I too, am worried about arthritis. I had significant damage to the medial menicus, and the Doc had to remove most of it. There was also some slight damage to the articular cartilage. He tested out the knee, and is sure the graft is fine; I have not broken protocol, and haven't twisted the knee or anything. He is sure the pain and swelling is not related to the graft. The knee is making all sorts of "crunchy" noises, too.
I am 58, and had a total knee replacement done on my other knee in 2007. I injured it in High School, and had 30+ years of wear and tear on it, with significant arthritis, so I am familiar with that scene. This was always my "good" knee, and it is devastating to have injured it, especially when it was so stupid...just a 16" jump off a platform.
I know what the future holds for the knee, and hope I can get some functional years after the ACL reconstruction. I know this is an investment in the future, and it will get better. Right now, I am working on lowering my expectations. It IS a long haul!
I appreciate this forum, as we are all sharing our stories and supporting each other. Most people have no idea what is involved with this surgery and recovery. They see you two months later and wonder why you are still in pain and gimping around.
Good luck with the brace; my Dr does not advocate use of a brace, other than at night for the first two weeks. OMG...I hated that! Sleep? Forget it. One of my best moves was to get a Walkman and download books on tape. It did not require an effort to read, and often I would fall asleep while listening. Now, it is my salvation as I spend 30 minutes a day riding the "bike to nowhere". I can tune out and pedal away.
E