Is premorbid scapulohumeral rhythm restored with anatomic or reverse shoulder arthroplasty for cuff-intact osteoarthritis? An in-vivo dynamic radiography study.

ABSTRACT:

Background

Anatomic total shoulder arthroplasty (aTSA) and reverse total shoulder arthroplasty (rTSA) are both treatment options for advanced glenohumeral osteoarthritis with an intact rotator cuff; however, decision making is controversial, especially among younger active patients. Restoring native shoulder kinematics may be an important consideration for implant longevity and ultimate shoulder function, but in-vivo assessment and comparisons have been historically difficult. The purpose of this study was to compare scapulohumeral rhythm (SHR) between aTSA and rTSA when performed for patients with cuff-intact osteoarthritis and compare these with preoperative values and normal controls.

Methods

A retrospective analysis was performed on 71 shoulders that underwent art

SUBMITTER: Hussain ZB 

PROVIDER: S-EPMC12828192 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature