Arthroscopic reconstruction of acute acromioclavicular joint disruption using dog-bone button construct: A prospective study

Abstract

IntroductionInjuries to the acromioclavicular joint (AC) are not uncommon accounting for 9% of all shoulder injuries. Surgical management is the mainstay of treatment in severe injuries. Numerous surgical techniques have been described in the literature with variable results. Arthroscopic stabilization using a suspensory fixation is one of the most commonly performed procedure. Current study was done to evaluate the functional and radiological results of arthroscopic acromioclavicular joint reconstruction using dog bone button, a special type of suspensory fixation. Materials and methodsOur study included 14 cases of Rockwood type III and V acute AC joint disruptions. A thorough clinico-radiological evaluation was done preoperatively including a Zanca view and compared with the contralateral side. All patients underwent arthroscopic acromioclavicular joint reconstruction using dog bone button. Radiological and functional results were studied during follow up at 6 weeks, 3 months and 6 months. Functional results were assessed using DASH (Disabilities of the Arm, Shoulder and Hand) score. ResultsThe mean pre-operative coracoclavicular (CC) distance was 16.11 mm with SD ± 1.94 and mean post-operative CC distance was 10.76 mm with SD of ±2.76. Mean DASH scores during follow up were 60, 9.71 and 0.36 at 6 weeks, 3 months and 6 months respectively. There was a significant difference in the pre and post-operative CC distance and DASH t scores (P < 0.001). ConclusionOur study results infer that arthroscopic AC joint reconstruction using dog bone button construct in acute cases provides good functional and radiological results. No significant postoperative complications were associated with the same procedure.