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The Bone & Joint Journal
Vol. 95-B, Issue 9 | Pages 1232 - 1238
1 Sep 2013
Wiater BP Boone CR Koueiter DM Wiater JM

Some surgeons are reluctant to perform a reverse total shoulder arthroplasty (RTSA) on both shoulders because of concerns regarding difficulty with activities of daily living post-operatively as a result of limited rotation of the shoulders. Nevertheless, we hypothesised that outcomes and patient satisfaction following bilateral RTSA would be comparable to those following unilateral RTSA. A single-surgeon RTSA registry was reviewed for patients who underwent bilateral staged RTSA with a minimum follow-up of two years. A unilateral RTSA matched control was selected for each shoulder in those patients undergoing bilateral procedures. The Constant–Murley score (CMS), American Shoulder and Elbow Surgeons (ASES) score, Subjective Shoulder Values (SSV), visual analogue scale (VAS) for pain, range of movement and strength were measured pre- and post-operatively. The mean CMS, ASES, SSV, VAS scores, strength and active forward elevation were significantly improved (all p < 0.01) following each operation in those undergoing bilateral procedures. The mean active external rotation (p = 0.63 and p = 0.19) and internal rotation (p = 0.77 and p = 0.24) were not significantly improved. The improvement in the mean ASES score after the first RTSA was greater than the improvement in its control group (p = 0.0039). The improvement in the mean CMS, ASES scores and active forward elevation was significantly less after the second RTSA than in its control group (p = 0.0244, p = 0.0183, and p = 0.0280, respectively). Pain relief and function significantly improved after each RTSA in those undergoing a bilateral procedure.

Bilateral RTSA is thus a reasonable form of treatment for patients with severe bilateral rotator cuff deficiency, although inferior results may be seen after the second procedure compared with the first.

Cite this article: Bone Joint J 2013;95-B:1232–8.