The general goal of total knee replacement is designed to provide pain-free and unlimited standing, sitting, walking, and other normal activities of daily living.
Total knee replacement (TKR), also referred to as total knee arthroplasty (TKA), is a surgical procedure where worn, diseased, or damaged surfaces of a knee joint are removed and resurfaced with artificial smooth and strong materials which are durable and also produce as little friction as possible. The "artificial joint or prosthesis" generally has two components, one made of metal which is usually cobalt -chrome or titanium. The other component is a plastic material called polyethylene
Once the anaesthesia has been given and the patient prepared an incision approximately eight cm in length is made on the front of the knee. The surrounding muscles and most of the ligaments are cut in such a manner that they can be preserved. The damaged bone and joint surfaces are removed from all 3 bones making up the knee joint. Sometimes, depending on the surgeon, the back of the knee cap is left intact if it is not badly affected by the arthritis.
The lower end of the thigh bone (femur) is resurfaced with a metal cap.
The upper end of the leg bone (tibia) is replaced with a plastic and metal implant with cement and or screws.
The back of the kneecap (patella) is also resurfaced with an all-plastic implant. Highly specialized instruments are used that allow precision cutting of the bone so that the new joint fits perfectly. The type of implant used depends on surgeon's preference and patient requirements.)
Plan for going home with necessary medicines and physiotherapy advice.
At Naisarg Center we are using "Hi-Flex Knee Joint" and special tissue release technique.So no need to do Painful Physiotherapy.
A cemented knee is a very reliable procedure with approximately 90to 95 percent expected to enjoy pain-free activities for at least fifteen years beyond surgery. The advantage is that this type of knee replacement is immediately stable and one can walk fully bearing weight immediately following surgery. The disadvantage is that the cement –bone-implant bond eventually becomes loose after 15 years resulting in necessity for repeat surgery ( Revision knee replacement)
The artificial knee implant is fixed to be bone using a glue called bone cement. Bone cement is prepared by a chemical reaction between special type of polymer and liquid reagent.