Effect of combined version on impingement-free rotational range-of-motion in three different implant types in reverse shoulder arthroplasty.

8 A retrospective review of patients who underwent rTSA with 0° versus 30° of humeral retroversion found that there were no significant differences between the 0° and 30° groups in ER motion, American Shoulder and Elbow Surgeons (ASES) score, visual analog scale, and Simple Shoulder test, with a nonsignificant trend toward increased ER strength in the 30° group. 7 A recent randomized clinical trial of 66 patients undergoing rTSA for rotator cuff tear arthropathy randomized to either 0° or 30° of humeral component retroversion found no clinically notable differences in any outcome measure, including ER and IR at the side and 90° of abduction. 24 One simulation study, similar to the present study, evaluated glenoid component version in isolation.

also in 5,406 other papers