title: [Technical problems raised by renal puncture in the percutaneous extraction of coralliform calculi].
abstract: Initial puncture and dilation of nephrostomy track(s) remain difficult procedures in percutaneous extraction of staghorn calculi. Technical s adjuvants are necessary and are exposed in detail. The choice of the needle, of the wires and of the catheters for initial puncture and ureteral catheterization is explained. Techniques of "Y" tract and double puncture are exposed. Severe complications (3 cases) are reported. Extraction of up to 90% of the stone can be expected if these technical adjuvants are optimally used.
authors.affiliation: Service de Radiologie, Centre Médico-chirurgical de l'Alma, Paris.
authors.forename: F
authors.initials: F
authors.lastname: Cornud
authors.forename: N
authors.initials: N
authors.lastname: Meuriot
authors.forename: T
authors.initials: T
authors.lastname: Billebaud
authors.forename: L
authors.initials: L
authors.lastname: Boisrond
authors.forename: V
authors.initials: V
authors.lastname: Delmas
authors.forename: A
authors.initials: A
authors.lastname: Moulonguet
mesh_terms: D006801:Humans; D007669:Kidney Calculi / Q000601:surgery*; D009403:Nephrostomy, Percutaneous; D014546:Urinary Catheterization
vernacular_title: Problèmes techniques posés par la ponction du rein dans l'extraction percutanée des calculs coralliformes.