Yep. I bought my KDX on 12/31, rode it the first time on 1/1, and banged it up then. Like I said, it wasn't really bad - I pretty much had full range of motion and everything, but it didn't improve. My regular doctor tried to tell me it was just tendonitis, and he didn't want to refer me to a specialist. When I finally got to the specialist, torn ligament was the diagnosis, and the surgery confirmed it. Doc is pretty confident it is all fixed. I hope so, because if it isn't, the next procedure is pretty ugly.
So yes, I have riding this whole time with that injury. Doc says to stay off the bike for about a month. I should be ready to go the middle of May.
I will be going to San Diego to visit my family, and I am bringing the bikes. Just as soon as Ryan's school lets out. He can't wait.
Scott