Ponseti casts not at 90 degree angle - ??

[Guest guest]

My one-month-old got her first set of Ponseti casts today. But, her

legs are not set at a 90 degree angle. They are slightly bent and her

legs are not set to lay open like I've seen in photos. Rather, her

knees point straight up to the sky. I've read on Dr. Ponseti's

website that the casts have to be set at the 90 degree angle for the

most effective results. I am concerned that this doctor " modifies "

Dr. Ponseti's method.

What are other parents' observations of their child's casts? Does

anyone have knowledge of a more detailed explanation as to why the

casts have to be set at 90 degree angle?