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Current Reviews in Musculoskeletal Medicine

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01-12-2019 | Femuroacetabular Impingement | Reverse Shoulder Arthroplasty (E Craig and C Chambers, Section Editors)

Reverse Total Shoulder Arthroplasty: Implant Design Considerations

Authors: Ujash Sheth, Matthew Saltzman

Published in: Current Reviews in Musculoskeletal Medicine | Issue 4/2019

Abstract

Purpose of Review

Our understanding of the reverse total shoulder arthroplasty (RTSA) has grown exponentially since Grammont first introduced his design in 1985. There are a multitude of implant-related variables to consider when performing RTSA. The purpose of this article is to provide a review of these design considerations.

Recent Findings

Current literature demonstrates that the traditional Grammont prosthesis has over 90% survivorship at 10 years. Despite these promising results, there have been concerns raised over the significant rate of scapular notching observed. As a result, the traditional RTSA design has been modified to minimize this complication and maximize impingement-free motion. Modern RTSA designs with a cementless, curved, short-stemmed eccentric onlay humeral component combined with a large, lateralized glenosphere placed in 10° of inferior tilt with > 3.5 mm of inferior overhang have been found to provide excellent results. However, all implant design features must be considered on a case-by-case basis to optimize outcome for each patient.

Summary

Humeral and glenoid implant design variables have evolved as the biomechanics of RTSA have been further elucidated. Consideration of these variables allows the surgeon to maximize joint efficiency, improve impingement-free range of motion, decrease the risk of scapular notching, preserve bone stock, and minimize the risk of instability.

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Title: Reverse Total Shoulder Arthroplasty: Implant Design Considerations
Authors: Ujash Sheth
Matthew Saltzman
Publication date: 01-12-2019
Publisher: Springer US
Keyword: Femuroacetabular Impingement
Published in: Current Reviews in Musculoskeletal Medicine / Issue 4/2019
Electronic ISSN: 1935-9748
DOI: https://doi.org/10.1007/s12178-019-09585-z

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Reverse Total Shoulder Arthroplasty: Implant Design Considerations

Abstract

Purpose of Review

Recent Findings

Summary

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose of Review

Recent Findings

Summary

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