ICJR Interviews: Cup Placement Is More than Aiming for a Safe Zone

    A growing body of orthopaedic literature has called into question the value of acetabular cup placement in the Lewinnek “safe zone” as a means of reducing hip dislocation after total hip arthroplasty.

    A study from the Rubin Institute for Advanced Orthopedics at Sinai Hospital in Baltimore, Maryland, is adding to this literature with an evaluation of hip range of motion to impingement in 10 healthy volunteer subjects.

    As Randa K. Elmallah, MD, told ICJR, the study showed that pelvic tilt, stem version, and the patient’s unique anatomy need to be taken into consideration when planning cup placement.

    Click the image above to hear Dr. Elmallah discuss the methodology, findings, and implications of the study, “Effects of Pelvic Tilt and Stem Anteversion on Hip Range of Motion to Impingement” (Poster 088), which was presented at the 2016 Annual Meeting of the American Academy of Orthopaedic Surgeons in Orlando.

    Producer: Henrik B. Pedersen, MD; Director: Michael Bugera; Post Production: Charles J. Maynard