Emperion noncemented modular femoral component--can modularity solve any primary total hip replacement problem?

The Emperion femoral component (Smith & Nephew, Memphis, Tenn) is a modern incarnation of the S-ROM femoral component (Depuy, Warsaw, Ind). This fit-and-fill modular design has had great clinical success for more than 20 years. The Emperion can be used to address almost all clinical scenarios in primary total hip replacement (THR). The modularity can uniquely weather difficult proximal femoral deformities encountered during THR, including developmental dysplasia of the hip and slipped capital femoral epiphysis. In addition, the nomenclature attached to this implant has made using the device and its instruments user friendly.