What question did this study set out to answer?

To investigate the relationship between coracoid morphology and the risk of posterior shoulder instability.

March 2, 2026

Coracoid Morphology and the Risk of Posterior Shoulder Instability: A Magnetic Resonance Imaging Study

Key Points

To investigate the relationship between coracoid morphology and the risk of posterior shoulder instability.
MRI imaging used to analyze coracoid morphology
Comparison of patients undergoing posterior stabilization surgery to those with anterior instability
Evaluation of coracoid characteristics such as CCA, CAL, and ICC
Significant differences in coracoid morphology noted between posterior and anterior surgery groups
Increased CCA, CAL, and ICC linked to posterior instability
Findings suggest lower coracoid may lead to greater humeral head coverage issues

Abstract

Coracoid morphology differs significantly in patients undergoing posterior shoulder stabilization when compared to patients undergoing surgery for anterior instability or a comparison cohort. Increased CCA, increased CAL, and greater ICC are associated with patients undergoing posterior stabilization surgery. These findings suggest that a lower coracoid with increased inferior coverage of the humeral head may contribute to the pathogenesis of posterior instability.

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Cite This Study

Testa et al. (Fri,) studied this question.

synapsesocial.com/papers/69a52e34f1e85e5c73bf1a3a https://doi.org/https://doi.org/10.1177/03635465261421534

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