Contributions of capsular releases to femoral exposure in total hip arthroplasty via the direct anterior approach.

Background: In total hip arthroplasty via the direct anterior approach, appropriate exposure is critical to allow preparation of the femur. The objective of this study was to explore the optimal soft tissue releases needed to allow broaching of the femur through a combination of experimental tests and computer simulations.

Methods: Fourteen full-body cadaveric specimens were included in this study.

How Flat Is the Tibial Osteotomy in Total Knee Arthroplasty?

Background: Cementless total knee arthroplasty has been developed to decrease the incidence of failure in younger and more active patients. However, failures are still more common in cementless versus cemented components. It is hypothesized that this is triggered by incomplete bone-tray contact.