With modular necks, the stem is streamlined relative to traditional fixed neck implants. PROFEMUR® Z implants simplify stem insertion and minimize soft tissue stretching. The streamlined geometry also allows surgeons to optimize implant positioning based on fit and fixation rather than settling for placement dictated by a fixed neck implant with limited maneuverability. Once properly positioned, surgeons can use PROFEMUR® Z modular necks to equalize leg length, optimize offset and maximize joint stability simultaneously.