Deedles...I had a knee replacement five years ago; one of the best things I ever did for myself. I was an Operating Nurse at the time and went back to work at 8 weeks and did fine, pushing stretchers, transferring patients, etc. The most important thing is to follow your surgeon's post-op instructions exactly; commit yourself to do your physical therapy exercises exactly as and when instructed. Secondly, be patient with yourself and give your body time to heal. Remember that although the surgery was on your knee, your entire body was affected by the anesthesia, the pain meds, etc. The better care you take of yourself initially, the sooner you will return to full function, usually better than ever. Don't compare your experiences to anyone else's, everyone has a different response. There is absolutely no reason for you not to return to sewing and be more comfortable as you do. Some others have suggested to have some handwork set aside for the time being. That is what I did; I didn't quilt at the time, but had lots of crochet yarn and patterns at hand. Good Luck.