USF-LVHN SELECT

Lesser tuberosity osteotomy and subscapularis tenotomy repair techniques during total shoulder arthroplasty: A meta-analysis of cadaveric studies.

Publication/Presentation Date

12-1-2016

Abstract

BACKGROUND: Numerous techniques have been used to mobilize and repair the subscapularis tendon during total shoulder arthroplasty. The purpose of this study is to perform a detailed comparison of subscapularis tenotomy and lesser tuberosity osteotomy repairs during total shoulder arthroplasty.

METHODS: Two independent reviewers searched two databases (PubMed and the Cochrane Library) to find cadaveric studies comparing the biomechanical strength of various subscapularis repair techniques following total shoulder arthroplasty. Articles that compared at least two repair techniques with similar biomechanical methods were included.

FINDINGS: An initial literature search resulted in 145 studies. A title and abstract review resulted in five studies which analyzed outcomes of subscapularis tenotomy (total n=29) or lesser tuberosity osteotomy using a single- or dual-row suture technique (total n=46). Load to failure was significantly higher in the lesser tuberosity osteotomy group (M 443, SD 231N) than the tenotomy group (M 350, SD 113N) (p=0.047). Tenotomy (n=19) and lesser tuberosity osteotomy (n=31) had average cyclic displacements of 1.7mm (SD 1.3) and 2.1mm (SD 1.6), respectively (p=0.34). Mode of failure was significantly different between the two groups (p

INTERPRETATION: Based on current biomechanical data, lesser tuberosity osteotomy is a stronger repair than a subscapularis tenotomy at "time-zero" in terms of load to failure. However, cyclic displacement did not differ statistically between the two techniques.

Volume

40

First Page

33

Last Page

36

ISSN

1879-1271

Disciplines

Medical Education | Medicine and Health Sciences

PubMedID

27816022

Department(s)

USF-LVHN SELECT Program, USF-LVHN SELECT Program Students

Document Type

Article

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