I completely tore my rear leg ACL in 2000. Rode '01 with a brace (CTI2) then rode brace free for '02. I had My surgery done (Dr. Moran, Concord Orthopedics, Concord NH; He did several USST bump skiers knees) about 3 month after the injury and missed the best season NH had had in ages while in rehab (after which I needed a different type of rehab - it sucks spending a whole winter in the bar while everyone comes in covered in powder, grinning from ear to ear).
anyway, I went with a Patellar Tendon Graft, due to chronically tight hamstrings, and the knee is now rock solid. I did get my 2nd opinion though, and he concurred immediately. Rehab Sucks, but you should definitely run the entire course of treatment and continue strgthening after.
No problem with the rear leg powering through turns, or anything like that.
Good luck!