The muscle belly appeared to be completely detached from its proximal tendon (direct head), but normal in its substance ... Concentric power was restored to both the quadriceps and hamstrings after ...

There was no history of use of anabolic steroids, previous local steroid injections, or tendinitis. A clinical diagnosis of bilateral quadriceps tendon rupture was made, and the patient was admitted ...

Together with the kneecap, quadriceps tendon, and the quadriceps muscle ... in which the entire tendon is ruptured and requires surgical repair. Patellar tendonitis and tendinosis usually cause ...