HEREDITARY CONGENITAL POSTERIOR DISLOCATION OF RADIAL HEADS

We report on 4 patients with congenital posterior dislocation of radia l heads in 3 generations of a family, Radiographs of the elbow joints of 3 individuals are presented. All affected subjects have mild limita tion of extension and a strong restriction of rotation in the elbows, Comparison with previously described patients shows similarities in th e X-ray findings, Congenital posterior dislocation of the radial head can be unilateral or bilateral, This malformation is also found in pat ients with antecubital pterygium or nail-patella syndrome, This family confirms the autosomal dominant inheritance of congenital posterior d islocation of radial heads. (C) 1995 Wiley Liss, Inc.