[Prognostic factors in the treatment of the intradural extramedullary XXXX : a study of 44 cases].

@entity1 @entity808 @entity5 @entity3292 @entity1653 @entity601 @entity3 @entity1823
Between 1993 and 1999, 44 @entity1 submitted to resection of an expansible intradural extramedullary lesion who filled protocol requirements of appropriate follow up were studied. @entity1 were constituted by 43.2% female and 56.8% male. The mean age was 32.9 years old. Lesion most common location was at the thoracic spine, with 45.5% of the cases, followed by the lumbar level with 18.2%. @entity5 extension varied from 1 to 7 vertebral segments, with an average of 2.5 levels. @entity808 , with 65,9% of the cases, was the most frequent lesion, followed by @entity1653 with 20.5%. There were 2 cases of @entity3292 and 1 case of @entity1823 , @entity601 , @entity3 and @entity5 . The evolution was of improvement in 56.8%, stability in 31.8% and of worsening in 11.4%. There was no mortality related to the surgical procedure. All cases of worsening had total resection and they had lesions located in the thoracic segment. Total resection is the ideal modality of surgical treatment. However, at the thoracic level, where the peculiarities of spine irrigation prevail, surgical morbidade may be higher (p=0.014).
