The quadriceps tendon connects the large thigh muscle to the top of the kneecap and is essential for straightening the knee. Injuries range from tendinitis to a complete rupture.
Tendinitis develops from repetitive overuse. A complete rupture usually occurs from a sudden, forceful contraction of the thigh muscle against resistance — such as trying to catch oneself during a fall — and is more common in patients over 40 or those with underlying tendon weakness.
Pain just above the kneecap; a complete rupture causes sudden pain, inability to straighten the knee or maintain a straight leg raise, and often a palpable gap above the kneecap.
Tendinitis is managed with activity modification and physical therapy. A complete rupture does not heal without surgery and requires prompt repair to restore the ability to extend the knee.
Think you might have this condition? An accurate diagnosis starts with an exam — schedule a consultation with Dr. Thomson.
Schedule a ConsultThis page is for general educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Every injury is different — always consult Dr. Thomson or another qualified physician for a personalized evaluation.