Which of the following describes the second offset method used by Synergy?

• A. Constant (Static) neck length with variable head lengths
• B. High Offset Neck Length (Medialized Neck)
• C. Increased head offset
• D. Adjustable neck angle

Answer: (A)

The main idea here is how offset is adjusted in a hip replacement. Offset is how far the center of the femoral head sits from the femur’s axis, which affects hip abductor mechanics and soft-tissue tension. The second offset method used by Synergy keeps the neck length constant and changes offset by using head-length options. In other words, you swap head components of different lengths while leaving the neck geometry alone, so the head sits farther or closer from the femur without altering neck length or leg length. This lets you precisely restore natural biomechanics with minimal changes to other aspects of the reconstruction.

Other approaches would change offset by altering neck length (changing the neck geometry and potentially leg length) or by adjusting the neck angle, which affects alignment rather than simply shifting the head’s lateral position.