The vastus medialis, otherwise known as the vastus medialis oblique (VMO), is a teardrop-shaped muscle in the front of your thigh that helps extend the knee and stabilize the kneecap. It is one of the ...

The problem is caused by inflammation at the point where the tendon from the lower part of the knee cap (the infrapatellar tendon) meets the top of the tibia at a bump on the front of the bone ...