Conversation: The conversation between human and AI assistant.
[|Human|] I stepped wrong and twisted my left ankle while walking to my car during my work day. I hit the asphalt with both knees, mostly my right knee though. Both knees are scrapped, the left is slightly swollen but the right is swollen and painful. It hurts to push the break on my car, or the gas. There is very little bruising though. The pain is not only on the patella, but it is behind my knee and extends part way up my thigh. Wouldn t it be discolored or more obvious if there was a fracture or meniscus tear?
[|AI|]  Hi, thank-you for providing the brief history of you. As the mechanism of injury suggest it can be a small fracture or a ligament sprain. As the pain is more at the posterior aspect of the knee joint it looks to me more of a ligament sprain. Due to ligament sprain there might be swelling and pain but no discoloration of the skin. Using a knee brace for support initially should help reduce the swelling and also the pain. Ligament sprains heals on their own and does not need any medication. Regards Jay In Chat Doctor.