The most obvious advantage is bone stock preservation. Aside from the fact you retain the head and neck, near normal proximal femoral loading and the absence of stess shielding combine to enhance bone stock over time. Technically, the surgeon’s goal is to restore near normal anatomy, bypassing problems with offset and leg length inequality. Functionally, this correlates to greater patient satisfaction, and with large bearing minimal risk of dislocation. If revision is required, the surgeon is presented with practically a primary femur to operate on.
Some Assembly Required: Joint Replacement Richard J Friedman, MD Charleston Orthopaedic Associates Charleston, SC