How long do i have to wait to use an elliptical with a meniscus tear?

It depends...: If you had surgery to repair a tear, you should avoid weight bearing exercise for at least 8-12 weeks. If you had the torn part removed, you could get back to it sooner. If you have not had surgery, consult your orthopaedist.

Ask for protocol: Did you have an arthroscopic menisectomy (removal) or repair? In my patients that have an isolated meniscal repair i suggest riding a bike at 4-6 weeks with a high seat. If a menisectomy is performed recovery may be faster, and with a meniscal transplant things progress slower. You should ask your physician for info on their protocol...