The Veterans Medical Ctr states thru x-rays, I need a full knee replacement. 8 years ago I had spinal fusion performed by Dr. Bruce Rudin, whom I trust with any spinal issues I have. ( 1st state Spine center). 15 implants were performed. they cut the front and rear to do the surgery for S1, L5. L4 fusion. I am completely off balance, falling several times a week w/o warning. I am scared, that any incorrect measurement to place the implant in my knee will cause more spinal issues. Also included I have spinal stenois up to L1.I already have had 4 knee surgeries.. acl, both menicuses repaired, knee cap scraped to give room for joint.