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[The complications of lumbotomies].

After having described the surgical anatomy of the lumbar region, with particular regard to the relationships with pleura and peritoneum, as well as to the course of the nervous structures of the region (12th intercostal, ileohypogastric and ileoinguinal), the authors describe the possible complications related with the surgical approaches to the lumbar region. Pathogenesis of post-operatory pains and parietal hypotonies is especially evaluated; these complications may be caused by section, ligature or compression of one or more nervous trunks. The authors conclude that the respect of the anatomic structures located in the lumbar region represents the best way in order to prevent most complications related to lumbotomies.