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Review
. 2021 Dec 30;2(2):131-134.
doi: 10.1016/j.xrrt.2021.11.004. eCollection 2022 May.

Shoulder strength outcomes after reverse total shoulder arthroplasty: a systematic review and descriptive synthesis

Fletcher R Preuss  1 , Stephanie K Eble  2 , Annalise M Peebles  3 , Antonia Osuna-Garcia  4 , Capt Matthew T Provencher  3   5
Affiliations
Review

Shoulder strength outcomes after reverse total shoulder arthroplasty: a systematic review and descriptive synthesis

Fletcher R Preuss et al. JSES Rev Rep Tech. .

Abstract

Hypothesis and background: There is no differences in abduction, internal rotation, or external rotation strength after reverse total shoulder arthroplasty (rTSA) with or without subscapularis repair. Repair of the subscapularis can be effective in the setting of rTSA. However, consensus has yet to be reached on whether postoperative strength after rTSA differs based on subscapularis management. The purpose of this review is to evaluate shoulder strength outcomes after rTSA with and without subscapularis tendon repair.

Methods: A comprehensive literature review was conducted using the key terms "subscapularis" AND "reverse total shoulder arthroplasty" AND "muscle strength" in PubMed, Embase, Web of Science, Cochrane Reviews and Trials, and Scopus. Original, English-language studies evaluating shoulder strength outcomes after rTSA published from January 1, 2000, to present were evaluated. Strength outcomes reported included abduction strength (kg) and internal rotation strength (kg) using an electric spring balance and external rotation strength (lb) using a handheld dynamometer. Heterogeneity of data in the included studies did not allow for meta-analysis.

Resuts: The search yielded 4253 unique results, which were screened for inclusion according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Two articles met eligibility criteria and were included in the final full-text review. A total of 267 shoulders were represented, 111 with subscapularis repair and 156 without subscapularis repair. No significant differences in abduction (P = .39), internal rotation (P = .09), and external rotation (P = .463) strength were observed between subscapularis repair and nonrepair groups.

Conclusion: There were no differences in abduction, internal rotation, or external rotation strength after rTSA with or without subscapularis repair. The literature on postoperative strength outcomes after rTSA is limited, and further study in this area is warranted.

Keywords: Postoperative outcomes; Range of motion; Reverse total shoulder arthroplasty; Strength; Subscapularis; rTSA.

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Figures

Figure 1
Figure 1
PRISMA flow diagram.
See this image and copyright information in PMC

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