A thigh strain or quadriceps strain is a tear in one of the quadriceps muscles at the front of the thigh. It can range from a mild discomfort to a full blown tear of most of the muscle, resulting in severe pain and inability to walk. Treatment includes rest and ice in the acute stage followed by stretching and strenghening rehabilitation exercises.
Front thigh pain
The rectus femoris is one of the powerful quadriceps muscles at the front of the thigh. A strain or tear in the tendon can occur at its origin at the front of the hip. An avulsion strain (or fracture) is when the tendon tears at its attachment, pulling a small fragment of bone with it. Tendinopathy or tendinitis will have occurred gradually through overuse or a strain that has failed to heal
Myositis ossificans can occur as a complication of not treating a contusion correctly and involves a small growth of bone within the muscle. It usually occurs a while after a severe impact to the knee that causes internal damage, which is subsequently left untreated.