PT will also help you strengthen your leg in case you have to go in for surgery. Once you go for surgery you will lose some muscle mass from non use and make it harder to recover. Kaputt_Knee is correct that with focused physio it can help your maltracking issues. If you have not had any subluxations you may not need ligament repair to correct the problem. I have been dealing with subluxations for 15 years, if I did not go in for physio after my surgery my body, which has been compensating for my bad knee for those 15 years, would still continue to do that and I would never have full reliability in what my knee can do. It may take awhile but keep with it and make sure to do your exercises at home!