Patellar Tendonitis also know as jumper’s knee is an injury to the tendon connecting your kneecap (patella) to your shinbone. Anyone can get Patellar Tendonitis but, it is most common in athletes whose sports involve frequent jumping such as volleyball, basketball, soccer, tennis, or track.
De Quervain’s Tenosynovitis is a painful condition that affects the tendons on the thumb side of your wrist. Tendons are rope-like structures that the muscle uses to pull the bone. You can see them on the back of your hand when you straighten your fingers.