Fig. 7From: Load distribution between cephalic screws in a dual lag screw trochanteric nailNormal stress at the two cephalic screws for four different extreme screw configurations. Superior screw 105 mm, inferior screw 105 mm (a). Superior screw 105 mm, inferior screw 90 mm (b). Superior screw 90 mm, inferior screw 105 mm (c). Superior screw 90 mm, inferior screw 90 mm (d)Back to article page