Clueless About Rotator Cuff Anatomy? Here’s the Basics!
Summary of Rotator Cuff Anatomy
1. Overview
The rotator cuff is a group of four muscles (supraspinatus, infraspinatus, teres minor, subscapularis) and their tendons, crucial for stabilizing the glenohumeral joint.
2. Posterosuperior Cuff
- Supraspinatus: Key for shoulder abduction; most frequently injured tendon.
- Infraspinatus: Facilitates external rotation.
3. Anterior Cuff
- Subscapularis: Major muscle for internal rotation.
4. Tendon Architecture
RC tendon fibers interdigitate and fuse with the joint capsule before inserting on the humeral footprints, emphasizing the importance of footprint anatomy.
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