Surgery OK

The heart doctor gave me the thumbs up for knee replacement surgery. I was sure the heart would hold up for them to do it but they wanted assurance from a professional. The only thing that could be a problem is my lungs that are really bad. If they use the spinal and deaden me from the waist down the lungs will still function and should be fine. They don't want to get at a place where they have to use the breathing machine since there is a chance I could never get off of it again. Just the risk I have to take to get rid of some pain.