Klippel-Feil syndrome is known as mostly a cervical spine congenital malformation with many different accompanying malformations (see the cervical spine case). One of the difficult accompanying malformations is located at the lumbosacral spine with transition anomalies, lack of segmentation, spina bifida, etc. Here we demonstrate a case of lumbosacral deformity which needed surgery due to progressive clinical problems, while leaving aside the severe cervical malformations.
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