Total knee replacement (TKR), also known as knee arthroplasty, is a surgical procedure where damaged bone and cartilage in the knee joint are replaced with a prosthetic. This surgery is typically considered when medications, physical therapy, and exercise no longer provide relief. TKR surgery is known for its effectiveness in alleviating pain and restoring knee joint function, thus improving mobility.
Each year, about 70,000 to 80,000 knee replacements and 20,000 to 30,000 hip replacements are performed, indicating growing awareness about surgical options for treating arthritis. In the early stages of arthritis, medication and walking aids can help, but when arthritis progresses significantly, a total knee replacement is often recommended.
Many individuals with arthritis may feel hopeless when told their knee condition is severe, but TKR offers a viable solution. The surgery significantly enhances knee function, bringing relief and hope to many. There are different types of TKR surgeries, each catering to specific needs:
High Flex Total Knee Replacement: These implants offer increased flexion, allowing for better knee movement, such as climbing stairs, squatting, or kneeling.
Oxinium Total Knee Replacement: This uses a special material that reduces wear and tear, improving the longevity of the implant and decreasing the risk of complications.
Revision Total Knee Replacement: Performed when an existing knee prosthesis fails due to wear, tear, or injury. It may involve two steps: infection treatment and replacement of the prosthetic.
Minimally Invasive Total Knee Replacement: Using advanced techniques like computer navigation, this surgery offers reduced pain, faster recovery, and shorter hospital stays.
Partial Knee Replacement: For patients with damage to only part of the knee joint, this procedure replaces just the affected area, rather than the entire joint.
Before undergoing TKR surgery, patients will meet with their surgeon to discuss the procedure, risks, and the technologies used during the surgery. The surgery is performed under spinal or general anesthesia. The surgeon removes the damaged parts of the knee and replaces them with high-quality prosthetics made from metal alloys or polymers, which are cemented into place. Afterward, the incision is closed and a drain may be placed to remove excess fluid.
Post-surgery, it is common to experience pain and stiffness, but with proper care, most patients return to normal activities within six weeks. Full recovery may take six months to a year. Here are some tips for recovery:
Physical therapy is a key part of recovery, helping patients regain knee function and mobility. Most individuals undergo at least four weeks of therapy post-surgery, gradually progressing through various exercises to strengthen the knee and enhance flexibility.
Total knee replacement is an effective solution for those with severe knee arthritis or joint damage. Though there may be some discomfort initially, with the right care and rehabilitation, patients can experience significant improvement in mobility and quality of life. Regular physical therapy and following the surgeon’s instructions will aid in a faster and more complete recovery.
What is the cost of Total Knee Replacement surgery?
The cost depends on factors like the type of procedure, surgeon’s fees, hospital charges, and the city where the surgery is performed. The cost of knee implants has become more affordable due to price caps imposed by the government.
When is Total Knee Replacement surgery necessary?
TKR is typically recommended for individuals with severe knee pain or stiffness due to conditions like osteoarthritis or rheumatoid arthritis, where movement is significantly impaired.
What conditions does Total Knee Replacement treat?
Conditions treated by TKR include severe osteoarthritis, rheumatoid arthritis, ligament damage, gout, avascular necrosis, and other knee deformities.
What activities should be avoided after surgery?
High-impact activities such as jogging, squatting, or any exercise that puts excessive stress on the knee should be avoided until cleared by your physical therapist.
Will I be able to crawl on my knees after surgery?
Crawling should be avoided due to the risk of damaging the prosthesis, although kneeling may be allowed after healing and with the therapist’s approval.
What is the success rate of TKR surgery?
Most patients experience significant pain relief and increased mobility. Complications like stiffness, infection, or prosthesis wear may occur in some cases.
How long will recovery take?
It typically takes 6-12 weeks to resume normal activities and 6-12 months for full recovery and improved knee strength.
Can both knees be replaced simultaneously?
Simultaneous knee replacement may be an option for some patients, depending on their overall health and the extent of knee damage. Consult with your surgeon to determine if this is appropriate.
What type of anesthesia is used?
TKR is typically performed under general or spinal anesthesia, depending on the patient’s condition and the surgeon’s preference.
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