Hip dysplasia was recently observed in association with Charcot-Marie-
Tooth disease (CMT). We retrospectively reviewed available radiographs
of 74 of 100 children with clinically and electrodiagnostically prove
n CMT and noted six cases of hip dysplasia. Minor hip abnormalities, m
ost commonly increased neck shaft angles, were noted in 21 other patie
nts. Type I usually causes more weakness and had more hip dysplasia th
an type II. A female predominance was noted but may have resulted from
sampling of more immature radiographs in males. Most dysplasia was as
ymptomatic and was detected only on screening radiographs.