CORR Insights®: Periacetabular Osteotomy Improves Pain and Function in Patients With Lateral Center-edge Angle Between 18° and 25° but Are These Hips Really Borderline Dysplastic?

摘要

Professor Gunnar Wiberg was the first to suggest that a structural hip abnormality could predispose a patient to develop idiopathic hip osteoarthritis [ ]. Since his original description of the lateral center edge angle (LCEA) in 1939, this single radiographic parameter has become the gold standard to assess acetabular coverage of the femoral head. During the past 80 years, our understanding of the three-dimensional (3-D) shape of the acetabulum and proximal femur has evolved, but physicians continue to depend primarily on the LCEA to assess acetabular development. Other commonly used parameters include the Tönnis acetabular roof angle, the anterior center-edge angle (ACEA) measured on the false profile radiograph of the hip, and more recently, the anterior and posterior wall indices and the femoro-epiphyseal acetabular roof (FEAR) index [ ].