Suture button placed beneath plate fixation for complex distal clavicle fractures and acromioclavicular joint
Sachin Allahabadi1, Abhinav Janghala1, Utku Kandemir2
1Department of Orthopaedic Surgery, University of California San Francisco, 2550 23Rd St., Building 9, 2nd Floor, San Francisco, CA, 94110, USA.
Abstract:
Patients with complex distal clavicle and acromioclavicular (AC) joint injuries are at risk of loss of reduction, especially when plates are removed postoperatively. The purpose is to review the authors' preferred technique for treatment of distal clavicle and AC joint injuries utilizing combined suture button and plate fixation, aiming to optimize biomechanical strength of fixation and limit loss of reduction after implant removal. Pre-contoured locking plates or hook plates were utilized atop suture buttons to maintain reduction and optimize biomechanical strength. At final follow-up over one year after plate removal and suture button retention in thirteen patients, reduction was maintained to coracoclavicular interval 1.5 ± 1.4 mm less than contralaterally. DASH scores at final follow-up averaged 5.7 ± 2.5 (range: 3.3 - 11.7). Placing suture button fixation prior to and beneath plate fixation in complex AC joint injuries and distal clavicle fractures allows for maintained fixation and prevents loss of reduction after plate removal.
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