Patellar tendinitis (patellar tendinopathy, also known as jumper's knee and Sinding-Larsen-Johansson disease), is a relatively common cause of pain in the inferior patellar region in athletes.
It begins as inflammation in the patellar tendon where it attaches to the patella and may progress by tearing or degenerating the tendon. Patients present with an ache over the patella tendon. Most patients are between 10 and 14 years old. Magnetic resonanc...
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Patellar tendinitis (patellar tendinopathy, also known as jumper's knee and Sinding-Larsen-Johansson disease), is a relatively common cause of pain in the inferior patellar region in athletes.
It begins as inflammation in the patellar tendon where it attaches to the patella and may progress by tearing or degenerating the tendon. Patients present with an ache over the patella tendon. Most patients are between 10 and 14 years old. Magnetic resonance imaging can reveal edema (increased T2 signal intensity) in the proximal aspect of the patellar tendon.
It is an overuse injury from repetitive overloading of the extensor mechanism of the knee. The microtears exceed the body's healing mechanism unless the activity is stopped.
The injury occurs in many athletes, but is most common in sports such as; baseball (catcher), bowling, golf (reading putts), soccer, rugby, volleyball, track & field, freerunning, parkour, American football, basketball, or gymnastics which require explosive movements....
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