Thanks for the reply Henner, that helps.
I have my doubts about the value for this particular child. She also has a rod for Wikipedia reference-linkscoliosis and windswept deformity.

I have not used theratogs at all but now thinking they would be of good value for a 5 yr old with very low tone to help give position awareness and sense of stability. He does not yet walk independently, but I feel has the potential.

Any comments?