The ACL stabilises the knee for reducing, twisting and leaping and pivoting activity. The anterior cruciate ligament is in the center of your knee joint. After you tear an ACL, you can usually come to feel or hear a pop, really feel the knee change away from area and produce 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