Identical Type I Congenital Kyphosis in Male Twins: A Brief Report

There is limited evidence of familial transmission of congenital spinal deformities. The clinical and
surgical histories of two twin male patients with essentially identical congenital kyphotic deformities are
reviewed. Each underwent posterior instrumented fusion, and each has maintained position over 2 years
since surgical intervention. Identical type I congenital kyphosis in twins is unreported in the literature.
Further evaluation of possible genetic factors in the etiology of such deformities is necessary. (Journal
of Surgical Orthopaedic Advances 14(2):99–101, 2005)
Key words: congenital kyphosis, twins