ArticleJSES reviews, reports, and techniques2026
Clinical and radiographic outcomes following medial collateral ligament-sparing interposition elbow arthroplasty using acellular dermal allograft.
Article in JSES reviews, reports, and techniques, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Interposition arthroplasty is a joint-preserving option for younger patients with elbow osteoarthritis who are poor candidates for total elbow arthroplasty. However, optimal graft choice and surgical technique remain unclear. This study evaluates clinical and radiographic outcomes following interposition elbow arthroplasty using an acellular dermal allograft with a medial collateral ligament-sparing approach. Methods: A retrospective review was performed of consecutive patients undergoing interposition elbow arthroplasty at a single academic institution from 2014 to 2025. Patients with ≥6 months' follow-up were included. Outcomes included visual analog scale pain, Disabilities of the Arm, Shoulder, and Hand scores, range of motion, radiographic joint space, complications, and reoperations. Subgroup analyses were performed by diagnosis and revision status. Radiographic outcomes were analyzed using repeated measures analysis of variance. Results: Eighteen patients (mean age, 54 years) were included, with a mean follow-up of 40 (6-87) months for patient-reported outcomes. Significant improvements were observed in visual analog scale pain (-3.0, Conclusion: Interposition elbow arthroplasty using an acellular dermal allograft with a medial collateral ligament-sparing approach yields improvements in pain and function that reach a minimally clinically important difference. Patients undergoing revision or secondary surgery experienced very high rates of complication or reoperation, while those undergoing primary surgery did not. Despite partial loss of early radiographic gains, the procedure does not appear to accelerate degenerative changes, supporting its role as a joint-preserving option in younger patients.
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