How to tell if i retore my acl?

Tore acl: If you felt a pop and your knee feels unstable there is a good chance that you tore the acl graft. You will need an examination and MRI to confirm.

A good exam then MRI: Although most people think a MRI is necessary to diagnose a torn acl, most knee specialists can tell from a couple of simple test that can be done. With a high suspicion, a MRI is often then ordered and used then to confirm the findings of the exam. My suggestion for you is to see a md who is well trained and experianced in acl's and even revision surgery. Get their opinion.