Hip geometric parameters are associated with radiographic and clinical hip osteoarthritis: findings from a cross-sectional study in UK Biobank

SV Heppenstall , Raja Ebsim, Fiona Saunders, Claudia Lindner, Jenny Gregory, R.M. Aspden, Nicholas C Harvey, Timothy F. Cootes, Jon H. Tobias, Monika Frysz, Benjamin G Faber* (Corresponding Author)

*Corresponding author for this work

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Abstract

Objectives
To examine the extent to which geometric parameters derived from dual-energy x-ray absorptiometry (DXA) scans in the UK Biobank study are related to hip osteoarthritis (HOA) independently of sex, age and body size.
Design
Femoral neck width (FNW), diameter of the femoral head (DFH) and hip axis length (HAL) were derived automatically from left hip DXA scans in UK Biobank using outline points placed around the hip by a machine-learning program. Correlations were calculated between geometric parameters, age, height, and weight. Logistic regression was used to examine the relationship of geometric parameters with radiographic hip osteoarthritis (radiographic HOA), and hospital diagnosed HOA (HESOA), and Cox proportional hazards model to evaluate the relationship with total hip replacement (THR). Analyses were adjusted for sex, age, height, weight, and geometric parameters.
Results
Complete data were available for 40,312 participants. In age and sex-adjusted analyses, FNW, HAL and DFH were all related to increased risk of radiographic HOA. In a model adjusted for age, sex, height and weight, both FNW and HAL retained independent relationships with radiographic HOA [FNW: OR 2.38 (2.18-2.59), HAL: 1.25 (1.15-1.36)], while DFH was now protective [0.55 (0.50-0.61)]. Only FNW was independently related to HESOA [2.20 (1.80-
2.68)] and THR [HR 2.51 (1.89-3.32)].
Conclusion
Greater FNW and HAL were independently related to an increased risk of radiographic HOA, whereas greater DFH appeared to be protective. Greater FNW was independently associated with HESOA and THR. These results suggest DXA-derived geometric parameters, particularly FNW, could help determine HOA and THR risk.
Original languageEnglish
Pages (from-to)1627-1635
Number of pages9
JournalOsteoarthritis and Cartilage
Volume31
Issue number12
Early online date11 Sept 2023
DOIs
Publication statusPublished - Dec 2023

Bibliographical note

Acknowledgements:
This work has been conducted using the UK Biobank resource, access application 17295.

Funding
SVH was a self-funded undergraduate student for this work. RE, MF, FS are supported, and this work is funded by a Wellcome Trust collaborative award (reference number 209233). This research was funded in whole, or in part, by the Wellcome Trust [Grant number 223267/Z/21/Z]. For the purpose of open access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.

CL was funded by a Sir Henry Dale Fellowship jointly funded by the Wellcome Trust and the Royal Society (223267/Z/21/Z). NCH acknowledges support from the MRC and NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton. BGF, MF & JHT work in the MRC Integrative Epidemiology Unit at the University of Bristol, which is supported by the MRC (MC_UU_00011/1). BGF is a National Institute for Health and Care Research Academic Clinical Lecturer and was previously supported by a Medical Research Council (MRC) clinical research training fellowship (MR/S021280/1). No funders had any role in the study design, collection, analysis and interpretation of data; in the writing of the manuscript; and in the decision to submit the manuscript for publication.

Keywords

  • DXA
  • epidemiology
  • hip osteoarthritis
  • hip geometry
  • hip shape

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