Comparison of shoulder replacement to treat osteoarthritis secondary to instability surgery and primary osteoarthritis: a retrospective controlled study of patient outcomes

International Orthopaedics
Giovanni MerollaGiuseppe Porcellini

Abstract

We hypothesized that osteoarthritis developing after instability surgery is radiographically similar to primary arthritis and that arthroplasty provides comparable outcomes in patients with these two types of osteoarthritis. Patients with osteoarthritis due to instability surgery (group I) and with primary osteoarthritis (group II) were included. Mean follow-up was 52.6 and 41.6 months, respectively. Hemiarthroplasties (HA) were 32% in group I and 27% in group II; total shoulder arthroplasties (TSA) were 68 and 73% respectively. Outcome measures included active shoulder mobility (anterior elevation [AAE], lateral elevation [ALE], external rotation [ER], and internal rotation [IR]), pain, Constant-Murley score, and Simple Shoulder Test. Pre-operative and post-operative radiographs were taken. Glenoid arthritis was assessed by computed tomography. Participants were 19 in the group I (mean age 44.5 years, 12 males, 7 females) and 30 in the group II (mean age 48.2 years, 28 males, 12 females). Both patient groups had pre-operative concentric arthritis. Group II had higher rates of A2 and B1 glenoids (p = 0.003). A longer interval from stabilization to replacement was associated with lower post-operative IR (p = 0.017) and ALE (p = ...Continue Reading

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Citations

Aug 12, 2018·International Orthopaedics·Giovanni MerollaGiuseppe Porcellini
Sep 4, 2018·International Orthopaedics·Philippe ClavertPascal Boileau

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