Unfortunately, a very old post. We usually don't get replies back from ones this old.
Did you ever figure this out? My son is 6 and we are going through the same thing.
My daughters tendon on the back of her foot has stopped growing. That is why we had to therpy, casting for 6 months, leg braces for almost 1 year; with all of this the tendon has stretched to the point where she can walk on her toes. When we are not watching her we catch her walking on her toes. As soon as we say something she is back down on her toes. They are suggesting surgery to extend the tendon on the back of her feet. They say sinces she does not have any other problem metal or physical she does not have cerebral palsy. I have never heard of Idiophatic toe walking.
Did you ever look into neurological/sensory grounds for toe walking?
Toe walking can indicate neurological issues
What are they trying to accomplish with the surgery? Is there a physical reason she walks on her toes?
It could be a mental thing...why are they suggesting surgery?? Are the muscles still not stretched out? I'm assuming she's been cleared of certain medical conditions? Mild cerebral palsy? Does she have a diagnosis, maybe idiophatic toe walking? If you're not convinced she needs the surgery or are unsure. Look into getting a second opinion. Find out if there is more you can do before surgery is your only option left. You absolutely need to find out all your options. Surgery is a big decision but, if it's necessary don't hesitate.