Knee Replacement Surgery
Dr. Russinoff is fellowship trained in knee replacement surgery and has offices in Westchester and Dutchess Counties. Many patients may also qualify for partial knee replacement surgery which is much less invasive than a full knee replacement.
Current knee replacements are performed through much less invasive techniques than in the past. The knee replacement was modernized in the 1970’s. Continued research and improvement in techniques and implants have continued over the years. The main goal of the procedure is to decrease pain and restore function.
The length of the incision is dependent on many factors, especially patient size. The smallest incision is utilized in order to perform the surgery correctly. If too small an incision is used, then visualization is compromised and the knee replacement components may not be placed in the most optimal position. Regardless of the length of the incision, less muscle and soft tissue are cut during the surgery compared to the recent past. This allows for less pain and a faster recovery.
A variety of implants and fixation techniques are currently available. Currently, most knee replacements are cemented onto the bones. Non-cemented implants have a porous surface which allows your bone to grow into the implant, allowing fixation without cement. Non-cemented fixation is still used in certain cases.
Your knee replacement is actually a resurfacing procedure. Only enough bone is cut off the knee edges in order to replace it with the thickness of the metal components. This is typically less than a centimeter on the femur and several millimeters on the tibia. The implants are made of metal, either titanium or cobalt-chromium, both of which are extremely strong and proven to work. A polyethylene bearing surface is placed into the tibial component for the new femoral component to smoothly articulate and move with.
Your knee replacement is made to last a long time. Numerous studies have demonstrated at least 90% of implants functioning well at least 15 years after surgery. We hope that with today’s technologies and improvements in technique these numbers improve even further.