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Imaging Review of Subscapularis Tendon and Rotator Interval Pathology
Zohaib Y Ahmad1, Luis E Diaz2, Frank W Roemer3
1Department of Radiology, Boston Medical Center, Boston University School of Medicine, Boston, MA 02118, USA.
Radiology Research and Practice
|January 24, 2022
Summary
The subscapularis tendon, crucial for shoulder stability, often injures with other rotator cuff tendons. Understanding its anatomy and injury patterns aids diagnosis and surgical repair.
Area of Science:
- Orthopedic Surgery
- Radiology
- Anatomy
Background:
- The subscapularis is the largest rotator cuff muscle, vital for glenohumeral joint stability.
- Subscapularis tendon injuries frequently occur with supraspinatus pathology and can involve the rotator interval, leading to diagnostic challenges ('hidden lesion').
Purpose of the Study:
- To review the anatomy of the subscapularis muscle and tendon.
- To describe magnetic resonance imaging (MRI) patterns of subscapularis tendon injuries.
Main Methods:
- Literature review focusing on subscapularis anatomy and injury patterns.
- Analysis of MRI findings associated with subscapularis tendon pathology.
Main Results:
- Detailed anatomical description of the subscapularis tendon and its relationship with surrounding structures.
- Common MRI findings in isolated and combined subscapularis tendon injuries are presented.
Conclusions:
- Accurate diagnosis of subscapularis tendon injuries, especially those involving the rotator interval, is critical for effective treatment.
- Understanding anatomical relationships and MRI patterns improves the diagnosis and management of complex shoulder injuries.
