Inflammation of the Quadriceps or Patella Tendon
Inflammation of the quadriceps tendon, also known as quadriceps tendinitis, weakens the tendon. The inflammation may also cause small tears. Quadriceps tendinitis is most common in people who run and participate in sports that involve jumping.
Tendons are strong bands of fibrous tissue that attach muscles to bones. The quadriceps tendon works with the muscles in the front of your thigh to straighten your leg. Small tears in the tendon can make it challenging to walk and participate in other daily activities. A large tear of the quadriceps tendon is a disabling injury. It usually requires surgery and physical therapy to regain full knee function. Quadriceps tendon tears are not common, mostly occurring in middle-aged people who play jumping sports or due to trauma. Similar symptoms can develop in the patella tendon that attaches the kneecap to the shin.