In 85% to 90% of people who have a total knee replacement, the knee implants used will last about 15 to 20 years or more. However, there are times when the original implant fails. This means that some patients who have a knee replacement may eventually need a second operation or revision to remove the original components and replace them with new implants.
There are times when the original total knee fails and a revision surgery is needed to change the original components
What is a revision total knee?
A revision total knee replacement is the removal of the original implants and re-implanting new components. Some knee revisions may require the replacement of only one component, while others require a complete exchange of all the components that were implanted during the original total knee replacement. A complete revision is a complex procedure that requires extensive preoperative planning, specialized implants and tools, prolonged operating times, and mastery of difficult surgical techniques.
Who needs revision surgery?
A revision total knee replacement may be necessary for a knee implant that fails due to injury or wear, or develops an infection in or around the knee joint. While total knee replacement has been shown to be a predictable and durable procedure, there are situations where the original total knee replacement needs to be revised. It is important to discuss with your surgeon the reason for failure, the plan for correction and the expected outcome after revision surgery.
Common reason for revision
- Loosening of one or more of the components with a de-bonding of the implant from the bone
- Wear or breakage of the plastic bearing surface
- Instability of the knee
- Stiffness with limited motion
- Infection