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Spinal intradural extramedullary tumors. Personal experience
1Department of Neurosciences, Section of Neurosurgery, University of Catania, Catania, Italy.
Journal of Neurosurgical Sciences
|July 16, 2002
Summary
Radical surgery offers the best long-term outcomes for spinal intradural extramedullary tumors like meningiomas and schwannomas. Early identification of critical arteries during surgery is vital to prevent neurological deficits.
Area of Science:
- Neurosurgery
- Oncology
- Spinal Surgery
Background:
- Spinal intradural extramedullary tumors, primarily meningiomas and schwannomas, constitute two-thirds of intraspinal neoplasms.
- Advances in imaging and surgical techniques have improved outcomes, yet some patients experience poor results due to prolonged symptoms or severe preoperative deficits.
Purpose of the Study:
- To investigate the impact of clinical history duration, preoperative neurological status, and surgical factors on patient outcomes after surgery for spinal intradural extramedullary tumors.
Main Methods:
- Analysis of clinical, surgical, and prognostic data from 41 patients with intradural extramedullary spinal tumors treated between 1990 and 1999.
- Follow-up ranged from 1 to 9 years, with clinical history varying from 3-48 months for meningiomas and 1-72 months for schwannomas.
Main Results:
- Morbidity rates were 5% for meningiomas and 0% for schwannomas; mortality rates were 0% and 6%, respectively.
- Significant neurological improvement was observed in most patients, with 68% of meningioma and 66% of schwannoma patients achieving Nurick's grade 1 or 2.
- Complete tumor removal was achieved in 90% of meningiomas and 94% of schwannomas.
Conclusions:
- Radical surgical resection is the optimal approach for achieving the best long-term results in patients with these spinal tumors.
- Systematic identification of radiculomedullary arteries during tumor debulking and dissection is crucial to mitigate the risk of severe postoperative neurological worsening.