My Vmo Is Very Painful When Walk From My From

My vmo is very painful when walk from my from my knee to my groningen. I'm broke my femur by my hip I have a ride or nail as a call it from my hip to my knee and I have another part from my hip to my hip ball holding everything together. I have been doing PT but the other day I don't know what happened I have severe severe pain and in the area of the VMO and I don't know why.