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Patellar tendinitis

Date: 2024-05-01

Overview

Patellar tendinitis is an injury to the tendon connecting your kneecap (patella) to your shinbone. The patellar tendon works with the muscles at the front of your thigh to extend your knee so that you can kick, run and jump.

Patellar tendinitis, also known as jumper’s knee, is most common in athletes whose sports involve frequent jumping — such as basketball and volleyball. However, even people who don’t participate in jumping sports can get patellar tendinitis.

For most people, treatment of patellar tendinitis begins with physical therapy to stretch and strengthen the muscles around the knee.

 

Symptoms

Pain is the first symptom of patellar tendinitis, usually between your kneecap and where the tendon attaches to your shinbone (tibia).

Initially, you may only feel pain in your knee as you begin physical activity or just after an intense workout. Over time, the pain worsens and starts to interfere with playing your sport. Eventually, the pain interferes with daily movements such as climbing stairs or rising from a chair.

  • Patellar tendinitis

Patellar tendinitis causes pain in the patellar tendon, which runs from the kneecap (patella) to the shinbone (tibia).

 

Causes

Patellar tendinitis is a common overuse injury, caused by repeated stress on your patellar tendon. The stress results in tiny tears in the tendon, which your body attempts to repair.

But as the tears in the tendon multiply, they cause pain from inflammation and weakening of the tendon. When this tendon damage persists for more than a few weeks, it’s called tendinopathy.

 

Risk factors

A combination of factors may contribute to the development of patellar tendinitis, including:

  • Physical activity.Running and jumping are most commonly associated with patellar tendinitis. Sudden increases in how hard or how often you engage in the activity also add stress to the tendon, as can changing your running shoes.
  • Tight leg muscles.Tight thigh muscles (quadriceps) and hamstrings, which run up the back of your thighs, can increase strain on your patellar tendon.
  • Muscular imbalance.If some muscles in your legs are much stronger than others, the stronger muscles could pull harder on your patellar tendon. This uneven pull could cause tendinitis.
  • Chronic illness. Some illnesses disrupt blood flow to the knee, which weakens the tendon. Examples include kidney failure, autoimmune diseases such as lupus or rheumatoid arthritis and metabolic diseases such as diabetes.

 

Prevention

To reduce your risk of developing patellar tendinitis, take these steps:

  • Don’t play through pain.As soon as you notice exercise-related knee pain, ice the area and rest. Until your knee is pain-free, avoid activities that put stress on your patellar tendon.
  • Strengthen your muscles. Strong thigh muscles are better able to handle the stresses that can cause patellar tendinitis. Eccentric exercises, which involve lowering your leg very slowly after extending your knee, are particularly helpful.
  • Improve your technique. To be sure you’re using your body correctly, consider taking lessons or getting professional instructions when starting a new sport or using exercise equipment.
view:26updated date:2024-06-26
view:26updated date:2024-06-26