It wouldn't apply to bone problems, but they had a medical segment on
the news this week about a procedure where they harvest some of your
cartilage, grow it in the lab for 6 weeks, then replace the new bigger
cartilage back in your joint. It's portrayed as a less invasive
alternative to many of the joint replacements being done now for worn
out joints. Made the news because that 41 year old woman olympic
swimmer had a knee done.