A revision knee surgery is when a second surgery needed for a total knee replacement after the primary surgery.
Overview of procedure
- A 3-4 inch incision will be made on the front of the knee
- The tendons are pulled to the side to expose the joint to allow for assessment of the damage to the prosthesis.
- The physician will remove some or all of the parts of the original prosthesis and replaces these metal and plastic parts with new ones.
- The patient may need a bone graft or to rebuild part of the bone with metal augmented parts.
- The patient may need a specialized implant with longer stems that fit deeper inside the bone for more support
- Due to technical aspects of the revision knee surgery being more complex, the surgery is longer than a primary total knee replacement surgery and will last 2-3 hours.
Pre-treatment considerations
- Knee replacements can fail after a certain amount of time. High impact activities, excessive body weight, and wearing down of plastic spacer in between the two metal implants all pre-dispose the implant for wearing down or loosening.
- Younger patients may “outlive” their prosthesis and therefore need another.
- Recommended when there is an infection in the joint
- Recommended when there is instability due to ligament damage, stiffness, or fractures around the components of the replacement.
- A revision knee surgery is performed to fix a complication and restore pain-free function
- Each surgery is unique and individualized due to the needs and complications from the first surgery.
- The revision knee surgery is a longer more complex procedure that requires extensive planning as well as specialized implants and tools.
Post-treatment considerations and recovery
Technical aspects of a revision knee surgery are more complex. Therefore, recovery can be slower than with the first surgery.
- After surgery patient is taken to a recovery room and then to their in-patient hospital room. The normal duration of stay after revision knee surgery is approximately 1-3 days.
- Physical therapy to restore range of motion will begin immediately after surgery as well as medications to control pain and thin the blood to reduce clots.
- Once the patient can walk and pain is controlled they can be discharged from the hospital\
- The first post-operation office visit will be at approximately 2 weeks. Following appointments will be made 6 weeks post-op and 12 weeks post-op.
Pros and benefits
- A revision surgery is required is the original knee replacement has worn out or is causing pain or instability
- This revision procedure can restore function and allow patients to move better and more pain free
Cons, risks, and possible side effects
- Higher risks than for a primary surgery
- Risk for poor wound healing
- Possible nerve or blood vessel injury
- Blood clots in legs or profuse bleeding
- Bone fractures
- Heart attack or stroke
- Infection
- Stiffness or reduced range of motion
- Loosening of parts, meaning another revision must be needed.













