Henry Ford Macomb Hospital, USA
Title: The Affect of Humeral Inclination on Post-Operative Range of Motion Following Reverse Shoulder Arthroplasty
Dr. Bishai specializes in arthroscopic surgery of the shoulder, knee and hip as well as shoulder and knee replacements and reconstructions. Dr. Bishai received both Bachelor's and Master's degrees in science at Michigan State University. He received his Doctor of Osteopathy from Michigan State University College of Osteopathic Medicine in 2001, Orthopaedic Surgery residency at Henry Ford Macomb Hospital, followed by an Orthopaedic Sports Medicine Fellowship at Plancher Orthopaedics and Sports Medicine in New York, NY. Dr. Bishai has published numerous papers in the orthopaedic literature and has spoken at multiple national and international orthopaedic meetings. He also serves as an Associate Master Instructor for the Arthroscopy Association of North America (AANA) teaching other orthopaedic surgeons arthroscopic skills. Dr. Bishai is a Fellow of the American Osteopathic Academy of Orthopedics (FAOAO). He is an Assistant Professor for the Michigan State University College of Osteopathic Medicine as well as Oakland University William Beaumont Hospital School of Medicine. He is also a Professor for the Detroit Medical Center Sports Medicine Fellowship. He is the Past-President for the American Osteopathic Academy of Orthopedics Sports Section and the Past-President of the Detroit Academy of Orthopaedic Surgery, both 2-year terms.
Reverse total shoulder arthroplasty has gained increasing popularity over the past several years. It has become a reliable surgery for patients with significant glenohumeral arthritis without a rotator cuff, and an intact deltoid. Expected outcomes from a reverse total shoulder arthroplasty are decreased pain, but post-operative range of motion is unpredictable. Based off outcomes in our practice, we hypothesized that humeral inclination in various implants, including a 155 degree and 147-degree neck shaft angle, would affect post-operative range of motion. We retrospectively reviewed 27 patients, 15 patients with a155 stem and 12 patients with a 147 stem. There was no difference in patient age at time of surgery or type of medical comorbidities. We chose to focus on forward flexion range of motion. We found that patients with the 155-stem had a on average a 53-degree improvement in forward flexion compared to their preoperative range of motion. The patients with the 147-stem had 40-degree improvement in range of motion. In summary, patients with the 155 implants had better post-operative forward flexion when compared to the 145 stems.