Knee replacement, or knee arthroplasty, is a surgical treatment for severe knee arthritis or joint damage caused by injury, osteoarthritis, rheumatoid arthritis, or other degenerative conditions. The surgery involves removing damaged cartilage and bone from the knee joint and replacing it with metal and plastic components, creating a new artificial joint. The primary goals of knee replacement are to relieve pain, improve knee function, and enhance the patient's quality of life.
What to Expect:Patients undergoing conventional knee replacement can expect the following process:
- Preoperative Preparation: Before surgery, patients typically undergo a series of medical evaluations to assess their overall health and readiness for surgery. This includes blood tests, imaging studies, and discussions about anesthesia options with the medical team. Patients may also attend preoperative education sessions to understand the procedure and what to expect during recovery.
- Surgical Procedure: Conventional knee replacement is usually performed under general or regional anesthesia. During the procedure, the surgeon makes an incision at the front of the knee to access the joint. Damaged cartilage and bone are removed, and the remaining surfaces are reshaped to fit the artificial components. The new joint typically consists of a metal femoral component, a plastic tibial component, and a plastic patellar component (kneecap). The components are secured using bone cement or other fixation methods.
- Postoperative Care: After surgery, patients are monitored in a recovery room and transferred to a hospital room once they are stable. Pain management and physical therapy begin early to promote healing and mobility. Patients typically stay in the hospital for a few days, depending on their condition and recovery progress.
- Rehabilitation and Recovery: Rehabilitation plays a critical role in successful knee replacement recovery. Patients work with physical therapists to regain strength, flexibility, and range of motion. The initial recovery period is usually 6 to 12 weeks, with full recovery and return to normal activities taking several months.
What to Consider:Knee replacement is a major surgical procedure with potential risks and benefits. Considerations include:
- Risks: Possible complications include infection, blood clots, implant loosening, and nerve damage. Patients should discuss these risks with their surgeon.
- Long-Term Outcomes: Knee replacements are generally successful, but they may wear out over time. The lifespan of an artificial knee joint is typically 15 to 20 years, depending on factors like activity level and weight.
- Lifestyle Changes: After knee replacement, patients may need to modify certain activities to prolong the life of the joint. High-impact activities like running or jumping are often discouraged.
Other Information:Knee replacement surgery has a high success rate, with most patients experiencing significant pain relief and improved mobility. However, the procedure requires a commitment to rehabilitation and lifestyle adjustments for optimal results. Patients are encouraged to discuss all options with their orthopedic surgeon, including minimally invasive techniques, robotic-assisted surgery, and other alternatives to conventional knee replacement.