Revision Knee Replacement Surgery
Total Knee Replacement (TKR) is one of the most successful orthopaedic procedures of modern era. When there is a severally damaged osteoarthritic knee and the joint is completely degenerated, total knee-replacement surgery is the preferred procedure. In this procedure the surgeon shaves the damaged cartilage from the bone ends and replaces it with a new surface called prostheses, which can be made form alloy-metal, high-grade plastic and polymers. Use of advanced technology in knee replacement surgery has made this procedure more accurate and long lasting. The long-term success rate for total knee surgery currently has exceeded 98%. The availability of advanced materials, such as titanium prostheses and new plastic joint liners, provide orthopaedic surgeons with options that help increase the longevity of the prosthesis.
The usual life of a successful total knee replacement is about 20 years. It may however vary under individual circumstances. If primary surgery is not successful then a revision knee replacement surgery is required where a part or the whole of the previous knee replacement needs to be revised.
There are several reasons for the failure of knee implants. Some of these reasons are wear, loosening, infection, fracture, instability, and patient related factors.
An unsuccessful primary knee replacement implant is usually indicated by an increase in pain or a decrease in knee function. Constant pain and swelling can indicate loosening, wear, or infection, and the location of the pain can be all over the knee or in one particular area.
The symptoms of failed primary knee replacement implant are limpness, stiffness, or instability. Patients who demonstrate these symptoms and signs may require revision joint surgery.
Revision Total Knee Replacement is the replacement of the previous failed total knee prosthesis with a new prosthesis. It is a complex procedure that requires extensive preoperative planning, specialised implants and tools, prolonged operating times, and mastery of difficult surgical techniques to achieve a good result.
While doing revision Total Knee Replacement, the surgeon will remove the primary Total Knee Replacement implants and prepare the bone fresh for revision implants. Removal of primary implant may need specialised tools and burrs. Revision implants are complex to use and often augments, rods, etc. are used to compensate for bone loss.
Post-operative care after knee revision surgery is very similar to the care of a primary knee replacement. This includes a combination of physical therapy, blood management, and pain medication as necessary. Antibiotics and some method of blood clot prevention will be continued in the postoperative period. A brace or splint may be used to protect the joint after the surgery.
Recovery time after revision knee surgery is the same as primary knee replacement surgery and the results are as good as primary knee replacement surgery.
Greater than 90% of patients who undergo revision procedures can expect to have good to excellent results which includes pain relief with increased stability and function.
Revision knee replacement surgery is a complicated procedure and requires highly professional expertise.
Revision Hip Replacement Surgery
Total Hip Joint Replacement is one of the most successful contemporary surgical procedure. Recent advanced techniques, improved implant characteristics, aggressive physical rehabilitation and a focus on pain management have all contributed to excellent outcomes of hip joint replacements.
Total hip replacement surgery involves replacing both the ends of the hip joint. In total hip replacement surgery, the surgeon replaces the upper end of thigh bone (femur) head with a metal ball and resurfaces the cup like shape of hip bone (Pelvis) with metal liner which is called prosthesis. The usual life of prosthesis (implant) is 20-25 years but in some circumstances the hip joint may fail because of loosening, infection, wear, fracture to the joint and dislocation. The failure of primary hip replacement surgery causes severe pain and abnormal motion for the patient.
During the revision hip replacement surgery orthopedic surgeon removes failed primary hip replacement prosthesis (implant) and replaces the joint with revision prosthesis. The revision hip replacement surgery needs special expertise as it requires removal of one/both components and replacement by filling the bone voids with bone graft or special revision implants. This should be done at units which deal with high volumes of hip replacement and have dedicated operating room and teams for joint replacements.
Recovery time may be same as primary hip replacement surgery and the results are as good as primary hip replacement surgery. Relief from pain, restoration of function in hip and improved quality of life are the main benefits of revision hip replacement surgery. This surgical procedure enables patients to return to normal activities with a pain free hip.
Revision hip replacement surgeries are challenging and complicated procedures and need a very efficient joint surgeon with professional expertise.