What is runners knee?

Tendonitis. "runners knee " is a broad term that generally incorporates illiotibial band( it) and patellar( kneecap) tendinitis . " jumpers" knee is a term used for isolated patellar tendonitis. Ors try to identify the tendon that is inflamed and avoid( generally) a broad non- specific term like " runners knee"... !btw some actual distance runners who run alot of hills in training get it band(outside) ten's..