High and low performers in internal rotation after reverse total shoulder arthroplasty: a biplane fluoroscopic study.

ABSTRACT:

Background

Internal rotation in adduction is often limited after reverse total shoulder arthroplasty (rTSA), but the origins of this functional deficit are unclear. Few studies have directly compared individuals who can and cannot perform internal rotation in adduction. Little data on underlying 3D humerothoracic, scapulothoracic, and glenohumeral joint relationships in these patients are available.

Methods

Individuals >1-year postoperative to rTSA were imaged with biplane fluoroscopy in resting neutral and internal rotation in adduction poses. Subjects could either perform internal rotation in adduction with their hand at T12 or higher (high, N = 7), or below the hip pocket (low, N = 8). Demographics, the American Shoulder and Elbow Surgeons score, Simple Shoulder Test, and

SUBMITTER: Sulkar HJ 

PROVIDER: S-EPMC10023281 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature