Hill-Sachs lesion

A Hill-Sachs lesion is a bony injury that occurs in the shoulder joint, specifically affecting the humeral head.

This condition commonly arises following an anterior shoulder dislocation, where the humeral head impacts against the glenoid cavity of the scapula.

As a result, an indentation or fracture develops on the posterior-lateral aspect of the humeral head.

This defect can compromise the stability of the shoulder joint, leading to recurrent dislocations or subluxations if not properly managed.

Hill-Sachs lesions are most often detected through imaging techniques such as X-ray, MRI, or CT scans, which can reveal the extent of the bony damage and its impact on surrounding structures.

Clinically, patients may experience pain, reduced range of motion, and a sensation of instability in the shoulder.

Treatment may include physical therapy to strengthen the surrounding musculature, or surgical intervention to repair or fill the lesion, depending on its size and the degree of instability it causes.

Understanding the biomechanics of a Hill-Sachs lesion is crucial for effective management and prevention of further shoulder injuries.

This condition highlights the complexity of shoulder joint dynamics and the importance of maintaining joint integrity through both conservative and surgical strategies.