I didnt have knee replacement, but i did triple crown my knee, acl,mcl,meniscus. I went on advice from my dr. To do pre surgeryrehab. Rothman did it, did a fine job. Other people i talked to with similar situation said the pre surgery rehab works wonders. Like the other posts, be diligent my friend with the rehab. It pays off, and try not to succomb to the pills. Prayers going out you and ty for your service in the military.
Side note, i dont know if there going to offer you a machine that fills up with ice and water and forces cold water thru a hose which is attached to a velcro bag that wraps around the knee, pumps it on and off, ac power. My buddy recommended it, so i bougt it. It cost me 100.00, my insurance didnt cover. It is worth it! It helped greatly reduce swelling. My wife just filled it with ice and let the pump do its work. I still do my snowboarding and other activities, and when my knee is sore i put that on for 30 and its a world of difference
Mike