My dad had both replaced a year or so ago, and the best advice I had for him was this: During your recovery, get in the pool and swim. That way you have a total body workout that will be NON IMPACT!! It will also help you get rid of any excess weight you may gain while you are off your feet. Lucky for you, you only have one looking at a single replacement. He had both done, as did my aunt. She had both done at the same time, and he wished he had done that. One painful recovery instead of two. Talk to Dr. Mark on here, and he will be able to answer all kinds of questions for you as well. Good luck, and keep us all informed.
We have two companies of Marines running rampant all over the northern half of this island, and three Army regiments pinned down in the southwestern corner, doing nothing. What the hell is going on?