I'm a corrections officer for TDCJ. Been doing it since I was 18, and I'm 51 now. I had a total knee replacement done on my left knee right before I retired in 2013. My recovery time was about 9 weeks. It made a huge difference in that I could walk again. And, after retiring I took about a year off. After the year off, I went back to work in TDCJ as a corrections officer again in 2014. I'm currently at the Carole Young Unit in Texas City, Texas.
I will tell you that the hardest part for me was standing long periods on it, or sitting long periods with it. In both circumstances my knee would get real stiff and sore. As long as I'm walking around on it I'm good. It hasn't slowed me down much at all. In fact, during our annual training PAT test I can out do a lot of the young bucks who think their hot chit. I'm usually one of the oldest in the classes.