Medial Patellofemoral Ligament Reconstruction Using Dual Patella Docking Technique

Medial patellofemoral ligament (MPFL) injuries are common in children and young adults. In patients with recurrent patellar dislocations with normal lower-extremity alignment, anatomic reconstruction of the MPFL has been shown to restore patellar stability. We describe a technique that creates an anatomic reconstruction using a dual docking technique into the patella. Our technique is simple and efficacious for reconstructing the MPFL without implant fixation in the patella, allowing a maximal bone-tendon interface for healing

Time to publication for orthopaedic surgery peer-reviewed journals: A cross-sectional bibliometric analysis.

BACKGROUND: The dissemination of research and evidence-based medicine is critical to advancing science and improving clinical practice. The purpose of this study was to evaluate the timing and associated factors of the publication process for the most influential orthopaedic surgery research journals. METHODS: After analyzing 25 orthopaedic surgery journals with the highest impact factors, 14 journals provided the necessary information for data analysis. A minimum of three consecutive issues per journal from 2021 were collected for review. Within each issue, all articles were included except for reviews, commentaries, replies, letters to the editor, and invited articles. The publication times for received to accepted (RA), received to published in press (RP1), and received to published in print (RP2) were retrieved and compared. Journal impact factor, specialty, and article level of evidence were recorded. RESULTS: A total of 1040 articles were included with a mean number of 74.3 ± 38 (range, 35-182) articles analyzed per journal. The mean impact factor for the 14 journals was 3.6 ± 1 (range, 2.5-5.8). The overall median duration of time for RA, RP1, and RP2 were 119 (IQR, 78-165) days, 157 (IQR, 102-216) days, and 291 (IQR, 243-378) days across all 14 journals, respectively. Journal of Arthroplasty demonstrated the shortest median duration of time for RA and RP1, while International Orthopaedics demonstrated the shortest median duration of time for RP2. Clinical Journal of Sport Medicine demonstrated the longest median duration of time for RA and RP2, while the American Journal of Sports Medicine demonstrated the longest median duration of time for RP1. Level three studies, which included retrospective case-control and cohort study designs, demonstrated the shortest publication times, while sports medicine journals demonstrated the longest publication times for all periods. CONCLUSION: There was substantial variation in publication times across orthopaedic surgery journals which may impact accessibility to clinical insights

Histological Evidence of Muscle Degeneration in Advanced Human Rotator Cuff Disease.

BackgroundCellular remodeling in rotator cuff muscles following a massive rotator cuff tear is poorly understood. The aim of the current study was to provide histological evidence to elucidate the mode of muscle loss in advanced human rotator cuff disease and to assess tissue-level changes in relation to findings on noninvasive imaging.MethodsRotator cuff muscle biopsy samples were taken from the scapular fossae from 23 consecutive patients undergoing reverse total shoulder arthroplasty in order to evaluate muscle composition in severe rotator cuff disease. Markers of vascularity; inflammation; fat distribution; and muscle atrophy, degeneration, and regeneration were quantified.ResultsThe samples primarily consisted of dense, organized connective tissue (48.2% ± 19.1%) and disorganized, loose connective tissue (36.9% ± 15.9%), with substantially smaller fractions of muscle (10.4% ± 22.0%) and fat (6.5% ± 11.6%). Only 25.8% of the biopsy pool contained any muscle fibers at all. Increased inflammatory cell counts (111.3 ± 81.5 macrophages/mm) and increased vascularization (66.6 ± 38.0 vessels/mm) were observed across biopsies. Muscle fiber degeneration was observed in 90.0% ± 15.6% of observable muscle fascicles, and the percentage of centrally nucleated muscle fibers was pathologically elevated (11.3% ± 6.3%). Fat accumulation was noted in both perifascicular (60.7% ± 41.4%) and intrafascicular (42.2% ± 33.6%) spaces, with evidence that lipid may replace contractile elements without altering muscle organization.ConclusionsDramatic degeneration and inflammation of the rotator cuff muscles are characteristics of the most chronic and severe rotator cuff disease states, suggesting that muscle loss is more complicated than, and distinct from, the simple atrophy found in less severe cases.Clinical relevanceIn order to address degenerative muscle loss, alternative therapeutic approaches directed at muscle regeneration must be considered if muscle function is to be restored in late-stage rotator cuff disease

Medial Epicondyle Morphology in Elite Overhead Athletes: A Closer Look Using 3-Dimensional Computer Simulation

Background: Prior studies have attempted to determine morphological characteristics of the medial epicondyle in overhead athletes, but no study has reported on precise quantitative differences between elite overhead athletes and control patients. Hypothesis: The medial epicondyle in overhead athletes is larger in volume than those of control patients. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Computer simulation modeling from advanced (computed tomography/magnetic resonance imaging) imaging of the elbow of 37 patients (22 elite overhead athletes, 15 control patients) was performed to provide detailed assessment of the morphological characteristics of the medial epicondyle. Several quantitative metrics regarding the medial epicondyle were measured and compared across both cohorts, including that of epicondyle width (medial-lateral), height (superior-inferior), thickness (anterior-posterior), volume, percentage cortical volume, and morphology of the inferior slope of the epicondyle. Results: The medial epicondyle in overhead athletes was significantly larger than that found in nonathlete controls (4976 vs 3682 mm3; P = .001). There was no significance between the 2 cohorts in medial-lateral width (16.8 vs 16.6 mm; P = .68), but there was a difference in anterior-posterior thickness (16.96 vs 14.40 mm; P = .001) and superior-inferior height (39.55 vs 35.86 mm; P = .09) in athletes versus controls. The epicondyle volume was 97.9% cortical bone in athletes compared with 82.3% in control patients (P < .001). There were no differences in the morphology of the inferior epicondyle slope between the 2 groups. Conclusion: The medial epicondyle in overhead athletes is larger in volume and anterior-posterior thickness than those of control patients. Additionally, the medial epicondyle is comprised nearly entirely of cortical bone in overhead athletes. Clinical Relevance: These quantitative findings support the theory of adaptive remodeling in skeletally immature overhead athletes

Histological Evidence of Muscle Degeneration in Advanced Human Rotator Cuff Disease.

BackgroundCellular remodeling in rotator cuff muscles following a massive rotator cuff tear is poorly understood. The aim of the current study was to provide histological evidence to elucidate the mode of muscle loss in advanced human rotator cuff disease and to assess tissue-level changes in relation to findings on noninvasive imaging.MethodsRotator cuff muscle biopsy samples were taken from the scapular fossae from 23 consecutive patients undergoing reverse total shoulder arthroplasty in order to evaluate muscle composition in severe rotator cuff disease. Markers of vascularity; inflammation; fat distribution; and muscle atrophy, degeneration, and regeneration were quantified.ResultsThe samples primarily consisted of dense, organized connective tissue (48.2% ± 19.1%) and disorganized, loose connective tissue (36.9% ± 15.9%), with substantially smaller fractions of muscle (10.4% ± 22.0%) and fat (6.5% ± 11.6%). Only 25.8% of the biopsy pool contained any muscle fibers at all. Increased inflammatory cell counts (111.3 ± 81.5 macrophages/mm) and increased vascularization (66.6 ± 38.0 vessels/mm) were observed across biopsies. Muscle fiber degeneration was observed in 90.0% ± 15.6% of observable muscle fascicles, and the percentage of centrally nucleated muscle fibers was pathologically elevated (11.3% ± 6.3%). Fat accumulation was noted in both perifascicular (60.7% ± 41.4%) and intrafascicular (42.2% ± 33.6%) spaces, with evidence that lipid may replace contractile elements without altering muscle organization.ConclusionsDramatic degeneration and inflammation of the rotator cuff muscles are characteristics of the most chronic and severe rotator cuff disease states, suggesting that muscle loss is more complicated than, and distinct from, the simple atrophy found in less severe cases.Clinical relevanceIn order to address degenerative muscle loss, alternative therapeutic approaches directed at muscle regeneration must be considered if muscle function is to be restored in late-stage rotator cuff disease

Pain associated psychological distress is more strongly associated with shoulder pain and function than tear severity in patients undergoing rotator cuff repair

Background: Psychological distress has been associated with declining shoulder function in patients with rotator cuff tears (RCTs). Thus, we aimed to 1) evaluate the absence or presence of differences in shoulder pain, function, or pain-associated psychological distress in patients with increasing RCT severity and 2) assess whether psychological distress is associated with shoulder pain and function while adjusting for RCT severity. Methods: Consecutive patients who underwent rotator cuff repair and completed the optimal screening for prediction of referral and outcome (OSPRO) survey from 2019 to 2021 were included. OSPRO is composed of 3 domains that estimate pain associated psychological distress (negative mood, negative coping, and positive coping). Demographics, tear characteristics, and three patient reported outcomes (PRO), including the visual analog scale (VAS), Single Assessment Numeric Evaluation, and American Shoulder and Elbow Surgeons Standardized Shoulder Assessment Form (ASES) were collected. Patients were analyzed with analysis of variance and chi-square tests and stratified based on severity of RCTs into three groups: partial-thickness, small-to-medium full-thickness, and large-to-massive full-thickness tear. Linear regression analysis was used to evaluate the association between OSPRO scores and PROs, adjusting for severity of RCT. Results: Eighty-four patients were included: 33 (39%) had partial-thickness, 17 (20%) had small-to-medium full-thickness, and 34 (41%) had large-to-massive tears. Regarding PROs and psychological distress, there were no significant differences amongst the three cohorts. In contrast, multiple significant associations between psychological distress and PROs were found. Within the negative coping domain, fear avoidance dimensions demonstrated the strongest correlation to PROs: fear-avoidance behavior for physical activity (ASES Beta −0.592, P < .001; VAS 0.357, P < .001) and work (ASES Beta −0.442, P < .001; VAS 0.274, P = .015). Several other dimensions within the negative coping, negative mood, and positive coping domains also demonstrated significant associations to PROs. Discussion: These findings suggest that in patients undergoing arthroscopic rotator cuff repair, preoperative psychological distress can more strongly influence patient perception of shoulder pain and diminished shoulder function than RCT severity

Intramedullary versus locking plate fixation for proximal humerus fractures: indications and technical considerations

Background: The incidence of proximal humerus fractures (PHFs) continues to increase with an aging population, and intramedullary nailing (IMN) and locking plate fixation are two commonly employed techniques for the surgical management of PHF. However, the optimal fixation method can be a source of ongoing controversy. Some influencing factors include the extent of humeral head involvement, fracture complexity, patient age, and surgeon preference. There are many studies that provide a mix of data either when comparing the two techniques or analyzing them in isolation. The aim of this review is to further elucidate the indications and technical considerations involved specifically in IMN vs. locking plate fixation for PHF to further aid orthopedic surgeons when choosing surgical management. Methods: A narrative approach was chosen for this review allowing for a comprehensive review of literature, including recent findings pertaining to the comparison of management options for PHF. A comprehensive literature search was conducted using the PubMed, Embase, and Cochrane Library databases. The inclusion criteria involved studies that discussed “proximal humerus fracture” and either “intramedullary nail” or “locking plate fixation.” Results: Complications such as avascular necrosis, hardware failure, additional surgical interventions, infection, fracture redisplacement, rotator cuff rupture, and nonunion did not show significant differences between the two groups. Newer generation humeral nails have minimized early complications. As both techniques undergo further refinement and utilization when specifically indicated, functional outcomes, potential complications, and postoperative pain continue to be improved. Conclusion: The available evidence suggests that both intramedullary nails and locking plates can effectively restore shoulder function in the treatment of displaced proximal humeral fractures, with unclear superiority of either method. The choice of technique should be tailored to patient factors such as fracture type, age, bone quality, and functional expectations. Surgeon experience also plays a role. While certain presentations may exhibit trends that favor one fixation, no specific technique can be universally recommended. Both IMN and LP have shown comparable and satisfactory outcomes, and the final fixation method chosen should take into account the unique characteristics of each patient