Arthroscopic Bankart Repair With Middle Glenohumeral Ligament Augmentation For The Treatment of Recurrent Anterior Shoulder Instabilities

Abstract

Background: In delayed Bankart lesion cases, the joint capsule and glenoid labrum are severely retracted in chronic cases with numerous recurrent dislocations, which results in insufficient viable soft tissue for capsular plication. We have proposed that labral repair with Middle Glenohumeral ligament (MGHL) augmentation could be done to reconstruct anterior stability. In this study, we report the clinical outcomes of patients who had undergone arthroscopic MGHL augmented repair for anterior stabilization for chronic anterior dislocations. Methods: The study was designed as a retrospective study. Patients who had undergone arthroscopic MGHL augmented labral repair for recurrent anterior shoulder dislocation. Rowe and CONSTANT scores were used for the functional evaluation of the patients. Arthroscopic MGHL augmented labral repair is performed on each patients.The Kolmogorov–Smirnov test was used to determine whether the data related to variables included in the analysis followed a normal distribution pattern. The paired-Samples t-test was used to evaluate data with a normal distribution Results: The mean pre-operative Rowe score was 11,19(±9,19), and the mean pre-operative CONSTANT score was 41,7 (±8,12) The data for post-operative functional assessment were recorded at the 24th month follow- up. The mean Rowe score was 92,43 (±7,14), and the CONSTANT score was 82,60 (±11,03). There was a significant improvement in CONSTANT and Rowe scores (p<0,005). We had two cases of redislocations. Conclusion: MGHL augmentation technique provided a low rate of redislocation and satisfactory functional outcomes. We recommend this technique to surgeons who perform arthroscopic shoulder instability surgeries in cases with degenerated joint capsule and labrum.