Revision Total Knee Replacement is the replacement of the previous failed total knee prosthesis.
During this surgery we remove some or all of the parts of the original prosthesis and replaces them with new ones.
There are different types of revision surgery. In some cases, only one implant or component of the prosthesis has to be revised. Other times, all three components—femoral, tibial, and patellar—need to removed or replaced and the bone around the knee needs to be rebuilt with augments (metal pieces that substitute for missing bone) or bone graft.
5 Signs you May Benefit From a Revision Knee Replacement
The left image shows a periprosthetic distal femur fracture where both the medial and lateral condyles have fractured off the femur. The tibial component is grossly loose and there is a cement mantle fracture. The right image shows a distal femoral replacement (DFR), which was used to replace the loose tibia and fractured femur. By using the DFR, the patient was able to start weight-bearing right away. The little white beads are dissolvable antibiotic beads to help prevent infection.
For the four images below, the two images on the left (labeled Pre-op) are AP and lateral images of a cemented total knee replacement done by another surgeon that has failed due to aseptic loosening and has collapsed into varus malalignment. The two images on the right (labeled Post-op) show the prior knee replacement was removed and replaced with revision components which were reinforced with long stems to fit more securely into the bone and provide more stability.