Total Knee Replacement (TKR)
Synonyms: Total Knee Arthroplasty (TKA), Knee Replacement Surgery, Knee Surgery
What is Total Knee Replacement?
A Total Knee Replacement (TKR) or Total Knee Arthroplasty is a surgical procedure in which those parts of the knee joint which are affected and destroyed by arthritis, are replaced with artificial metal or plastic parts called the ‘prostheses'. Total Knee Replacement may be recommended if you suffer from severe arthritis in the knee, to alleviate pain and to improve your ability to walk.
Where can I get a Total Knee Replacement?
Cost of procedure performed in the US: $35,000 (single), $70,000 (double).
All prices are in US dollars and include the cost of the procedure and minimum hospital stay. Estimates and minimum hospital stay will vary depending upon individual needs and requirements.
Who is an ideal candidate for Total Knee Replacement?
People who suffer from arthritis of knee are candidates for Total Knee Replacement surgery. The most common forms of knee arthritis are osteoarthritis, also known as degenerative joint disease. This disease is also known as 'wear and tear' arthritis. In this condition the joint mechanics is altered, the knee becomes inflamed and irritated, and the damaged cartilage, inflamed tissues, and exposed bone can cause pain. You may be a candidate for Total Knee Replacement if you have a severely damaged, arthritic knee that limits your mobility and function, you are older than 55 and in generally good health, and conservative measures fail to improve your symptoms. Total Knee Replacement can improve knee problems associated with osteoarthritis, rheumatoid arthritis and other degenerative conditions such as osteonecrosis — a condition in which obstructed blood flow causes your bone tissue to die.
What is the procedure for Total Knee Replacement?
The procedure for Total Knee Replacement entails removal of damaged bone and cartilage from your thighbone, shinbone and kneecap and replaced with an artificial joint (prostheses) made of metal and plastic. A longitudinal skin incision, approximately 15 cm in length is made down the front of your knee. The arthritic surfaces are exposed by reflecting the kneecap out of the way. Special instruments are used to remove the bone in a specified manner so that Total Knee Replacement prosthesis can fit onto the bone with or without cement. The cement fixes the prosthesis and allows healthy bone to grow into it. Once the two metal components are fixed to the bone, a plastic insert is placed on the tibial surface. This plastic acts as the shock absorber. The plastic allows the low friction movement to occur. The plastic may either be fixed or mobile depending on the type of prosthesis. The worn out kneecap is resurfaced and cemented to keep it in place. Soft tissue releases are performed to balance the knee joint and after the prosthesis has been placed in the knee, the knee should appear straight and flex to over 110 degrees. A Total Knee Replacement will correct the mal-alignment of bow knees or flexed knees. Following the Total Knee Replacement surgery the wound is closed with absorbable sutures and a drain is inserted.
What happens after the Total Knee Replacement?
Post-operative re-cooperation consists of physiotherapy which is started 24 to 48 hours following Total Knee Replacement. It is important to do all the exercises as recommended by your physiotherapist as they will allow a quicker recovery. The most important are exercises to strengthen the quadriceps, knee extension and flexion. Some of these exercises can be done in the comfort of your home; others may require the use of weight machines, exercise bicycles or treadmills, which may mean visits to an athletic club, fitness center or clinic. After re-establishing full range of motion in your knee, you then progress to knee-, hip- and ankle-strengthening exercises combined with training to improve your stability and balance. You should expect to gain a range of motion from 0 - 110 degrees. Very stiff knees often do not regain this amount of movement.
What is the outcome of Total Knee Replacement last?
Total Knee Replacement implants can eventually wear out over time as they are made of metal and plastic. There is consistent clinical evidence that Total Knee Replacement implants function well in 90 - 95% of patients between 10 and 15 years after surgery. Most Total Knee Replacement operations last more than 20 years.
B . R . A . N . D . of Total Knee Replacement
As with all other major surgical procedures, Total Knee Replacement has risks and complications that can occur, so careful pre-operative assessment is extremely important.
Your Questions Answered on Total Knee Replacement
Keywords: Bilateral Total Knee Replacement, Knee Pain, Osteoarthritis of the Knee, Total Joint Arthroplasty, Artificial Knee, Bones & Joints, Arthritis, Joint Pain, Artificial Joints, Osteotomy, Degenerative Joint Disease, Knee Arthroscopy, Intra-articular Injections, Osteomyelitis