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Type IV acromioclavicular joint dislocation associated with a mid-shaft clavicle malunion
Khalid D Mohammed1, Danielle Stachiw1, Alex A Malone1
1Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago, Christchurch Hospital, Christchurch, 8140, New Zealand.
A malunited clavicle fracture and chronic acromioclavicular (AC) joint dislocation were successfully treated with surgery. This case highlights effective management for complex shoulder injuries.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Traumatology
Background:
- Combined clavicle fractures and acromioclavicular (AC) joint injuries are complex orthopedic conditions.
- Delayed diagnosis of AC joint dislocations can lead to chronic instability and pain.
- Conservative management of clavicle fractures may not address concurrent AC joint pathology.
Observation:
- A patient presented 25 months after a mountain bike accident with a malunited clavicle fracture and undiagnosed Type IV AC joint dislocation.
- The initial injury was managed conservatively for the clavicle fracture, but the AC joint injury was missed.
- Persistent shoulder pain and disability prompted a re-evaluation and surgical intervention.
Findings:
- Surgical treatment involved clavicle osteotomy and AC joint stabilization.
- The patient's clinical details, surgical procedure, and outcomes were documented.
- Successful surgical management addressed both the clavicle malunion and chronic AC joint dislocation.
Implications:
- This case demonstrates the importance of thorough evaluation for combined injuries in shoulder trauma.
- Surgical correction can effectively restore function in cases of malunited clavicle fractures with chronic AC joint instability.
- Optimal treatment strategies for combined clavicle and AC joint injuries require prompt and accurate diagnosis.
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