Posterior Shoulder Dislocation with Engaging Reverse Hill-Sachs Lesion: A Retrospective Study of Ten Patients Treated with Arthroscopy or Open Reduction and Stabilization

This study compares two surgical techniques used to treat patients with posterior shoulder dislocation with an engaging reverse Hill-Sachs lesion. We assessed ten patients who were treated at the Surgical Orthopedic and Traumatological Institute (ICOT) of Latina and the Clinic of Orthopedic and Traumatological Surgery of the ASST Sette Laghi of Varese between 2016 and 2019. The patients were divided into two groups: the first comprising six patients who underwent the open surgery McLaughlin procedure as modified by Neer, the second including four patients who underwent the arthroscopic McLaughlin procedure. All patients received postoperative rehabilitation to achieve the best possible functional recovery of the affected shoulder. We then assessed the shoulder range of motion, the pain level, and the impact on quality of life with four tests: the Constant Scale, the Simple Shoulder Test (SST), the OXFORD Scale, and The University of California-Los Angeles (UCLA) Shoulder Scale. The mean scores of the first group were: 81.3 +/- 9.8 SD (Constant Scale), 10.8 +/- 1.06 SD (SST), 42.5 +/- 5.4 SD (Oxford Scale), 30.8 +/- 3.02 SD (UCLA Shoulder Scale); we calculated the following mean scores in the second group: 80.25 +/- 4.1 SD (Constant Scale), 11.5 +/- 0.8 SD (SST), 42 +/- 4.06 SD (Oxford Scale), 32 +/- 2.9 SD (UCLA Shoulder Scale). We found no significant differences between the two groups.