Does anyone know if I just strained my knee or something else? I was riding this past sunday and was going around a turn and the bike slid out from under me and when I fell my left foot hit the ground first and my leg twisted. I heard a small poping sound that sounded like it went from the inside of the knee to the outside part of the knee. When I stood up it was sore (had to limp) It swoll a little on the inside part of my knee and after two days now it is hard for me to bend my leg back all the way back to my hamstring(I can with a little help of my arm but it is a stiff a sore). I have been icing it and taking ibuprofen but it is still hard to bend it all the way back. I can stand on it by its self and straighten it all the way and flex my quad. When it first happened i had to limp but now after two days I can walk pretty well but it is still sore and is a little weak when applying pressure to it side to side(hurts a little).