I don't know.
What worked best was working with the strength bands hooked to my ankle and doing side kicks, both inward and out, front kicks, and back kicks, all with a stiff, locked, knee. Then they had me squeeze a ball between my knees and do hack squats. I could really feel the difference in my knee after a few weeks. But pretty much they tried like 20 different exercises and picked the ones that didn't cause me any pain.
Vastus Medialis Obliquus (VMO) exercises. They can benefit every
snowboarder. Anyone who has had an knee injury more than likely has had to work this muscles strength back up.
I ride: NS Pandora 146 + Salomon Absolute premium Bindings
Stepchild PMS 149 + Nitro Eris Bindings +15 -15
Nike ZF1 5.5 & K2 Contour 5.