Anyone heard of the Filum Terminale surgery for Chiari?

I’m just reading about this approach but it seems like a worthwhile cure for some of us, has anyone here had any experience w/ this? Here’s some reading:

http://www.institutneurologicbcn.com/en/inb_neurocirug_arnold-chiari.htm

http://ezinearticles.com/?New-Studies-on-Filum-Terminale-Offer-Alternative-Chiari-Malformation-Treatment&id=6390774

http://www.institutchiaribcn.com/index.php?arxiu=fitxa_document&id=19057&idioma=5