The patellar tendon connects the kneecap to the tibia ... of some knee injuries (such as housemaid's knee, a type of bursitis) by preventing further injury to your prepatellar bursae.

Bursitis is the inflammation of the cushioning ... It's not really a disease, but instead inflammation of the area just below the knee where the tendon from the kneecap attaches to the shinbone.

This tendon is what allows you to fully extend ... In extreme cases with persistent symptoms, you may need to undergo surgery. 5. Knee bursitis Where it hurts: It causes pain on the kneecap ...