I had my left knee replaced today and everything seemed to go well. The spinal was painless and I was surprised at how quickly I was awake after the surgery. I had to drink a lot of water and coffee to go to the bathroom so I could leave the surgical center; I'm sure that will catch up to me later tonight. The Dr. said everything went well and he fixed the alignment of my lower leg. He said getting my full extension will be the most difficult part (I haven't been better than 5-10 degrees in well over a decade). My hamstring and calf muscles will need a lot of stretching.