This was a very exciting title but a very dodgy article. It references two independent areas of active research but concludes one doesn't work in practice yet a

This was a very exciting title but a very dodgy article. It references two independent areas of active research but concludes one doesn't work in practice yet and the other (which is buried in this report [0] from Columbia from 2013) works only in rats with stem cells and growth factors. So surely, either the title is misleading about this being viable for humans yet, or there is more progress on the subject beyond what is here and there is a better and more recent source available. Either way, an exciting topic I've also been wondering about for a long time. [0] https://techventures.columbia.edu/news-and-events/latest-news/recruiting-body-help-regrow-new-joints https://techventures.columbia.edu/news-and-events/latest-new...