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JOURNAL OF NEUROSURGICAL SCIENCES
Rivista di Neurochirurgia
Indexed/Abstracted in: e-psyche, EMBASE, PubMed/MEDLINE, Neuroscience Citation Index, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,651
Journal of Neurosurgical Sciences 2002 March;46(1):18-24
Spinal intradural extramedullary tumors. Personal experience
Albanese V., Platania N.
Department of Neurosciences, Section of Neurosurgery, University of Catania, Catania
Background. Spinal intradural extramedullary tumors account for 2/3 of all intraspinal neoplasms and are mainly represented by meningiomas and schwannomas, with the former accounting for the 25-46% of all primary intraspinal tumors. Technical advances in imaging technique, magnetic resonance imaging (MRI) and surgical procedures have brought about significant better clinical results in the last 2 decades. Neverthless a small percentage of patients still present poor postoperative outcome mainly related to the duration of clinical history, the severity of preoperative neurological deficits and to some specific anatomo-surgical aspects.
Methods. In an effort to clarify the influence of these factors on patient’s outcome, the authors analyze the clinical, surgical and prognostic data of 41 patients with intradural extramedullary spinal tumor surgically treated between January 1990 and December 1999. The follow-up period ranged from 1 to 9 years. The clinical history until admission and treatment was 3-48 months for meningiomas and 1-72 months for schwannomas.
Results. Morbidity and mortality rate was 5 and 0% for meningiomas and 0 and 6% for schwannomas. Almost all the patients experienced a significant neurological improvement after surgery, with a percentage of Nurick’s grade 1 and 2 of 68% among patients with meningiomas and 66% among patients with schwannomas. Removal of the tumor was complete in 90% of meningiomas and 94% of schwannomas.
Conclusions. The authors address radical surgery as the ideal goal in these neoplasms, as it gives the patients the best long-terms results, pointing out the importance of systematic early identification of any main radiculomedullary artery during debulking and dissection of the tumor to avoid any risk of severe postoperative neurological worsening of the patients.