reconstruction of the knee surface
or possibly reconstructive surgery to rebuild the knee surface or unicondylar replacement [surgery]
There is a website out there that refers to "knee surface replacement", however, a quick look will tell you that it was not written by a native speaker of English; thus I'd be suspicious of the terminology.
Take a look at some of these sites:
When more conservative measures no longer provide adequate pain control, surgery can offer relief. It used to be that when the knee surface became sufficiently worn, the only possible choice was a total knee replacement. But this approach often meant removing healthy tissue! Is There Something Better?Yes! The approach involves replacing only the damaged area of your knee. You keep the healthy tissue, and the worn out area is replaced with a small plastic and metal device. The surgery is done arthroscopically, through small incisions. You go home from the hospital the next day, and you’re walking the day of surgery! Tell Me More!Replacing only the damaged component results in a smaller surgery overall. This generally eliminates the need for blood transfusion. Also, the patient usually loses less than half the amount of bone as during a total knee replacement.Most patients drive themselves to their two week post-op appointments. Are There Other Advantages?This procedure causes less trauma to the joint than more traditional surgeries. If you ever need to have the entire joint replaced, that surgery will be simpler and more straightforward.
Knee Replacement: Repairing Only What's Needed
For many individuals the symptoms of knee injury, or osteoarthritis of the knee, can be debilitating. Constant knee pain, persistent knee swelling, the experience of the knee locking or giving out altogether can make standing, walking short distances, or even changing positions after sitting for long periods of time almost impossible. When all avenues of medical treatment for these symptoms have been exhausted, the only course of treatment left has often been full knee replacement surgery — even if injury or disease only affects a portion of the knee. Now, however, there is a surgical alternative to total knee replacement that replaces only the portion of the knee that is injured or diseased. This innovative procedure, called unicondylar surgery, is being performed at Riverview Medical Center.
During total knee replacement surgery, an incision up to 8" long is made in the knee. The joint is then dislocated to expose the knee surface. Approximately 1/2" of the knee bone is removed from the femur (thigh bone) and tibia (shin bone) to make room for the knee replacement or implant. Most total knee replacement patients require several days in the hospital following surgery and extensive follow-up physical therapy. The results of a total knee replacement are usually very positive, but full knee function and recuperation can take many months.
In comparison, unicondylar surgery does not require tht the entire knee be replaced. According to Riverview's many months. Bernard Murphy, M.D., one of the first physicians in Monmouth County to perform unicondylar surgery, &quor;A small incision is made to the knee, and a 1/4" of bone is removed from only the area affected by disease or injury, making room for the implant and leaving healthy tissue intact. The result is less time spent in the operating room, a shorter hospital stay, and a more rapid recovery." In fact, unicondylar patients are encouraged to begin walking soon after surgery and may even resume driving in approximately two weeks.
Our vision is to be able to go and create a piece of living cartilage that is identical to the patient's own," Naughton says. "We'll be able to tissue-engineer the product, have it available off the shelf and then in one minimally invasive procedure, go into the damaged knee surface and replace the damaged area with a piece of cartilage that will grow into their own joint and be a permanent fix."