RTSA stands for which procedure?

• A. Rotator Cuff Repair Arthroplasty
• B. Reverse Total Shoulder Arthroplasty
• C. Radial Tunnel Approach
• D. Rib Fracture Stabilization

Answer: (B)

RTSA refers to a shoulder arthroplasty that reverses the normal ball-and-socket arrangement. In this design, a ball is placed on the glenoid side (glenosphere) and a socket on the humeral side, which changes the mechanics so the deltoid can lift the arm effectively even when the rotator cuff is damaged or torn. This configuration commonly restores elevation and function in cuff-tear arthropathy or when a conventional shoulder replacement isn’t feasible. The other options describe different procedures: one implies a rotator cuff repair concept paired with arthroplasty, another is an elbow approach for nerve issues, and the last is stabilization of rib fractures—none of which match the reverse shoulder design.