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Objective  Radiographic measurements of the alpha angle and the lateral center edge ( LCE ) angle in the hip joint are important for the diagnosis of femoroacetabular syndrome, a potential risk factor for hip osteoarthritis. Our objective was to determine whether these measurements are associated with hip‐related patient‐reported outcomes in young and middle‐aged individuals.    Methods  A stratified random sample of white men and women ages 20–49 years, with and without hip pain, was selected using random digit dialing from the population of metro Vancouver, Canada. The alpha and  LCE  angles were measured bilaterally on radiographs using Dunn and anteroposterior views, respectively. Patient‐reported outcomes were measured by the Copenhagen Hip And Groin Outcome Score ( HAGOS ), which has scales for symptoms, pain, daily activities, sports, physical activity, and quality of life (QoL). We performed descriptive analyses and a regression analysis with restricted cubic splines, adjusted for age and sex and weighted for the sampling design.    Results  Data were obtained for 500 subjects. The alpha angle distribution was strongly skewed, with a mean of 54°. The  LCE  angle distribution was symmetric, with a mean of 34°. In the restricted cubic splines analysis, the relationship between the alpha angle and  HAGOS  scores was nonlinear, with higher alpha angles generally associated with worse  HAGOS  scores for alpha >60°. The associations were statistically significant for symptoms, sports, and QoL. No association was found between the  LCE  angle and  HAGOS  scales.    Conclusion  In a general population sample ages 20–49 years, we have found an association between the alpha angle and hip‐related patient‐reported outcomes.

Relationship Between Hip Morphology and Hip‐Related Patient‐Reported Outcomes in Young and Middle‐Aged Individuals: A Population‐Based Study