Did the same last year and after healing time decided that a small hinged brace ( wetsuit material, velcro, hinged alum support ) would not only give good support for the knee but also good mental support for peace-of-mind. I bought it for about $80-90 ( I think ) from a orthopedic shop in Myaree - a couple of shops up from WSP.
Reg from WSP knows the place if you can't find it.
Best thing since sliced bread for the knee and mind.

