used to expose the posterior cruciate ligament attachment to the medial femoral condyle the previously determined entry point on the distal femoral surface is flattened and prepared with a duckbill rongeur this is usually a point just anterior to the lateral fibers of the posterior cruciate ligament the preceding operative approach is not illustrated and for the purposes of clarity soft tissue ligaments and other nonessential elements have been eliminated from fig1 23 for the purposes of clarity when the preferred embodiment of intramedullary reamer 10 wherein portion 13 has an outer diameter of 0 359 34 9 12 mm is used a 3 8 34 9 5 mm outer diameter drill bit is used to bore entry point 148 through the spongy portion 154 of the femur shown in fig1 fig1 shows in cross section a normal straight femur 150 of the right leg having a tubular shaft of hard compact cortical bone surrounding intramedullary canal 156 and having areas of spongy bone 154 at both ends of the shaft reference numeral 140 shows the distal femoral surface after the drill bit is removed portion 13 of intramedullary reamer 10 is inserted into the bored entry point and handle 18 is employed to impart a twisting motion to reamer 10 as portion 13 is advanced through the intramedullary canal 156 as the compact bone surfaces narrow portion 13 is caused to follow the canal 156 and when portion 13 is completely inserted into canal 156 as shown in fig1 the central.