Ashutosh OrthopaedicHospital Vadodara

How successful is knee replacement surgery?

Knee replacement has become the most common form of joint replacement surgery. In 2010 over 721,000 such procedures were performed in the United States. Between 1991 and 2010, the incidence of knee replacements increased by over 161%, due partly to improvements in the science of knee replacement implants, experience of surgeons, and the growing population of knee replacement patients.

Although public perception can be influenced by negative advertising and press, the fact is that knee replacement surgery is one of the most successful surgical procedures performed today and patient perception is by and large positive.

Success rates

Success rates and quality of life improvements for knee replacement patients are reliably very high. Nine out of 10 knee replacement patients experience an immediate relief from knee pain, and 95% report they are satisfied with their procedure.

Approximately 90% of replacement knee joints last 10 years, while 80% are good for 20+ years, depending on patient health and activity levels. Outcomes vary from patient to patient.

Knee ReplacementSurgeon

Dr. Kunal Shah

Joint ReplacementSurgeon

Dr. Kunal Shah

Who gets a knee replacement?

Most knee replacement patients are over 60 years of age (52.66%), but certain factors can necessitate knee replacement in younger people and there is a growing incidence of patients in their 50s, 40s and even 30s who have had successful knee replacements.

The largest contributing factor to needing a knee replacement is advanced arthritis, however other conditions such as osteonecrosis (reduced blood supply to bone causing bone death and pain), and injuries (trauma from accidents or sports injuries) may lead to breakdown of the knee joint and create the need for knee replacement surgery.

Rehabilitation as a factor in success

While knee replacement surgery is largely very successful, the success of the procedure is partly due to the rehabilitation period that follows the surgery. For you to expect a good result from knee replacement surgery, you must be an active rehab participant. The importance of this cannot be underestimated!

Rehabilitation after knee replacement begins almost immediately. You will work with a physical therapist as soon as the surgical procedure has been performed. The emphasis in the early stages of rehab is to maintain motion of the knee replacement and to ensure that you can walk safely.

The body reacts to surgery by making scar tissue, and you may never recover normal motion if you do not focus on bending and straightening your knee replacement according to your doctor’s and physical therapist’s instructions.

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