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      Reparación de la duramadre con poliesteruretano Translated title: Repair of dura mater with polyesterurethane

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      , , ,
      Revista Cubana de Cirugía
      Editorial Ciencias Médicas
      Duraplastia, sustituto dural, poliesteruretano

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          Abstract

          Objetivo: El propósito de este estudio fue comprobar el uso del poliesteruretano como material de injerto dural e informar los resultados posoperatorios. Métodos: Se realizó una duraplastia con poliesteruretano como material de injerto a 30 pacientes que precisaban de implantes durales. El poliesteuretano empleado se extrajo de la poliespuma protectora de las cajas de medicamentos. Excluimos a los pacientes con signos de infección en el sitio donde se aplicó el procedimiento neuroquirúrgico. Se hicieron las observaciones clínicas un día después de la operación, a los 15 y a los 90 días posteriores, para buscar indicios de filtración de líquido cefalorraquídeo, infección de la herida y meningitis. Resultados: No se encontró filtración de líquido cefaloraquídeo ni infección en ninguno de los 30 pacientes (craneotomía - 53,3 %; cranectomía - 3,3 %; reparación de fracturas deprimidas del cráneo - 20 %; reparación de mielomeningocele lumbar - 6,7 %; instrumentación y fusión de la espina toracolumbar - 3,3 %; laminectomía torácica - 3,3 %; laminectomías lumbares - 6,7 % y discectomía lumbar - 3,3 %). En un paciente reintervenido quirúrgicamente (recaída por metástasis cerebral), no se observaron adherencias del injerto a la superficie cortical. Conclusiones: Al parecer el poliesteruretano es un sustituto dural apropiado, de fácil manipulación (y en este caso, sin costo alguno), que produce un cierre hermético de la duramadre, sin complicaciones o adherencias a la superficie cortical

          Translated abstract

          The purpose of this study was to prove the use of polyesterurethane as a dural graft material and to inform the postoperative results. Methods: A duraplasty with polyesterurethane as a graft material was performed in 30 patients that required dural implants. The polyesterurethane used was extracted from the protective polyfoam of the drug boxes. Patients with signs of infection in the site where the neurosurgical procedure was carried out were excluded. The clinical observations were made a day after surgery, at 15 and 90 days later to find signs of filtration of cerebrospinal fluid, wound infection and meningitis. Results: Neither filtration of the cerebrospinal fluid nor infection was found in any of the 30 patients (craniotomy 53.3 %, craniectomy 3.3 %, repair of depressed fractures of the cranium 20 %, repair of lumbar myelomeningocele 6.7 %, instrumentation and fusion of thoracolumbar spine 3.3 %, thoracic laminectomy 3.3 %, lumbar laminectomies 6.7 %, and lumbar discectomy 3.3 %). In a patient that was reoperated on (relapse due to cerebral metastasis), there were not observed adherences of the graft to the cortical surface. Conclusions: It seems that polyesterutherane is an appropriate dural substitute that can be easily manipulated (and in this case with no cost) and that produces a hermetic closure of the dura mater without complications or adherences to the cortical surface. Key words: Duroplasty, dural substitute, polyesterurethane

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          Most cited references25

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          Incidental durotomy in spine surgery.

          Retrospective review of a large series of patients who underwent spinal surgery at a single institution during a 10-year period. To further clarify the frequency of incidental durotomy during spine surgery, its treatment, associated complications, and results of long-term clinical follow-up. Incidental durotomy is a relatively common occurrence during spinal surgery. There remains significant concern about it despite reports of good associated clinical outcomes. There have been few large clinical series on the subject. A retrospective review was conducted of clinical and surgical records and radiographic data for consecutive patients who underwent spinal surgery performed by the two senior surgeons from January 1989 through December 1998. A total of 2144 patients were reviewed, and 74 were found to have dural tears occurring during or before surgery. Incidental durotomy occurred at the time of surgery in 66 patients (3.1% overall incidence). Incidence varied according to the specific procedure performed but was highest in the group that underwent revision surgery. The incidence of clinically significant durotomies occurring during surgery but not identified at the time was 0.28%. All dural tears that occurred during surgery and were recognized (60 of 66) were repaired primarily. Pseudomeningoceles developed in five of the remaining six patients. All six patients had subsequent surgical repair of dural defects because of failure of conservative therapy. A mean follow-up of 22.4 months was available and showed good long-term clinical results for all patients. Incidental durotomy, if recognized and treated appropriately, does not lead to long-term sequelae.
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            A clinicopathological study of collagen sponge as a dural graft in neurosurgery.

            There is frequently a need for dural grafts to cover defects resulting from retraction, shrinkage, or excision following neurosurgical procedures. Several materials have been evaluated both experimentally and clinically, and then discarded. Collagen, in its various forms, continues to be an area of intense interest. In this study the authors examined the suitability of collagen sponge to effect dural repair. In a 5-year clinical study 102 collagen sponge implants were examined macroscopically and histologically. Graft encapsulation, neomembrane formation, delayed hemorrhage, and foreign body reactions were not found. The porous nature of the collagen sponge encouraged fibroblastic ingrowth and dural repair. Meningocerebral adhesions were present in 11 patients, all of whom had required significant cortical resection or had pia-arachnoid disruption during the initial surgery. Inflammatory cells were seen only in response to infection. Postoperative cerebrospinal fluid leaks developed in only three of 67 patients who underwent an intradural posterior fossa procedure. In a prospective arm of the study involving 459 patients, the wound infection rate using collagen sponge was 6.1%, which compared favorably (p = 0.67) with the 5.7% rate in a similar group of 637 patients in whom collagen sponge had not been used.
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              Dural Tears Secondary to Operations on the Lumbar Spine. Management and Results After a Two-Year-Minimum Follow-up of Eighty-eight Patients*

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                Author and article information

                Journal
                cir
                Revista Cubana de Cirugía
                Rev Cubana Cir
                Editorial Ciencias Médicas (Ciudad de la Habana, , Cuba )
                0034-7493
                1561-2945
                March 2005
                : 44
                : 1
                Affiliations
                [01] orgnameHospital del Estado de Acre orgdiv1Departamento de Neurocirugía Brasil
                [02] orgnameUniversidad Federal de Bahía Brasil
                Article
                S0034-74932005000100002 S0034-7493(05)04400102
                fa003007-5a1c-4bb5-a68a-6110bca45bce

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 20 April 2004
                : 15 January 2005
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 18, Pages: 0
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                SciELO Cuba

                Categories
                ARTICULO ORIGINALES

                Duraplastia,poliesteruretano,sustituto dural
                Duraplastia, poliesteruretano, sustituto dural

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