Why does a blood clot form when you have a bone cut?

Question

I had a knee replacement and developed a blood clot. I had my other knee replaced two years ago, but had no complications. Why did this happen.

Answer 1

Hi, first of all, you must understand that bone in your body is not a "dead" substance, in fact it is far from dead and it is continuously being remodelled. Its nutrients are derived from blood vessels that actually embed and run in the bone itself. In the long bones, there are bone marrow within the bones as well, long bones such as the femur and the humerus. the femur is involved in knee replacement, as they actually shave off the end of the femur so that an articulatory metal part can be put there.

Thus, it is not surprising that a blood clot can form when the bone is cut. Due to blood stasis or positional factors, the blood pools and results in a clot. There are many reasons why complications can happen, they dont always happen, but sometimes, they are inevitable.

Hope this helps. :D

Answer 2

blood clots form in any area of injury to the body, it is part of a survival mechanism. The problems arrise when thru inactivity, too large a clot forms and breaks lose and travels thru the body. Many things can factor into the whole scenario, especially with joint replacement surgeries. Where you using a cpm machine? were you getting adequate hydration did they have you on medications to prevent excess clot formation, were you active immediately after surgery.....the list goes on and on. Complications can happen, they don't always, but the potential is always there.