How Do Non-Modular Femoral Necks Compare with Modular Necks?

    Joshua T. Carothers, MD, admits that proximal femoral neck-stem modularity provides a certain level of comfort for orthopaedic surgeons performing total hip arthroplasty (THA): They know they’ll be able to adjust the implant to more closely reconstruct a patient’s anatomy and improve stability – something they can’t do with non-modular femoral necks.

    However, serious concerns about modular femoral necks, such as the risk of metallosis and fracture at the junction, have raised questions about the advisability of continuing to use these implants, regardless of the reported benefits.

    With that in mind, Dr. Carothers and his partners at New Mexico Orthopaedics in Albuquerque wanted to determine how closely non-modular implants could have mimicked the head center of more than 400 consecutive THAs in which a modular neck was used.

    What did they find: Is the modular neck really the better option? Click the image above to hear Dr. Carothers describe the study and its findings.

    Producer: Michael Szuch; Director and Post Production: Michael Bugera


    Carothers J, Archibeck M, Tripuraneni K. Modular versus non-modular femoral necks for primary total hip arthroplasty. Presented at the 2nd Annual Pan Pacific Orthopaedic Congress, July 22-25, 2015, Kona, Hawaii.