Is it possible to have both 135 and 155 options in a single Univers II stem body?

• A. No
• B. Yes
• C. Only 135
• D. Only 155

Answer: (B)

The idea being tested is how modular stem systems allow different neck geometries without changing the whole stem. The Univers II stem body is designed to accept interchangeable neck components, so you can use either 135-degree or 155-degree neck configurations with the same stem base. This means both options are available within the same stem family, and the surgeon selects the neck angle that best fits the patient’s anatomy during the procedure. This flexibility helps adjust offset, leg length, and soft-tissue tension while aiming to minimize impingement. So, it is possible to have both neck-angle options associated with the Univers II stem system, chosen as needed for the case.