Dr. Stryker uses a technique he created for first time knee replacement patients. He still makes an incision over the front of the knee. However, instead of cutting the tendon that attaches to the kneecap or the quadriceps tendon, he actually comes underneath the muscle and slides that muscle over the top to get into the knee.  Then, he uses a computer to help him align the cutting guides. He would, then, shave off the very end of the thigh bone and the very top of the shin bone to replace those with metal caps.