I had a total knee replacement on March 21 due to an old injury, no cartilage, arthritis and misalignment. The surgery went very well and I have healed very nicely. Due to the length of time I have been out of alignment (30 years), the muscle memory and way of walking have hampered my rehabilitation and physical therapy. This is not due to any failure on my surgeons part and I believe he/I will resolve this problem soon. I am happy with my surgery and rehab.