Quadriceps tendons work with the muscles in the front of your thigh, to straighten your leg. Quadriceps tendon tears can be either partial or complete and are more common among running or jumping athletes. A complete tear of the quadriceps tendon is a disabling injury that usually requires surgery to regain full knee function. Artelon has been trusted in hundreds of Quadriceps tears. The strong nature of the Artelon material allows for the Quadriceps to heal completely without compromise.