What is a revision knee replacement?

A revision knee replacement is a surgical procedure to replace or repair a previously implanted knee prosthesis that has failed or is no longer functioning properly. This will help in addressing the problems of pain, loosening of the implant, infection, or mechanical failure of the implant.

When should I consider revision knee replacement?

Chronic Pain: The patient has persistent pain or soreness with conservative treatment.

Loosening of Implant:  The implant is loose/unstable as indicated by an imaging study.

Infection: Deep infection in the knee joint.

Mechanical Failure: The prosthesis has failed or is showing a wear and tear pattern.

Limited Function: There is inability to carry out activities of daily living because of knee dysfunction.

Revision knee replacement-how is it done?

Revision knee replacement consists of the removal of the existing implant and its replacement with a new one. The surgery may include:

Bone preparation: cleaning off old cement or pieces of implant for preparing the bone for a new implant.

Tailor made Implant placement: correctly positioning and aligning the new prosthesis, which may be specifically tailored in its positioning and alignment to meet particular needs of the patient.

Repairing surrounding tissues: repairing damaged tissue or ligaments.

It takes around 2-3 hours to perform and is done under general or spinal anesthesia.

What is the time required for recovery post-revision knee replacement?

Revision knee replacement needs more time for recovery compared to primary knee replacement. Most patients are able to walk with support within one or two days of surgery. The full recovery and resumption of normal activities take around 6 months along with additional physical therapy to get good strength and mobility.

What are the risks associated with revision knee replacement?

Risks include chances of infection, blood clots, implant failure, stiffness, and prolonged recovery since the revision procedure is often more complex.

How long does revision knee replacements last?

With newer implant technologies and improved surgical techniques we use , revision knee replacements have the potential now to last 20 years, and even longer in certain cases. The longevity of the implant will, however, depend on various factors such as the activity level of the patient, weight of the patient, and general health of the patient.