Glenohumeral Dislocation With Engaging Hill-Sachs Lesion
The Journal of Orthopaedic and Sports Physical Therapy
|January 2, 2018
Summary
A military cadet sustained an anterior shoulder dislocation with a large Hill-Sachs lesion after an obstacle course injury. Imaging confirmed the significant bone defect, highlighting the severity of the traumatic shoulder injury.
Area of Science:
- Orthopedics
- Sports Medicine
- Radiology
Background:
- Traumatic shoulder injuries are common in athletes and military personnel.
- Anterior glenohumeral joint dislocation can lead to significant bone loss and instability.
- Hill-Sachs lesions are a common consequence of shoulder dislocations, impacting joint stability.
Observation:
- A 20-year-old military cadet experienced a left shoulder injury during an obstacle course, landing with the arm abducted and externally rotated.
- Emergency department examination revealed an anterior dislocation of the glenohumeral joint.
- Radiographs demonstrated a large Hill-Sachs lesion impinging on the glenoid.
Findings:
- Noncontrast magnetic resonance imaging (MRI) and computed tomography (CT) scans corroborated the presence of a substantial Hill-Sachs lesion.
- The imaging findings indicated a significant defect on the humeral head, consistent with a major traumatic event.
- The size and wedged nature of the lesion suggest a high-energy impact and potential for recurrent instability.
Implications:
- Accurate diagnosis and characterization of Hill-Sachs lesions are crucial for effective treatment planning.
- The presence of a large Hill-Sachs lesion may necessitate surgical intervention to restore shoulder stability.
- Understanding the mechanism of injury and lesion characteristics aids in predicting patient outcomes and rehabilitation strategies.
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