The LCL assists stabilize the knee against forces that thrust the knee inward. Like MCL injuries, LCL accidents can take place resulting from direct effects or too much stress to the knee but are a lot less common. Ruined bone and cartilage from a thighbone, shinbone and kneecap are replaced 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