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Type 4 Acromioclavicular Joint Separation Reconstruction With Suspensory Fixation, Allograft, and Suture
Omar Protzuk1, Chilan Leite1, Nathan Sherman1
1Department of Orthopaedic Surgery, Harvard, Mass General Brigham, Brigham & Women's Hospital, Boston, Massachusetts, USA.
This study details an arthroscopic surgery for severe acromioclavicular (AC) joint separation, using suspensory fixation and allograft reconstruction. The technique effectively restored painless shoulder function in a young athlete.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Arthroscopy
Background:
- Acromioclavicular (AC) joint separations are common shoulder injuries, particularly in athletes.
- High-grade AC joint injuries (Type 4) often require surgical intervention for optimal outcomes.
- Conservative treatment may fail for severe AC joint separations, necessitating surgical repair.
Purpose of the Study:
- To describe and evaluate an arthroscopic-assisted surgical technique for Type 4 AC joint separation.
- To assess the efficacy of combined suspensory fixation, allograft ligament reconstruction, and suture augmentation.
- To report the functional recovery of a young athlete following this surgical procedure.
Main Methods:
- The procedure involved arthroscopic evaluation followed by open reduction and fixation of the distal clavicle.
- Reconstruction utilized a semitendinosus allograft with suspensory fixation and suture augmentation.
- The technique focused on anatomic positioning and secure fixation of the AC joint.
Main Results:
- The patient achieved pain-free daily living and full range of motion within 5 months.
- Returning strength allowed for a return to sports-specific activities.
- The surgical reconstruction successfully restored shoulder function.
Conclusions:
- Arthroscopic-assisted reconstruction is an effective treatment for Type 4 AC joint separations.
- The combined technique of suspensory fixation and allograft reconstruction yields good clinical outcomes.
- This approach facilitates a return to painless, functional use of the affected extremity.
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