that included 200 patients with cementless components matched for age and body mass index (BMI) to 200 pa...
Source: Journal of Knee Surgery - March 29, 2024 Category: Orthopaedics Authors: Miller, Adam J. Nadar, Arun C. Granade, Charles M. Smith, Langan S. Yakkanti, Madhusudhan R. Malkani, Arthur L. Tags: Original Article Source Type: research
Difference in the Extension Gap Between Osteoarthritis and Osteonecrosis in Medial Fixed-Bearing Unicompartmental Knee Arthroplasty with the Spacer Block Technique
J Knee Surg DOI: 10.1055/s-0044-1785222The spacer block technique is widely used in medial fixed-bearing unicompartmental knee arthroplasty (UKA) for osteoarthritis (OA) and osteonecrosis (ON), while it is still unclear if there is any difference in the extension gap between UKAs for the two conditions. To clarify the question, the data from 87 consecutive patients (OA: 57 patients and ON: 30 patients) who underwent medial fixed-bearing UKA with the spacer block technique were retrospectively collected and analyzed. The component gap between the medial tibial osteotomy surface and the femoral trial prosthesis in extension ...
Source: Journal of Knee Surgery - March 29, 2024 Category: Orthopaedics Authors: MD, Naoki Nakano MD, Toshihisa Maeda MD, Yuichi Kuroda MD, Kazunari Ishida MD, Shinya Hayashi MD, Yuichi Hoshino MD, Takehiko Matsushita MD, Ryosuke Kuroda MD, Tomoyuki Matsumoto Tags: Original Article Source Type: research
Accelerated versus Standard Rehabilitation after Meniscus Allograft Transplantation in the Knee
J Knee Surg DOI: 10.1055/a-2274-6914Meniscus allograft transplantation (MAT) is a proven treatment option for patients with symptomatic irreparable meniscus deficiency. When patients are adherent to prescribed postoperative restriction and rehabilitation protocols, outcomes after MAT are considered good to excellent. However, nonadherence to standard protocols is common and can be associated with undesirable outcomes and patient dissatisfaction. Based on demonstrated safety for early weight-bearing following MAT in conjunction with significant advances in graft preservation and surgical techniques, our joint preservation c...
Source: Journal of Knee Surgery - March 14, 2024 Category: Orthopaedics Authors: Rucinski, Kylee Stannard, James P. Crecelius, Cory Nuelle, Clayton Cook, James L. Tags: Original Article Source Type: research
Thank You to Our Reviewers
J Knee Surg 2024; 37: 333-334 DOI: 10.1055/s-0044-1781467 Thieme Medical Publishers, Inc. 333 Seventh Avenue, 18th Floor, New York, NY 10001, USAArticle in Thieme eJournals: Table of contents | Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - March 12, 2024 Category: Orthopaedics Tags: Reviewers' List Source Type: research
Are Femoral Stems in Primary Total Knee Arthroplasty Cost Effective in High Fracture Risk Patients? A Risk Model and Cost Analysis
J Knee Surg DOI: 10.1055/a-2265-9979Femoral stemmed total knee arthroplasty (FS TKA) may be used in patients deemed higher risk for periprosthetic fracture (PPF) to reduce PPF risk. However, the cost effectiveness of FS TKA has not been defined. Using a risk modeling analysis, we investigate the cost effectiveness of FS in primary TKA compared with the implant cost of revision to distal femoral replacement (DFR) following PPF. A model of risk categories was created representing patients at increasing fracture risk, ranging from 2.5 to 30%. The number needed to treat (NNT) was calculated for each risk category, which was mu...
Source: Journal of Knee Surgery - March 11, 2024 Category: Orthopaedics Authors: Rackard, Forrest Gilreath, Noah Pasqualini, Ignacio Molloy, Robert Krebs, Viktor Piuzzi, Nicolas S. Deren, Matthew E. Tags: Original Article Source Type: research
What Is the Correlation between Coronal Plane Alignment Measured on Pre- and Postoperative Weight-bearing Radiographs and Intraoperative Navigation When Stress Is Applied to the Knee?
This study examines the correlation between the weight-bearing (WB) long leg radiograph (LLR)-derived hip–knee–ankle angle (HKAA) and intraoperative supine computer-assisted surgery (CAS)-derived HKAA measurements at the beginning and end of total knee arthroplasty (TKA). The primary aim of the study was to determine if WB alignment could be mimicked or inferred based on intraoperative alignment findings. We conducted a prospective analysis from a cohort of 129 TKAs undergoing a CAS TKA at a single center by a single surgeon. The HKAA was recorded using the CAS navigation system immediately postregistration of navigati...
Source: Journal of Knee Surgery - March 5, 2024 Category: Orthopaedics Authors: O'Neill, Anthony McAuliffe, Michael Pillay, Tristan Garg, Gautam Whitehouse, Sarah Crawford, Ross Tags: Original Article Source Type: research
Can ChatGPT Answer Patient Questions Regarding Total Knee Arthroplasty?
J Knee Surg DOI: 10.1055/s-0044-1782233The internet has introduced many resources frequently accessed by patients prior to orthopaedic visits. Recently, Chat Generative Pre-Trained Transformer, an artificial intelligence-based chat application, has become publicly and freely available. The interface uses deep learning technology to mimic human interaction and provide convincing answers to questions posed by users. With its rapidly expanding usership, it is reasonable to assume that patients will soon use this technology for preoperative education. Therefore, we sought to determine the accuracy of answers to frequently aske...
Source: Journal of Knee Surgery - March 5, 2024 Category: Orthopaedics Authors: Mika, Aleksander P. Mulvey, Hillary E. Engstrom, Stephen M. Polkowski, Gregory G. Martin, J. Ryan Wilson, Jacob M. Tags: Original Article Source Type: research
Femoral Tunnel Position in Anatomical Double-bundle ACL Reconstruction is not Affected by Blumensaat's Line Morphology
J Knee Surg DOI: 10.1055/a-2265-9586The aim of this study was to reveal the influence of the morphological variations of the Blumensaat's line on anteromedial (AM) and posterolateral (PL) femoral tunnel position in anatomical double-bundle anterior cruciate ligament (ACL) reconstruction.Fifty-three subjects undergoing anatomical double-bundle ACL reconstruction were included (29 female, 24 male; median age 27.4 years; range: 14–50 years). Using an inside-out transportal technique, the PL tunnel position was made on a line drawn vertically from the bottommost point of the lateral condyle at 90 degrees of knee flexion, s...
Source: Journal of Knee Surgery - March 4, 2024 Category: Orthopaedics Authors: Yahagi, Yoshiyuki Iriuchishima, Takanori Iwama, Genki Suruga, Makoto Nakanishi, Kazuyoshi Tags: Original Article Source Type: research
Robotic-assisted Total Knee Arthroplasty Technology Provides a Repeatable and Reproducible Method of Assessing Soft Tissue Balance
This study aimed to evaluate the repeatability and reproducibility of ligamentous laxity assessments during RATKA using a digital tensioner.Three experienced RATKA surgeons assessed preresection and trialing phases of 12 human cadaveric knees with varying degrees of arthritis. Ligamentous laxity was assessed with manual varus and valgus stresses in extension and flexion, with a digital tensioner providing feedback on the change of laxity displacement. Intraclass correlation coefficient (ICC) analyses were used to determine the repeatability within a single surgeon and reproducibility between the three surgeons.The results ...
Source: Journal of Knee Surgery - March 4, 2024 Category: Orthopaedics Authors: Scholl, Laura Y Hampp, Emily L. Caba, Melanie Azhar, Ali Hameed, Daniel Dubin, Jeremy Crutcher, James P. Mont, Michael A. Mahoney, Ormonde M. Tags: Original Article Source Type: research
Biomechanical Comparison of Uniplanar versus Biplanar Lateral Opening-wedge Distal Femoral Osteotomy Techniques in Terms of Risk for Medial Hinge Fracture
This study aimed to compare the biomechanical strength of uniplanar versus biplanar LOWDFO regarding the risk for medial hinge fracture during gap opening. Twelve composite femora were divided into two groups (six in each group) based on the distal femoral osteotomy technique: uniplanar versus biplanar LOWDFO. All LOWDFO models were subjected to incremental static loading. The gap distance was expanded by 1 mm, and displacement values were recorded as anterior and posterior gap distances (mm). The average force values of all samples at certain gap distances were recorded, and the head distance was measured. The uniplanar...
Source: Journal of Knee Surgery - February 27, 2024 Category: Orthopaedics Authors: Y ıldırım, Cem Demirel, Mehmet Ekinci, Mehmet Öztürk, Simge Bozda ğ, Süreyya Ergün Tags: Original Article Source Type: research
An Evaluation of Anatomic Referencing for Femoral Component Sizing Using Computed Tomography-Based Computer Modeling
J Knee Surg DOI: 10.1055/a-2240-3566One of the critical steps in total knee arthroplasty is femoral component positioning and sizing. Historically, there was wider variability between femoral component sizes, necessitating the concepts of anterior referencing (AR) and posterior referencing (PR). With the introduction of smaller increments between sizes, the concept of anatomic referencing has been introduced to replace AR and PR. The intent of this study was to validate the concept of anatomic referencing and show that with 2 mm increments in femoral sizes, the femoral component can be placed flush to the anterior cortex...
Source: Journal of Knee Surgery - February 27, 2024 Category: Orthopaedics Authors: Campbell, Brett Weinberg, Max Bischoff, Jeffrey Scuderi, Giles R. Tags: Original Article Source Type: research
Postoperative Bracing after Medial Patellofemoral Ligament Reconstruction
J Knee Surg DOI: 10.1055/a-2232-4856It is unclear if bracing is necessary after isolated medial patellofemoral ligament reconstruction (MPFLr) for recurrent patellar instability. We hypothesize that patients who did not use a brace will have similar outcomes to those who were braced postoperatively. A retrospective review of patients who underwent isolated MPFLr from January 2015 to September 2020 at a single institution was performed. Those with less than 6 weeks of follow-up were excluded. The braced group was provided a hinged-knee brace postoperatively until the return of quadriceps function, which was determined by th...
Source: Journal of Knee Surgery - February 7, 2024 Category: Orthopaedics Authors: Schaver, Andrew L. Tranovich, Meaghan A. O'Reilly, Olivia C. Bollier, Matthew J. Duchman, Kyle R. Wolf, Brian R. Westermann, Robert W. Tags: Original Article Source Type: research
Geriatric Distal Femur Fractures Treated with Arthroplasty Are Associated with Lower Mortality but Greater Costs Compared with Open Reduction and Internal Fixation at 30 Days
J Knee Surg DOI: 10.1055/a-2232-7826Distal femur fractures (DFFs) are common injuries with significant morbidity. Surgical options include open reduction and internal fixation (ORIF) with plates and/or intramedullary devices or a distal femur endoprosthesis (distal femur replacement [DFR]). A paucity of studies exist that compare the two modalities. The present study utilized a 1:2 propensity score match to compare 30-day outcomes of geriatric patients with DFFs who underwent an ORIF or DFR. The National Surgical Quality Improvement Program data from 2008 to 2019 were utilized to identify all patients who sustained a DFF a...
Source: Journal of Knee Surgery - February 7, 2024 Category: Orthopaedics Authors: Gwam, Chukwuweike U. Harmody, Kristen Confroy Luo, T. David Rosas, Samuel Plates, Johannes Tags: Original Article Source Type: research
