Background The prevalence of hip osteoarthritis (OA) varies greatly across different geographic locations and population groups. Limited data exist about the prevalence of radiographic hip OA in Turkey.
Objectives The aim of the study was to assess the prevalence of radiographic hip OA in Turkish population.
Methods The radiographs kept at the files of the Department of Urology at Gazi University/Ankara were accessed. Patients aged 25 and over were included (range:25–97). Plain supine abdominal radiographs and intravenous pyelographies were evaluated. A hip joint was included in the study only if the entire femoral head and acetabulum were visible. Kellgren and Lawrence (K&L) grading system for OA was utilised.
Results 1249 hips in 682 (205F, 477M) patients were evaluated. Overall, 8.8% of the hips evaluated had radiographic hip OA (K&L grade 2 and above). In 566 patients, both hips were included, and of these, 11.7% had radiographic hip OA in either one or both hips (9.4% of women and 12.7% of men). 51.5% of the cases had bilateral findings. The prevalence of radiographic hip OA increased with age. It was 1.9%, 16.1%, and 21.6% for age ranges 25–39, 40–54 and >54, respectively. In the majority of the patients the radiographic findings indicated only mild disease (K&L grade 2). There were 3 patients with grade 3 (moderate) disease and only 1 patient (aged 68) had K&L grade 4 (severe) OA.
Conclusion The results suggest that, K&L grade 2 OA changes emphasising osteophytes at the hip joints are not uncommon in Turkish population, especially among aged 40 and over, but moderate-to-severe radiographic OA is not frequent.
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