Anatomical Double-Bundle Coracoclavicular Reconstruction in Chronic Acromioclavicular Dislocation

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Reconstructive Surgery

Background:

• Chronic acromioclavicular (AC) joint dislocation presents significant functional limitations.
• Surgical reconstruction aims to restore stability and function to the AC joint.

Purpose of the Study:

• To evaluate the clinical and radiological outcomes of anatomical double-bundle coracoclavicular (CC) reconstruction for chronic AC joint dislocation.
• To assess the efficacy of using the coracoacromial (CA) ligament and conjoined tendon in this procedure.

Main Methods:

• Retrospective review of 18 patients undergoing anatomical CC reconstruction for chronic AC joint dislocation.
• Surgical procedures performed between April 2007 and January 2012.
• Evaluation included modified UCLA shoulder rating scale, Constant-Murley score, range of motion, strength, and plain radiographs.

Main Results:

• Mean follow-up of 35.3 months.
• High rate of well-maintained reduction (83.3%) with minimal loss of reduction.
• No significant difference in CC distance between injured and contralateral shoulders postoperatively and at follow-up.
• Good functional outcomes reported with modified UCLA scores and comparable Constant-Murley scores.

Conclusions:

• Anatomical double-bundle CC reconstruction using the CA ligament and conjoined tendon is a reliable surgical method for chronic AC joint dislocation.
• The procedure demonstrates good clinical and radiological outcomes, restoring stability and function.