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Understanding Patellar Tendonitis: Causes, Symptoms, and Treatment


Patellar tendonitis, also known as jumper’s knee, is an inflammation of the patellar tendon, which connects the kneecap (patella) to the shinbone (tibia). This tendon is responsible for extending the knee, and it is used in activities such as running, jumping, and kicking.


The main symptom of patellar tendonitis is pain in the front of the knee, just below the kneecap. The pain may be sharp or dull, and it may worsen with activity. Other symptoms may include:

  • Swelling and tenderness around the kneecap
  • Difficulty straightening the knee
  • A creaking or popping sound in the knee
  • Pain when running or jumping
Patellar Tendonitis Symptoms


Patellar tendonitis is an overuse injury, which means that it is caused by repetitive stress on the tendon. This can happen from activities such as:

  • Running
  • Jumping
  • Kicking
  • Squatting
  • Climbing stairs

Risk Factors:

Certain factors can increase your risk of patellar tendonitis, including:

  • Age: Patellar tendonitis is most common in young adults, between the ages of 15 and 35.
  • Gender: Women are more likely to develop patellar tendonitis than men.
  • Occupation: People who have jobs that require them to be on their feet for long periods of time or to climb stairs are at increased risk.
  • Sports participation: Athletes who participate in sports that involve running, jumping, or kicking are at increased risk.
  • Previous knee injuries: People who have had previous knee injuries are also at increased risk.


There are a number of things you can do to help prevent patellar tendonitis, including:

  • Warm up before activities: Warming up your muscles will help to prepare them for activity and reduce the risk of injury.
  • Cool down after activities: Cooling down after activities will help to reduce muscle soreness and inflammation.
  • Gradually increase your activity level: If you are starting a new exercise program, gradually increase your activity level to avoid overstressing your muscles.
  • Cross-train: Cross-training will help to strengthen different muscles and reduce the risk of overuse injuries.
  • Wear supportive shoes: Supportive shoes can help to reduce stress on your knees.
  • Maintain a healthy weight: Excess weight puts more stress on your knees, increasing the risk of injury.


The treatment for patellar tendonitis will depend on the severity of your symptoms. In most cases, the following treatments will be sufficient to relieve your pain:

  • Rest: Avoid activities that cause you pain.
  • Ice: Apply ice to the affected area for 15-20 minutes at a time, several times a day.
  • Compression: Wrap the affected area with an elastic bandage to reduce swelling.
  • Elevation: Elevate the affected area above the level of your heart to reduce swelling.
  • Over-the-counter pain medication: Over-the-counter pain medication such as ibuprofen or acetaminophen can help to reduce pain and inflammation.
  • Physical therapy: Physical therapy can help to strengthen the muscles around your knee and improve your flexibility.

In some cases, other treatments may be necessary, such as:

  • Corticosteroid injections: Corticosteroid injections can help to reduce inflammation.
  • Platelet-rich plasma (PRP) therapy: PRP therapy involves injecting your own blood platelets into the affected area to promote healing.
  • Surgery: Surgery may be necessary in severe cases where other treatments have not been successful.


Q: What is the outlook for patellar tendonitis?

A: The outlook for patellar tendonitis is generally good. With proper treatment, most people will make a full recovery. However, it is important to follow your doctor’s or physical therapist’s instructions carefully to prevent the injury from recurring.

Q: How can I prevent patellar tendonitis from recurring?

A: To prevent patellar tendonitis from recurring, you should continue to follow the same prevention tips that you followed to prevent the injury in the first place. You should also make sure to warm up before activities, cool down after activities, and gradually increase your activity level.

Q: When should I see a doctor for patellar tendonitis?

A: You should see a doctor if your pain is severe, if it does not improve with home treatment, or if you have other symptoms such as swelling, redness, or warmth in the affected area.

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