I haven't heard any mention about the possibility of a meniscus transplant for Roy.  I've heard that surgery may be an option but haven't heard what kind of surgery that would be.  Out of curiousity I was researching meniscus anatomy and discovered that a meniscus transplant is possible and that it is becoming a more popular option for patients that are good candidates.  From what I've read it seems like Roy could be a candidate for the surgery if he doesn't already have previous knee instability or cartilage damage resulting from the lack of meniscus.  It is possible that the surgery wouldn't help Roy (it might be rejected or might not heal), but there is also a chance that it could.  Not many patients have been carrying meniscus transplants for more than 3-6 years, so there isn't a lot of information about the short to long term benefits.  The link below will give you more detailed and accurate information about meniscus transplants.  It seems like this procedure should be considered at this point in Roy's career, especially since he will likely be with the team for the next 5 years unless he retires.  The rest of this Oden-less season and possible lockout next season next year could provide Roy with the time he needs to rehabilitate his knees for a possible return to form.   

http://orthopedics.about.com/cs/meniscusinjuries1/a/transplant.htm