I had TKR rt. knee back in 2006 with Pulmonary embolism (PE) 2 days later with months of heparin. Fell on it in 2008, now have grinding and clicking but no pain. OS says xray shows everything okay. Now lft knee has broken down with MRI showing total destruction of joint at end stage. I know OS will want to replace it but I am more interested in cleaning out the garbage v.s. replacement. I am 77 and large female. Should I risk possible PE again? Barb View Thread