title: The role of femoral neck anteversion in the development of osteoarthritis in dysplastic hips.
abstract: There have been several studies examining the association between the morphological characteristics seen in acetabular dysplasia and the incidence of the osteoarthritis (OA). However, most studies focus mainly on acetabular morphological analysis, and few studies have scrutinised the effect of femoral morphology. In this study we enrolled 36 patients with bilateral acetabular dysplasia and early or mid-stage OA in one hip and no OA in the contralateral hip. CT scans were performed from the iliac crest to 2 cm inferior to the tibial tuberosity, and the morphological characteristics of both acetabulum and femur were studied. In addition, 200 hips in 100 healthy volunteer Chinese adults formed a control group. The results showed that the dysplastic group with OA had a significantly larger femoral neck anteversion and a significantly shorter abductor lever arm than both the dysplastic group without OA and the controls. Femoral neck anteversion had a significant negative correlation with the length of the abductor lever arm and we conclude that it may contribute to the development of OA in dysplastic hips.
authors.affiliation: Shanghai No. 9th People's Hospital, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
authors.forename: H
authors.initials: H
authors.lastname: Li
authors.affiliation: Shanghai No. 9th People's Hospital, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Orthopaedics, Rush University Medical Center, Chicago, Illinois 60612, USA.
authors.forename: J K
authors.initials: JK
authors.lastname: Oni
authors.affiliation: Shanghai No. 9th People's Hospital, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
authors.forename: X
authors.initials: X
authors.lastname: Qu
authors.affiliation: Department of Biochemistry, Rush University Medical Center, Chicago, Illinois 60612, USA.
authors.forename: T
authors.initials: T
authors.lastname: Li
authors.affiliation: Shanghai No. 9th People's Hospital, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Zeng
authors.affiliation: Shanghai No. 9th People's Hospital, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
authors.forename: F
authors.initials: F
authors.lastname: Liu
authors.affiliation: Shanghai No. 9th People's Hospital, Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
authors.forename: Z
authors.initials: Z
authors.lastname: Zhu
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D005272:Femur Neck / Q000002:abnormalities*; D006617:Hip Dislocation / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000209:etiology*; D014057:Tomography, X-Ray Computed
keywords: Osteoarthritis; Acetabular dysplasia; Morphology; Anteversion; CT scan