Definition and reliability of 3D acetabular and global offset measurements from bi-plane X-rays.

ABSTRACT: The importance of the global offset, the sum of femoral and acetabular offset, has been underlined in the literature as a key factor for the functional outcome of total hip arthroplasty (THA). However, the acetabular offset is not defined for bi-plane X-rays, a technology providing 3D measurements of the lower limb and commonly used for patients undergoing THA. The aim of this paper is to introduce a measurement method of the 3D acetabular offset with bi-plane X-rays. Our method combines the use of technical and anatomical coordinate systems. The most appropriate definition will be selected based on the best reliability and measurement error. The consequent reliability of the global offset was also assessed. Twenty-eight patients undergoing primary THA were selected retrospectively. Two op

SUBMITTER: Gasparutto X 

PROVIDER: S-EPMC9834380 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature