Direct Anterior Approach Versus Direct Lateral Approach in Total Hip Arthroplasty

"The procedure begins by positioning the patient supine on a normal table . Both feet are draped separately to assist with dislocating and proximal femural shaft exposure.The surgical incision begins 2-4 cm lateral to the anterior superior iliac spine of the pelvis . It is then carried distally and laterally for about 8-12 cm. After protecting the lateral femoral cutaneous nerve, the fascia overlying the tensor fascia latae (TFL) is incised, and a plane is then developed between the TFL and sartorius. After coagulating the ascending branch of the lateral femoral circumflex artery, a capsulectomy is performed. Placement of the final acetabular component is facilitated by the use of an offset inserter handle.~Femoral preparation begins by placing the operative limb in a position of extension, adduction and external rotation to improve the accessibility of the proximal femur.~Once the final implants are in situ, the hip is reduced and assessed."

"The procedure begins by positioning the patient in the supine decubitus position.~A longitudinal incision is made extending 3-5 cm proximal and about 5-8 cm distal to the tip of the greater trochanter . The fascia is split at the interval between the TFL and gluteus. The tendon and muscle fibres of the gluteus medius are then visualized and split . The gluteus minimus and joint capsule are split. The surgeon then dislocates the femoral head, and performs a femoral neck osteotomy.~The acetabulum is prepared .Soft tissue landmarks and reamer positioning relative to the floor are used to verify acetabular version and inclination.~When preparing the proximal femur, the hip is adducted and externally rotated, with the knee flexed. The femural stem is then press-fitted. Once the final implants are in situ and the hip is reduced, the stability of the construct is assessed."