Delayed diagnosis of bilateral posterior shoulder dislocation with reverse Hill-Sachs lesions managed by modified McLaughlin procedure: a case report

Introduction Posterior shoulder dislocations are uncommon and frequently overlooked, particularly when they occur bilaterally. These injuries are typically associated with seizures, electrical trauma, or high-energy mechanisms. Case Presentation We describe a rare case of bilateral posterior glenohumeral dislocations accompanied by bilateral reverse Hill-Sachs lesions and a right osseous Bankart lesion following an epileptic seizure, with a significantly delayed diagnosis. The patient underwent staged modified McLaughlin procedures. Postoperatively, the patient demonstrated substantial improvement, regaining full range of motion with excellent Constant scores, improving from 32 and 34 preoperatively to 90 and 88, respectively. Conclusion This case highlights the importance of early recognition, appropriate imaging, and individualized surgical planning in managing bilateral posterior shoulder dislocations. At 6-month follow-up, the patient achieved full functional recovery with excellent clinical outcomes.