In reply to David Kirsfelds:
Didn't you ask your physio?
If it's meniscal I would tend to rest it so probably using the crutches until walking doesn't aggravate it, obviously you can also use the crutches to do partial weight bearing as directed by your physio/sports docttor. You usually get an idea from the amount of limp you have, but you also have to factor in any pain relief you are taking. Once the straightening is recovered then the walking will be easier.
The meniscus can be quite sensitive for a few weeks, with a minimum of force/movement aggravating it for a day or two. In non-minor cases this can be for 4-6 weeks, with the thing taking 8-12 weeks to fully heal, if not longer. The general advice is to avoid surgery if you can and if you can't repair it rather than chop it if viable, but see what your scans, physio and doctor say. Hope that helps.