Replying to Bindings after acl tear

Been off the skis nearly 20 months now after tearing my acl and absolutely shredding my medial meniscus. I'm gonna try and get back on skis in the next 2 months but my knee's still in a bad way and I want to play it as safe as possible. I was thinking of getting some pivots but are they really worth the extra weight/money in terms of knee safety? I realise knee bindings would be best for this purpose but no one else really seems to use them and not very easy to get here.
If they really do make a difference I'll go for it, but if not I've got a pair of griffon 13's I can just slap on.
Let me know what you think kind people of newschoolers.