Patellar tendinitis is an injury that affects the tendon connecting your kneecap (patella) to your shinbone. The patellar tendon plays a pivotal role in the way you use your leg muscles. It helps your muscles extend your knee so that you can kick a ball, run uphill and jump up in the air.

Patellar tendinitis is most common in athletes whose sports involve frequent jumping — such as basketball and volleyball. For this reason, patellar tendinitis is commonly known as jumper's knee. However, even people who don't participate in jumping sports can experience patellar tendinitis.

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

Mar. 07, 2012

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