I need to ask if anyone who has needed knee revision due to loosening, mechanical failure, dislocations etc., with complex issues in addition to OA with your knee, if you had any other surgical option aside from revision to fix your knee please? I have a history of severe knee fracture, resistant muscle atrophy, nerve damage, RSD/CRPS, arthrofibrosis of the knee, and severe osteoporosis of the limb. The PKR needs to be revised but I am afraid the TKR may "fail" too. I had a severely shattered, displaced fracture of the knee a decade ago and gone through the mill with surgeries on it. Including knee reconstruction/partial replacement. It's never been the same, nor pain free. Ive at best been toe-touch with wt bearing, requiring a brace. knee ROM is very limited due to the scar tissue. So it's been almost like having a fusion due to all of this. If a knee is destroyed that severely, sometimes it just may feel better to bedone with it.