Back in late June somebody ran into me on a bike path. I came off the bike on the left hand side; I didn't hit the ground, but I twisted my leg quite a bit trying to avoid that. Not hurt badly, left knee a little sore, the bike disk was damaged, but I thought everything was OK. In subsequent weeks and months, my knee has become progressively more sore and a little swollen. X-rays last week revealed no arthritis, some fluid was drained and it looked OK, a shot of cortisone was given, and I was rescheduled for an appointment with a doctor in December with an MRI. The nurse specialist who examined me said he thought the meniscus might be torn or there might be calcium crystals in the knee causing problems. I am almost 71 and I enjoy biking a great deal. Can you bike with a torn meniscus? The "bicycling motion" seems OK, but the "side to side" movement of the knee hurts, if I am describing it properly. I figured that surely somebody here has goine through somehting like this and I would appreciate any insights you could give to me. Thanks.