ArticleJournal of shoulder and elbow arthroplasty2026
Seven-year outcome of a stemless impaction shoulder arthroplasty: a prospective, multicenter study.
Article in Journal of shoulder and elbow arthroplasty, 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: Previously published studies have demonstrated favorable clinical and radiographic outcomes at 2 and 5 years post-operatively following stemless shoulder arthroplasty. The objective of this prospective study is to evaluate the clinical and radiological outcomes 7 years post-operatively of the Sidus stem-free shoulder system. Methods: One hundred 7 patients were eligible for this analysis. Between November 2012 and December 2015, they were treated for primary or secondary osteoarthritis with the Sidus stem-free shoulder system at 7 European centers. Outcome variables included the Constant Murley score (CS), the American Shoulder and Elbow Surgeons (ASES) score, the Subjective Shoulder Value (SSV), and shoulder range of motion. Standardized radiographic evaluations (true anteroposterior, axial, and lateral views) were analyzed for signs of osteolysis, loosening of the glenoid or humeral components, ectopic bone formation, radiolucent lines, implant movement, and bone loss in the humerus. Pain levels were recorded using the CS pain subscale (0 = severe pain to 15 = no pain), along with overall patient satisfaction at each interval. Outcomes of patients treated with a total shoulder arthroplasty (TSA) and hemi shoulder arthroplasty (HSA) were compared. A Kaplan-Meier survival analysis was also performed. Results: Forty-six patients (23 males, 23 females) with an average age of 60.1 years (ranging from 40 to 79 years) completed the 7-year follow-up examination. Consistent with findings from the 2- and 5-year follow-up, a statistically significant improvement across all clinical outcome measures was observed when compared to baseline values ( Conclusion: At the 7-year follow-up, the Sidus stem-free shoulder system continues to demonstrate favorable outcomes in the management of primary and secondary glenohumeral osteoarthritis, with consistently good clinical scores and no radiographic evidence of aseptic loosening of the humeral component.
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