Pseudogout is commonly mistaken for gout but it's due to calcium-containing crystals that establish while in the joint fluid. Knees are the most common joint afflicted by pseudogout. It has identical inflammatory indications to gout however the uric acid levels are certainly not elevated. Patellar tendinitis is a standard overuse https://www.theorthopaedicandpainpractice.com/do-i-have-a-knee-tendon-injury/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB