Pathologyįemoroacetabular impingement is an intra-articular or internal form of impingement, where structural changes combined with dynamic factors as repetitive abnormal contact of the acetabulum and the femoral head-neck junction lead to mechanical stress and shear forces on the labrum and chondral surfaces and subsequent damage 1-4. Sometimes the pain is also described in the buttock, back or thigh and in addition, there may be symptoms of stiffness, clicking, locking, catching 2.Ī common clinical test for femoroacetabular impingement is the FADIR (flexion, adduction, internal rotation) test, which is sensitive but not specific 2. a painfully restricted range of motion during hip flexion, internal rotation and adduction. Patients usually present with motion or position-related hip and/or groin pain e.g. Given the widespread prevalence of cam and/or pincer morphology in the asymptomatic population, the diagnosis of femoroacetabular impingement syndrome is reliant on positive symptoms and clinical examination signs in addition to imaging findings of a femoroacetabular impingement morphology 24. Previous slipped capital femoral epiphysis or Perthes disease High impact sport activity, especially in adolescence during physeal closure

Femoroacetabular impingement is common in active young and middle-aged adult individuals, with pincer morphology being more common in middle-aged women and cam morphology more common in young men 1,2.

Normal female hip lat xray