Howdy all... October of 2012 I sustained a knee dislocation that popped ACL, PCL, MCL, popliteal tendon, along with a plateau fracture. The plan was PCL and MCL in the first surgery, ACL later. During the first surgery I contracted a MRSA inside the knee, led to a near fatal situation. 5 additional surgeries to clean the joint, they declared "no more surgery". I was left with only the LCL intact. Currently I have gross instability in multiple directions. I've managed a good life since then, but recently had an event with the knee. I am exploring options. One option is to not do anything but that effectively cripples me with only one functional leg, and it has a TKR in it already. I recall my surgeon saying that a replacement in the MRSA knee would mean I'd "lose mobility to gain stability". I assume that means more of a mechanical hinge type of replacement. I am just looking for commentary on how the hinged joints function, movements that are possible/not possible and typical lifespan of that joint. I understand that the answers to these questions fall into the "your mileage may vary" category.