Physical exercise programmes might help the tissues in and across the affected tendon. Steroid injections, which can be given for tendinitis elsewhere, are commonly avoided in patellar tendinitis as you will find stories of threat of tendon rupture as a result of corticosteroids During this space. Surgery could be required https://www.theorthopaedicandpainpractice.com/what-should-i-do-if-i-have-a-collateral-ligament-injury-of-the-knee/?_gl=1*xbbxlb*_up*MQ..&gclid=Cj0KCQjwkt6aBhDKARIsAAyeLJ2krYJSOuy5mZksrNqH-VDjQwW1ScD49yD8BUWysDG6u6bJPCSbXVUaAuCPEALw_wcB