Patellar Tendonitis

Patellar tendonitis (often called jumper’s knee) is a common injury that affects athletes, active individuals, and even those who simply engage in repetitive movements. This condition occurs when the patellar tendon, which connects the kneecap to the shin bone, becomes irritated or inflamed. If left untreated, patellar tendonitis can progress from mild discomfort to severe pain that limits daily activities.

At Orthopedic Specialists & Sports Medicine, with convenient offices in Granville and Coshocton, Ohio, our team of experienced orthopedic surgeons and sports medicine providers offers advanced diagnostics and personalized care for knee injuries. If you’re experiencing knee pain or suspect you may have patellar tendonitis, contact us today to get started on a treatment plan designed to help you stay active and pain-free.

What is Patellar Tendonitis?

Patellar tendonitis (also known as patellar tendinitis or patellar tendinopathy) is an overuse injury of the patellar tendon. This tendon plays a critical role in extending the lower leg by transmitting force between the thigh muscles and the shin bone. When subjected to repetitive stress from sports activity, the tendon can develop tiny tears, leading to pain and inflammation.

Because it is so common in athletes, particularly basketball players, elite volleyball players, and runners, patellar tendonitis is often referred to as jumper’s knee.

What Causes Patellar Tendonitis?

Patellar tendonitis usually develops due to repeated stress on the patellar tendon. The most common risk factors include:

  • Engaging in frequent jumping or sprinting during sports activities
  • Imbalances or weakness in the thigh muscles
  • Increased body weight that puts more stress on the kneecap and tendon
  • Sudden changes in physical activity levels without allowing time to increase intensity gradually
  • Improper training surfaces, such as hard courts or uneven ground
 

Over time, these stresses can lead to small tears or even a patellar tendon tear, which can cause worsening pain.

A hiker with pain in her knee from repetitive use in Ohio.

What Are the Symptoms of Patellar Tendonitis?

The hallmark jumper’s knee symptoms include:

  • Pain and tenderness directly below the kneecap
  • Pain when climbing stairs, kneeling, or rising from a seated position
  • Swelling and inflammation around the patellar tendon
  • Worsening discomfort during sports activity
 

In severe cases, patients may feel pain during everyday activities, not just exercise.

How is Patellar Tendonitis Diagnosed?

Diagnosis begins with a medical history and physical exam to evaluate clinical signs and pinpoint areas of tenderness. If needed, imaging tests such as X-rays or magnetic resonance imaging (MRI) may be ordered. MRI scans help show the extent of damage, reveal tiny tears, and determine if there is a patellar tendon strain or patellar tendon tear.

If you’re experiencing ongoing knee pain, you can learn more about treatment options on our knee specialties page.

Potential Complications

When untreated, patellar tendonitis can progress from short-term pain to long-term tendon damage. Potential complications include:

  • Chronic patellar tendinopathy with persistent inflammation
  • Large or worsening tendon tears that may require surgery
 

Because the patellar tendon connects vital structures of the leg, neglecting proper care can result in prolonged recovery and more invasive treatment needs.

How is Patellar Tendonitis Treated?

Most cases respond well to conservative measures, which include:

  • Rest and activity modification to allow healing
  • Ice therapy to reduce swelling and relieve pain
  • Physical therapy with a licensed physical therapist
  • Eccentric exercises and strengthening on a decline board to restore tendon function
  • Physiotherapy management techniques for mobility and strength
  • Anti-inflammatory medications for short-term pain relief
 

In cases where conservative care is not enough, advanced treatment options may include:

  • Steroid injections (used with caution due to tendon weakening risks)
  • Platelet-rich plasma (PRP) therapy to promote healing
  • Surgery in severe cases of patellar tendon tear
 

The ultimate goal is to create a personalized treatment plan that restores strength, reduces pain, and enables patients to return to physical activity safely.

How Can I Prevent Patellar Tendonitis?

Prevention focuses on reducing risk factors and building tendon resilience. Steps include:

  • Warming up properly before sports and gradually increasing intensity
  • Strengthening leg muscles with resistance training
  • Incorporating eccentric exercises under the guidance of a physical therapist
  • Avoiding sudden changes in training routines
  • Maintaining a healthy body weight to reduce stress on the tendon
 

By caring for the kneecap and surrounding muscles, you can lower the likelihood of developing this common injury.

Take the First Step Toward Pain-Free Movement

If you are struggling with patellar tendonitis or any form of knee pain, don’t wait for symptoms to worsen. At Orthopedic Specialists & Sports Medicine, our dedicated team in Granville and Coshocton, OH, provides advanced care ranging from conservative therapies to innovative sports medicine treatments.

Whether you’re an athlete or simply want to move without discomfort, we are here to help you return to an active, pain-free lifestyle. Contact us today to schedule your consultation and take the first step toward recovery.

Medically reviewed by Alex Tancevski, MD