A quadriceps tendon rupture occurs when the tendon connecting the quadriceps muscle to the kneecap (patella) tears. This injury often results from sudden force or trauma, such as during sports activities or falls. Symptoms typically include pain, swelling, and difficulty straightening the knee. Diagnosis is usually confirmed through a physical examination and imaging tests like an MRI or X-ray. Treatment often involves surgery to repair the tendon, followed by rehabilitation to restore strength and mobility. Early intervention can lead to better outcomes and a quicker return to normal activities.