sorry to hear about anyones knee injury. Sign up for the new healthcare if you don't have ins, you have to anyway if you are an adult. The acl replacements usually last about 10 years, my acl was made from a piece of ligament that goes over the knee cap. . I had lateral release done on the opposite side to keep the knee cap from being pulled off to one side.
You cannot repair a ligament. Meniscus can be shaved to alleviate the pulling and additional tearing . The longer you wait the more damage is done to the joint. You can also do leg curls, to build your thigh muscles, have the PT show you , one your tummy on the ^ shaped table and weights on your calves and you curl up . Builds thighs and butt . Don't overdo any excersize . I wish the best of luck. I injured my knee in 1970 , waited 20 yrs for the surgery to improve . And until I had health ins. My knee is full of scar tissue now, and the ligaments and tendons look like mush.. and it constantly hurts .. so don't wait to long !