Femoroacetabular Impingement Syndrome
Pronunciation: FEM-oh-roh-uh-SEE-tab-yoo-lar
A mechanical hip condition where abnormal contact occurs between the femoral head-neck junction and acetabular rim during hip motion.
Full Definition
Femoroacetabular Impingement Syndrome (FAIS) is a pathomechanical hip condition characterized by abnormal contact between the proximal femur and acetabulum during hip range of motion. This condition is increasingly recognized in young athletes, particularly those involved in sports requiring repetitive hip flexion and rotation. The syndrome encompasses both cam-type impingement (aspherical femoral head) and pincer-type impingement (acetabular overcoverage), often occurring in combination. Early recognition and appropriate management are crucial to prevent progression to hip osteoarthritis in athletic populations.
Usage
Usage note: Often abbreviated as FAIS in clinical documentation. Distinguish from general 'hip impingement' which may refer to other pathologies.
In Context
- "The MRI findings were consistent with femoroacetabular impingement syndrome, showing both cam and pincer morphology." — Radiology report
- "Conservative management of femoroacetabular impingement syndrome should focus on activity modification and targeted physiotherapy." — Treatment protocol