The relationship between cam morphology and hip and groin symptoms and signs in young male football players

Background: Conflicting and limited high-quality prospective data are available on the associations between cam morphology and hip and groin symptoms and range of motion (ROM). Objectives: This cross-sectional cohort study investigated associations between cam morphology presence, size and duration and symptoms and ROM. Methods: Academy male football players (n = 49, 17-24 years) were included. Standardized antero-posterior pelvic and frog-leg lateral radiographs were obtained at baseline, 2.5- and 5-year follow-up. The femoral head-neck junction was quantified by: Visual score. Cam morphology (flattening or prominence), large cam (prominence). Alpha angle.