• Daniel Benzecry de Almeida, Tobias Alécio Mattei, Marília Grando Sória, Mirto Nelso Prandini, André Giacomelli Leal, Jerônimo Buzzeti Milano, and Ricardo Ramina.
• Department of Neurosurgery, Instituto de Neurologia de Curitiba, PR, Brazil.
• Arq Neuropsiquiatr. 2009 Jun 1;67(2A):268-72.

ObjectiveBertolotti's syndrome is a spine disorder characterized by the occurrence of a congenital lumbar transverse mega-apophysis in a transitional vertebral body that usually articulates with the sacrum or the iliac bone. It has been considered a possible cause of low back pain.MethodWe analyzed the cases of Bertolotti's syndrome that failed clinical treatment and reviewed the literature concerning this subject.ResultsFive patients in our series had severe low back pain due to the neo-articulation and two of them were successfully submitted to surgical resection of the transverse mega-apophysis. Taking into account the clinical and surgical experience acquired with these cases, we propose a diagnostic-therapeutic algorithm.ConclusionThere is still no consensus about the most appropriate therapy for Bertolotti's syndrome. In patients in whom the mega-apophysis itself may be the source of back pain, surgical resection may be a safe and effective procedure.

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