Is there treatment for this condition post birth?
Other than closure, I really don't know the answer to that.
When our son was born, the Drs. were quite clear in apprising us that, in addition to existing neurological damage, closure carried with it significant risk of slicing neuro pathways that were invisible even with the microscope they were using during the surgery. Our son was 7 hours old at the time of the surgery.
Subsequent to the surgery he suffered cardiac arrest. Was read his last rites. Severe clinically diagnosed mental retardation resulted, but he survived.
A year and a half later he went into grand mal seize for five hours. Again, read his last rites. Again, he survived.
He is now 45 and in a group home, though we had him with us for 41 years.
Yes surgical correction is possible, but much harder on the child.
A lot more opportunity for infection and outside physical trauma.