Hello, Has anyone else suffered from this crippling syndrome? It comes on without warning a liquid flushing feeling in your knee and all of a sudden you cant bend your knee and then the excruciating debilitating pain hits. when this happens to me I am down for the count for the better part of the day. I have had my knee revised two years ago but it came back almost to the date of my revision surgery. I had an angiogram which did not turn up the bleed. I am now 3 weeks post 2nd revision surgery and am hoping to put this all behind me. Please let me know if any of you post TKR have run into this situation. Thanks.