Treatment of Pincer-Type Femoroacetabular Impingement

Diagnostic Confirmation

The diagnosis of pincer-type FAI requires all three components: hip-related groin pain, positive clinical examination, and imaging confirmation showing lateral center edge angle (LCEA) >40° on plain radiographs, as recommended by the American Academy of Orthopaedic Surgeons 1, 2
A critical pitfall is never to treat imaging findings alone, as pincer morphology is common in asymptomatic individuals and does not warrant intervention without corresponding symptoms and clinical signs, according to the British Journal of Sports Medicine 2, 3

For patients meeting diagnostic criteria, begin with a 3-6 month trial of conservative treatment, including activity modification, physical therapy, and NSAIDs for symptomatic relief, as suggested by the Praxis Medical Insights 3

Proceed to surgical intervention when conservative management fails after 3-6 months, or when there is persistent hip-related pain with positive clinical examination findings, or when MRI or MR arthrography demonstrates labral tears or chondral damage requiring concurrent treatment, as recommended by the Praxis Medical Insights 3
The preferred surgical method is hip arthroscopy, with steps including acetabular rim trimming, labral management, and addressing associated pathology, such as chondral lesions, according to The Journal of the American Academy of Orthopaedic Surgeons 4
For concurrent chondral lesions, microfracture is recommended for grade 2-3 lesions <3 cm², and matrix-assisted autologous chondrocyte implantation (MACI) is considered for larger defects >2 cm² with Tönnis grade 2 osteoarthritis, as suggested by the Praxis Medical Insights 3

Open surgical dislocation remains indicated when there is concern for inability to fully access the morphology arthroscopically, severe acetabular retroversion, or combined cam and pincer deformities, but carries a risk of femoral head osteonecrosis, according to The Journal of the American Academy of Orthopaedic Surgeons 4