The association between periacetabular osteotomy reorientation and hip joint reaction forces in two subgroups of acetabular dysplasia.

ABSTRACT: Acetabular dysplasia is primarily characterized by an altered acetabular geometry that results in deficient coverage of the femoral head, and is a known cause of hip osteoarthritis. Periacetabular osteotomy (PAO) is a surgical reorientation of the acetabulum to normalize coverage, yet its effect on joint loading is unknown. Our objective was to establish how PAO, simulated with a musculoskeletal model and probabilistic analysis, alters hip joint reaction forces (JRF) in two representative patients of two different acetabular dysplasia subgroups: anterolateral and posterolateral coverage deficiencies. PAO reorientation was simulated within the musculoskeletal model by adding three surgical degrees of freedom to the acetabulum relative to the pelvis (acetabular adduction, acetabular extensio

SUBMITTER: Gaffney BMM 

PROVIDER: S-EPMC6930321 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature