The patellar tendon connects the kneecap to the lower leg bone. Tendinopathy is an injury to the tendon. It can cause pain, swelling, and limited movement. The injury can include:
- Tendonitis—inflammation of the tendon
- Tendinosis—tiny tears in the tendon tissue with no significant inflammation
Treatment depends on the severity of the injury.
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Tendinopathy is generally caused by overuse of a muscle-tendon unit. Over time, the strain on the tendon causes structural changes within the tendon.
Patellar tendinopathy occurs from overuse of the patellar tendon. Overuse may be caused by any activity that requires:
- Intense running
- Frequent stops and starts
- Frequent impact to the knee
- Tendon weakness from certain diseases
Last reviewedApril 2013by Michael Woods, MD; Brian Randall, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.