title: Retrorenal colon: implications for percutaneous diskectomy.
abstract: It has been recommended that computed tomography (CT) with the patient prone be performed in every patient undergoing percutaneous diskectomy; this would enable detection of a retrorenal location of the colon, which could interfere with the percutaneous procedure. In this evaluation of 346 prone CT studies, only one patient (0.29%) was found to have retrorenal or retropsoas bowel that would have been perforated at diskectomy. Because of this extremely low prevalence, the performance of prone CT in every patient undergoing percutaneous lumbar diskectomy is not believed to be necessary.
authors.affiliation: Department of Radiology, University of California San Francisco 94143.
authors.forename: C A
authors.initials: CA
authors.lastname: Helms
authors.forename: P L
authors.initials: PL
authors.lastname: Munk
authors.forename: W S
authors.initials: WS
authors.lastname: Witt
authors.forename: G W
authors.initials: GW
authors.lastname: Davis
authors.forename: J
authors.initials: J
authors.lastname: Morris
authors.forename: G
authors.initials: G
authors.lastname: Onik
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003106:Colon / Q000002:abnormalities* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D007405:Intervertebral Disc Displacement / Q000000981:diagnostic imaging / Q000601:surgery*; D008159:Lumbar Vertebrae; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013484:Supination; D014057:Tomography, X-Ray Computed