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Surgical treatment of primary spinal tumors in the conus medullaris

 In-Ho Han  ;  Sung-Uk Kuh  ;  Dong-Kyu Chin  ;  Keun-Su Kim  ;  Byung-Ho Jin  ;  Yong-Eun Cho 
 Journal of Korean Neurosurgical Society (대한신경외과학회지), Vol.44(2) : 72-77, 2008 
Journal Title
Journal of Korean Neurosurgical Society(대한신경외과학회지)
Issue Date
Conus medullaris ; Primary tumor
Objective: The objective of this study was to evaluate the characteristics and surgical outcome of the conus medullaris tumors. Methods: We retrospectively reviewed 26 patients who underwent surgery for conus medullaris tumor from August 1986 to July 2007. We analyzed clinical manifestation, preoperative MRI findings, extent of surgical resection, histopathologic type, adjuvant therapy, and outcomes. Results: There were ependymoma (13), hemangioblastoma (3), lipoma (3), astrocytoma (3), primitive neuroectodermal tumor (PNET) (2), mature teratoma (1), and capillary hemangioma (1) on histopathologic type. Leg pain was the most common symptom and was seen in 80.8% of patients. Pain or sensory change in the saddle area was seen in 50% of patients and 2 patients had severe pain in the perineum and genitalia. Gross total or complete tumor resection was obtained in 80.8% of patients. On surgical outcome, modified JOA score worsened in 26.9% of patients, improved in 34.6%, and remained stable in 38.5%. The mean VAS score was improved from 5.4 to 1.8 among 21 patients who had lower back pain and leg pain. Conclusion: The surgical outcome of conus medullaris tumor mainly depends on preoperative neurological condition and pathological type. The surgical treatment of conus medullaris tumor needs understanding the anatomical and functional characteristics of conus meudllaris tumor for better outcome.
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1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Kuh, Sung Uk(구성욱) ORCID logo https://orcid.org/0000-0003-2566-3209
Kim, Keun Su(김근수) ORCID logo https://orcid.org/0000-0002-3384-5638
Cho, Yong Eun(조용은) ORCID logo https://orcid.org/0000-0001-9815-2720
Chin, Dong Kyu(진동규) ORCID logo https://orcid.org/0000-0002-9835-9294
Jin, Byung Ho(진병호)
Han, In Ho(한인호)
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