Patellar tendon rupture

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Patellar Tendon Rupture

A patellar tendon rupture is a serious injury that typically requires immediate medical attention and intervention. This condition occurs when the tendon that connects the kneecap (patella) to the tibia (shin bone) tears or ruptures.

File:Patellar tendon rupture.jpg
Patellar tendon rupture

Causes[edit | edit source]

Patellar tendon ruptures are often caused by a sudden, violent strain on the knee. This can occur during activities that involve a rapid acceleration or deceleration of the body, such as jumping or landing from a jump. Other factors that can contribute to a patellar tendon rupture include chronic diseases like diabetes and rheumatoid arthritis, as well as certain medications, such as corticosteroids and fluoroquinolones.

Symptoms[edit | edit source]

The primary symptom of a patellar tendon rupture is a sudden and severe pain in the knee, often accompanied by a tearing or popping sensation. Other symptoms may include:

  • Inability to straighten the knee or lift the foot
  • Swelling and bruising around the knee
  • A visible gap in the front of the knee where the tendon has ruptured
  • Difficulty walking or inability to bear weight on the affected leg

Diagnosis[edit | edit source]

Diagnosis of a patellar tendon rupture typically involves a physical examination and imaging tests. During the physical examination, the doctor will check for a gap in the tendon, assess the knee's range of motion, and may apply pressure to the knee to see if it can be straightened. Imaging tests, such as an X-ray or MRI, can provide a detailed view of the knee and confirm the diagnosis.

Treatment[edit | edit source]

Treatment for a patellar tendon rupture usually involves surgery to reattach the tendon to the kneecap. This is typically followed by a period of physical therapy to restore strength and mobility to the knee. In some cases, nonsurgical treatment may be an option, but this is usually reserved for patients who have significant health risks or a low level of physical activity.

Prognosis[edit | edit source]

With prompt treatment and proper rehabilitation, most people can return to their previous level of activity within 6 to 9 months. However, some may continue to experience weakness and reduced function in the affected knee.

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Contributors: Prab R. Tumpati, MD