Fig 7.

Surgical step 3. Stryker direct anterior approach retractor placement to exposure the anterior hip capsule includes the wide Cobra at the lateral femoral neck, the standard Cobra at the medial femoral neck, and the curved Homan over the pelvic brim. The curved Homan needs to stay perpendicular to the inguinal ligament to prevent a femoral nerve palsy. The figures depicting the surgical procedure are in a supine position, on a left hip. Proximal, distal, medial, and lateral are the top, bottom, left, and right of the image, respectively.