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Erschienen in:
09.05.2018 | Original Article
Revision shoulder arthroplasty for failed surface replacement hemiarthroplasty
Erschienen in: MUSCULOSKELETAL SURGERY | Ausgabe 1/2019
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Purpose
The aim of this study was to assess the reasons of failure of shoulder surface replacement hemiarthroplasty (SRH) and to evaluate the outcome of revision surgery.
Method
The study group included 25 patients (26 shoulders) with failed SRHs. The mean time to revision surgery was 3.6 years. Their functional outcome was evaluated using adjusted Constant–Murley score at mean follow-up of 5.2 years (range 2–16 years).
Result
Most common cause of failure was glenoid erosion (42%) and progressive failure of rotator cuff (31%). Median adjusted Constant–Murley score at mean follow-up of 5.2 years was 51.6. Median adjusted Constant–Murley score in patients who had primary diagnosis of osteoarthritis and had revision performed to anatomic TSA (14 shoulders) was 85 (range 40–100) at mean follow-up of 5 years compared to 36.3 (range 20–66.3) in the remaining patients at 5.4 years, p = 0.00008.
Conclusion
Revision surgery for failed SRH can be technically challenging with variable results. Most common mode of failure was glenoid erosion. Functional outcomes are better in those with revision performed to anatomic TSA.