Hip malformation is a very common finding in young patients scheduled for total hip arthroplasty

Karimi, Dennis; Kallemose, Thomas; Troelsen, Anders; Klit, Jakob

doi:10.1007/s00402-018-2900-6

Cited by 9 publications

(1 citation statement)

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“…The orientation of the acetabulum in the horizontal plane is anatomically called version [1], [2]. Anatomical orientation of the acetabulum is around 20° anteversion [3], [4]. In cases where the version is posterior to the horizontal plane, the acetabulum is retroverted [5].…”

Section: Introductionmentioning

confidence: 99%

Analysis of acetabular version: Retroversion prevalence, age, side and gender correlations

Klasan

Néri²,

Sommer³

et al. 2019

Journal of Orthopaedic Translation

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Introduction Studies using conventional radiographical signs and computerized tomography (CT) for retroversion of the acetabulum have reported a prevalence of up to 25%. The purpose of this study was to provide a detailed report on acetabular version, gender, age and side differences in a large cohort. Materials and methods A total of 404 patients receiving a whole-body CT scan, aged between 16 and 40 years, have been included in the study. The measurement was performed in the transversal plane on three levels: cranial, central and caudal. Results The retroverted acetabulum on all three levels had a prevalence of 0.25% (95% confidence interval 0–0.7%). The average central anteversion in men was 16.46° (±4.42) and that in women was 19.31° (±5.04) (p < 0.001). Version increases with age, but a cluster analysis showed this to be a trend (p = 0.068). Conclusion Women have a higher average acetabular version than men. Retroversion in a young adult population has a low prevalence when measured with conventional CT. About a tenth of the population has a significantly different contralateral acetabular version. The translational potential of this article Global acetabular retroversion has a much lower prevalence than previously reported.

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