There may be some repair taking place if the dog is kept completely restrained for 6 weeks. Koko had both CCLs torn and they repaired one and she was in her crate for 6 weeks before we took her back to have the other repaired. In the 6 weeks of being in her crate to recover from the first surgery she stopped limping
on the other knee during the recovery. When we had the second one repaired she was ready to go within a week. I still kept her in the crate for 6 more weeks but she did not have the recovery time on the second one that she did on the first. On the first I had to carry her out for a week or so when she needed to potty but with the second she was walking out fine the day she came back from surgery. I have to believe her second knee was to the point that surgery may not have been necessary after the 6 weeks in the crate. I may be wrong about it being
completely well but I do know she had stopped limping on it before we took her for the second repair.

It has been 3 years since her surgery and she has no signs that she ever had knee problems. When she stands still her rear legs quiver but the local Vet thinks that is because of her hip dysplasia.