How long have cranial orthosis been used to treat children with positional plagiocephaly?

Orthotists have treated children with positional plagiocephaly since the 1970s, but have been casting and fitting helmets for much longer. The first article on the use of cranial orthosis to treat positional plagiocephaly was written by Drs. Clarren, Smith, and Hanson in 1979 in a study done at the University of Washington. Two orthotists there, Alan Dralle and David Noss, designed and fabricated the helmets used for the study. Today there are several remolding helmet designs on the market and several specific protocols for treatment.  more