Margaret,
Is it possible that you are referring to "cavus foot"? I've never heard of "cavo foot". If so, this might be why no one has been able to offer you any information.
If cavus foot is the problem, I've enclosed links to two web sites with information that might help you. Good luck with your son.
--Kathy
[url="http://www.boa.ac.uk/bofss/cavusfor.htm"]http://www.boa.ac.uk/bofss/cavusfor.htm[/url]
(you'll need to make sure this second link is all together without spaces in your browser's "address" line)
[url="http://www.dynomed.com/encyclopedia/encyclopedia/pediatric_orthopedics/Cavus_Foot_Deformity.html"]http://www.dynomed.com/encyclopedia/encyclopedia/pediatric_orthopedics/Cavus_Foot_Deformity.html[/url] |