Preoperative Evaluation of Transverse Acetabular Ligament Orientation using CT for Total Hip Arthroplasty

Abstract

Background: Orientation of the acetabular component with the transverse acetabular ligament (TAL) to provide optimal anteversion has been reported to reduce dislocation rates. The usefulness of TAL as a landmark is controversial because there are large variations in TAL orientation. We examined anteversion of TAL preoperatively to improve its usefulness.