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Hemivertebra in monozygotic twins
P F Sturm1, R Chung, S R Bomze
1Pediatric Orthopaedic and Scolioisis Associates, Annandale, Virginia, USA. pfsturm@ped-ortho.com
Study Design:
A case report.
Objectives:
To report and discuss a case of thoracic hemivertebra in monozygotic twins.
Summary Of Background Data:
The etiology of congenital scoliosis remains unclear. Both a genetic basis and environmental influences have been postulated. A few isolated reports of discordant spinal anomalies in twins exist.
Methods:
Clinical examination and plain radiograph evaluation were performed on female monozygotic twins with congenital scoliosis secondary to thoracic hemivertebra.
Results:
Congenital thoracic scoliosis was documented in both of a set of monozygotic twins.
Conclusions:
To the authors' knowledge, this is the first report of similar congenital vertebral abnormalities in identical twins in the English literature.

