Clinical Evaluation of Reverse Versus Anatomic Shoulder Arthroplasty Techniques in the Treatment of Osteoarthritis

"Patient will undergo a RTSA as per standard technique. It uses a stemmed metal humeral component attached to the glenoid and the shallow glenoid component attached to the humerus. Pre-operative CT imaging and surgical planning software based on pre-operative CT scans will be used in each case to determine the degree of eccentric (high side) anterior reaming to within \< 10 degrees of neutral glenoid version. Standard instruments including a spherical burr and power reamers will be used to achieve this."

Patients will undergo standard glenoid preparation and implantation of a TSA. It uses a stemmed metal humeral component to replace the arthritic head of humerus and a shallow polyethylene glenoid component to replace the arthritic glenoid surface. The degree of anterior- reaming will be based on pre-operative CT scan assessment and templating software with the goal of correcting glenoid retroversion to within 10 degrees of neutral version.