This might look like some sort of loom for making rugs, but in actuality someday it might be knitting new cartilage for the knee you mangled on your ski trip out to Breckenridge. By loading up with stem cells, the giant "scaffold" could weave real cartilage for later surgical implantation into patients.

This is still a few ways off — clinical trials probably won't start for another 4 or 5 years — but it's pretty incredible that we're even that close to something like this. What's next, machine-grown muscles? If you're too lazy to go to the gym, just have the fancy scaffold knit you up some pecs and biceps. One can only hope… — Adam Frucci

Duke, via Medgadget