Positioning of femur for reaming, with patient in lateral position (looking down on patient). Hip is internally rotated, flexed, and adducted until tibia is vertical and axis of knee joint is horizontal. Femoral neck now points downward 15 to 20 degrees, and consequently table is tilted to opposite side for reaming of canal. (From Eftekhar NS: Principles of total hip arthroplasty, St. Louis, 1978, Mosby.) SEE TECHNIQUE 3.4.