Study: Catalyst CSR Total Shoulder Improves Accuracy and Precision in Restoring Humeral Anatomy

Catalyst OrthoScience Inc. (Catalyst), a medical device company focused on the upper extremity orthopedics market, has announced the publication of a peer-reviewed study in the Journal of Shoulder and Elbow Arthroplasty that shows positive data around the use of the Catalyst CSR Total Shoulder System. The study demonstrates the use of a bone-sparing, multiplanar osteotomy technique with a nonspherical humeral component— such as the Catalyst CSR system— can improve the accuracy and precision of restoring the anatomic glenohumeral relationship compared to stemmed arthroplasty systems.
 
Highlights of the study include:

• Measurements of the anatomic center of rotation (COR) and the postoperative prosthetic COR were compared in 110 consecutive shoulder arthroplasties performed by a single surgeon. X-rays were measured by two independent observers. The first 55 cases used a third-generation stemmed arthroplasty system and the latter 55 cases used the Catalyst CSR system.
• The average change of the COR was significantly less in the Catalyst group compared to the stemmed group.
• There was an overall 2.5-fold reduction in the number of clinically significant outliers in the Catalyst group compared to the stemmed group—