Impact of limb positioning on femoral nerve tension during minimally invasive anterolateral approach in total hip arthroplasty: a cadaveric study

The changes in spring length indicated that the femoral nerve tension progressively increased by more than 70% from hip dislocation to femur elevation with retractors. We directly demonstrated that tension on the femoral nerve increased in the modified Watson-Jones approach. These findings may contribute to recommendations regarding the surgical procedure.