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Femoroacetabular impingement is defined as anterior hip abutment between the acetabular rim and proximal femur. When it is secondary to acetabular overcoverage, it is pincer impingement. When it is secondary to femoral head and neck deformity, it is cam impingement. Open remodeling of impinging deformities is the standard treatment of this condition. We describe arthroscopic treatment of cam impingement...