Which of the following is a feature of the Univers II and Apex TSA Stems?

• A. 125-140 inclination variability
• B. 90-120 inclination variability
• C. Fixed 135-degree inclination
• D. No inclination variability

Answer: (B)

The idea being tested is that these shoulder stems are designed with adjustable neck inclination to fit different patient anatomies. The Univers II and Apex TSA stems use a modular neck that allows the surgeon to select an inclination within a 90–120-degree range. This variability lets you tailor the neck–shaft angle to restore proper humeral offset and soft-tissue tension, which in turn helps optimize deltoid function, range of motion, and reduce impingement or instability. It isn’t fixed at 135 degrees, and it isn’t a complete lack of variability, nor is the range limited to 125–140 degrees in this design.