Radiographic Pincer Morphology Not Associated With Hip Osteoarthritis, Reveals Study

An interaction term was added to investigate whether pincer morphology had a different effect on symptomatic hips. Results: Incident RHOA developed in 69 hips (5%) at 2 years’ follow-up, in 178 hips (14%) at 5 years’ follow-up, in 279 hips (24%) at 8 years’ follow-up, and in 495 hips (42%) at 10 years’ follow-up. No significant associations were found between pincer morphology and incident RHOA (adjusted OR 0.35 [95% CI 0.06–2.15]; adjusted OR 1.50 [95% CI 0.94–2.38]). Significant interactions between pain and anterior pincer morphology in predicting incident RHOA were found at 5, 8, and 10 years’ follow-up (OR 1.97 [95% CI 1.03–3.78]; OR 3.41 [95% CI 1.35–8.61]). No associations were found between radiographic pincer morphology and incident RHOA at any follow-up moment. Anteriorly located pincer morphology with hip pain, however, was significantly associated with incident RHOA. This highlights the importance of studying symptoms and hip morphology simultaneously.

Reference:

Riedstra, N.S., Boel, F., van Buuren, M., Eygendaal, D., Bierma-Zeinstra, S., Runhaar, J. and Agricola, R. (2024), Pincer Morphology Is Not Associated With Hip Osteoarthritis Unless Hip Pain Is Present: Follow-Up Data From a Prospective Cohort Study. Arthritis Care Res. https://doi.org/10.1002/acr.25285