The patellar tendon is the band-like tissue that connects ... fluid-filled sac called the bursa, which sits between the ITB and the outside of the femur. When the ITB is tight, the bursa gets ...

Medically reviewed by Scott Zashin, MD Knee pain at night is a common condition caused by injury, arthritis, bursitis, gout, and more. When it happens at bedtime, it can also lead to insomnia, which ...