Clinical tests to determine femoral version category in people with chronic hip joint pain and asymptomatic controls.

This was a secondary analysis of a parent cohort study, and the parent study was powered for hip abductor strength, not for these diagnostic relationships. The analysis included 38 matched pairs after 2 of 80 recruited participants were excluded for MRI problems. The population was relatively homogeneous in age and BMI, and the authors stated broader populations are needed. Most participants were female, and the authors stated this may have impacted results. A single examiner performed MRI measurements and another examiner performed clinical measures, and the authors stated generalization to other examiners may be limited. People with chronic hip pain were included, and the authors stated their range of motion may be affected by their condition. The authors stated they did not take into account other bony abnormalities that may contribute to hip range of motion. The authors stated they do not know if the femoral version categories indicate increased injury risk.

The authors state they have no financial affiliation or involvement with any commercial organization that has a direct financial interest in the manuscript, except as disclosed in an attachment.

Do not assume abnormal femoral version explains chronic hip pain. People with chronic hip pain and matched controls had no differences in MRI femoral version, Craig's test, or hip rotation measures, and the study did not show that the version categories predict injury.