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Arthroscopic Treatment of Cam-Type Impingement of the Hip

» Six radiographic views of the hip (anteroposterior and false-profile radiographs of the pelvis, cross-table and frog-leg lateral radiographs of the proximal part of the femur, and 45° and 90° Dunn lateral radiographs of the hip) should be made for accurate characterization of cam morphology for preoperative planning and can be repeated intraoperatively for the assessment of correction. Computed tomography (CT) scans, including three-dimensional reconstructions, can provide valuable information for preoperative planning.