Revision knee replacement is performed when an existing implant fails due to loosening, wear, instability, or infection. It's a complex procedure best done by a specialised revision surgeon using modern instrumentation.
Common reasons for revision
Aseptic loosening is the most common cause, followed by polyethylene wear, infection, instability, and stiffness.
Some patients also need revision after a periprosthetic fracture around the implant.
How is revision different from primary surgery?
Revision surgery is technically more demanding — bone loss often needs reconstruction with metal augments or bone graft, and specialised revision implants with stems and offsets are used.
Operative time is longer (2–3 hours) and recovery slightly slower than a primary replacement.
Outcomes
With expert technique, 90%+ of revision patients get excellent pain relief and restored function.
Most return to walking, stairs and normal life within 8–12 weeks.