1. Osteophyte size and location on hip DXA scans are associated with hip pain: Findings from a cross sectional study in UK Biobank
- Author
-
Raja Ebsim, Nicholas C. Harvey, Claudia Lindner, Fiona R. Saunders, Timothy F. Cootes, B.G. Faber, Monika Frysz, G Davey Smith, Richard M. Aspden, Jonathan H Tobias, and Jennifer S. Gregory
- Subjects
musculoskeletal diseases ,Histology ,Physiology ,Cross-sectional study ,Endocrinology, Diabetes and Metabolism ,Radiography ,Pain ,Dual-energy x-ray absorptiometry ,Osteoarthritis ,Logistic regression ,Osteoarthritis, Hip ,Article ,Femoral head ,Absorptiometry, Photon ,Hip osteoarthritis ,medicine ,Humans ,Hip pain ,Dual-energy X-ray absorptiometry ,Biological Specimen Banks ,Orthodontics ,medicine.diagnostic_test ,business.industry ,Osteophyte ,Joint space narrowing ,medicine.disease ,Acetabulum ,United Kingdom ,Cross-Sectional Studies ,medicine.anatomical_structure ,Cohort ,business ,Automated method - Abstract
Objective It remains unclear how the different features of radiographic hip osteoarthritis (rHOA) contribute to hip pain. We examined the relationship between rHOA, including its individual components, and hip pain using a novel dual-energy x-ray absorptiometry (DXA)-based method. Methods Hip DXAs were obtained from UK Biobank. A novel automated method obtained minimum joint space width (mJSW) from points placed around the femoral head and acetabulum. Osteophyte areas at the lateral acetabulum, superior and inferior femoral head were derived manually. Semi-quantitative measures of osteophytes and joint space narrowing (JSN) were combined to define rHOA. Logistic regression was used to examine the relationships between these variables and hip pain, obtained via questionnaires. Results 6807 hip DXAs were examined. rHOA was present in 353 (5.2%) individuals and was associated with hip pain [OR 2.42 (1.78–3.29)] and hospital diagnosed OA [6.01 (2.98–12.16)]. Total osteophyte area but not mJSW was associated with hip pain in mutually adjusted models [1.31 (1.23–1.39), 0.95 (0.87–1.04) respectively]. On the other hand, JSN as a categorical variable showed weak associations between grade ≥ 1 and grade ≥ 2 JSN with hip pain [1.30 (1.06–1.60), 1.80 (1.34–2.42) respectively]. Acetabular, superior and inferior femoral osteophyte areas were all independently associated with hip pain [1.13 (1.06–1.20), 1.13 (1.05–1.24), 1.10 (1.03–1.17) respectively]. Conclusion In this cohort, the relationship between rHOA and prevalent hip pain was explained by 2-dimensional osteophyte area, but not by the apparent mJSW. Osteophytes at different locations showed important, potentially independent, associations with hip pain, possibly reflecting the contribution of distinct biomechanical pathways., Highlights • Radiographic hip OA, derived from DXA images, is associated with hip pain in UK Biobank. • Osteophyte size, as reflected by osteophyte area on the DXA image, shows strong associations with hip pain. • In contrast, joint space width is only weakly associated with hip pain.
- Published
- 2021
- Full Text
- View/download PDF