I tore the ligament in my finger one time, my son threw a ball at me and it hit the finger just in the right angle and it snaped the ligament. One doctor told me it would need surgery and it's a very complicated surgery and you may lose feelings in that finger. So on the way out of the doctors office a NURSE said just put your finger in a splint, use 2 popsicle sticks and tape it up and leave it like that for a week. SO I did that and my finger was all better, the ligament healed itself.
My point of the story is maybe you need to not use your legs for a couple of weeks to the ligaments a chance to heal. Yes I know easier said than done. But just thought I would add my story.