Abstract
The term "internal impingement" describes the normal physiological contact that occurs between the posterosuperior glenoid and the greater tuberosity in positions of hyperabduction and external rotation. This physiological contact can become symptomatic when repeated overhead motion results in partial articular-sided posterosuperior rotator cuff tears and lesions of the posterosuperior glenoid labrum. The precise pathophysiology involved with the development of symptomatic internal impingement has been debated extensively over the past few decades. However, current literature suggests that symptomatic internal impingement may result from a combination of multiple factors involving repetitive overhead activity, physiological remodeling of the throwing shoulder, posterior capsule contracture, and scapular dyskinesis, among other factors. These can all lead to scapulohumeral hyperangulation and associated pathologic findings. The purpose of this article is to review the relevant anatomy, pathophysiology, diagnosis, and management of symptomatic internal impingement through a critical review of current evidence.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.