Results of Open Bankart Surgery for Recurrent Anterior Shoulder Dislocation with Glenoid Bone Defect and Concomitant Hill-Sachs Lesion

Document Type : RESEARCH PAPER


Bone and Joint Reconstruction Research Center, Department of Orthopedic Surgery, Shafa Orthopedic Hospital, Iran university of medical Sciences, Tehran, Iran


Background: Open Bankart surgery is the main treatment procedure in patients with recurrent anterior shoulder dislocation, especially in cases with glenoid bone defect. The goal of this study was to determine the outcomes after open Bankart surgery in cases of recurrent anterior shoulder dislocation with glenoid bone defects and concomitant Hill-Sachs lesions.
Methods: Between 2006 and 2010, 89 patients with recurrent anterior shoulder dislocation and concomitant glenoid bone defects (10-30%) and Hill-Sachs lesions undergoing open Bankart surgery were reviewed. The mean follow-up after surgery was 7 years (5.5-9.5 years). The recurrence rate as well as the degree of shoulder pain and daily activity level was determined subjectively based on the visual analogue scale (VAS) and activity daily living scale (ADLs). Shoulder range of motion (ROM) in abduction and external rotation was compared with contralateral side; and finally, the American shoulder and elbow score (ASES) and constant-Murley score (CMS) were calculated.
Results: Over 7 years of follow-up, a total of 15 patients (16.8%) undergoing surgery were found to have instability (3 patients (3.3%) with dislocation and 12 patients with (13.4%) subluxation). Patients with postsurgical instability had significantly larger glenoid bone defects (P=0.0001) and Hill-Sachs lesions (P=0.019) compared to those without instability. The mean loss of forward flexion compared with the normal contralateral side was 4º while the mean loss of external rotation between both sides was 5º. At the final visit, the average VAS was 0.4 (out of 10); ADL was 28.97 (range: 25-30); ASES was 96.1(range: 78.3-100); and the mean CMS value was 93.9(range: 82-100).
Conclusion: Open Bankart surgery with anteroinferior capsular shift for recurrent anterior shoulder dislocation with up to 30% glenoid bone defect and Hill-Sachs lesion provided desirable results in terms of shoulder function and recurrence rate. Bankart surgery is a successful and practical option in these patients and can be considered as an alternative to other procedures.
Level of evidence: IV


Main Subjects

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