Interesting New Bone replacement

I thought the article was very interesting

http://news.bbc.co.uk/2/hi/europe/8446637.stm

I don't know if the new "bone" implanted would "grow" as a person grows. Also there are often also ligament and other issues with PFFD, but it will be interesting to see what will come out of it in 5 years or so which is when they expect human trials.