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KMID : 1207720090010020074
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Clinics in Orthopedic Surgery
2009 Volume.1 No. 2 p.74 ~ p.80
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Surgical Results of Intradural Extramedullary Tumors
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Song Kyung-Won
Shin Sung-Il
Lee Jin-Young
Kim Gab-Lae
Hyun Yun-Seok
Park Deok-Yong
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Abstract
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Background: To report the treatment results of 12 patients who underwent a total excision of intradural extramedullary tumors.
Methods: Twelve cases of histopathologically confirmed intradural extramedullary tumors were treated surgically between February 2002 and March 2005. There were 8 males and 4 females with an average age of 42.6 years. The mean postoperative follow-up period was 24.2 months. The histopathological findings, locations of the tumors, and clinical results were analyzed. The neurological findings obtained during the preoperative stage and the postoperative follow-up were evaluated according to the Frankel classification.
Results: The histopathological results are as follows: 4 cases of a meningioma, 4 cases of a schwannoma, 2 cases of an epidermoid cyst, 1 case of an arachnoid cyst, and 1 case of an ependymoma. The locations of the tumors were as follows: 7 cases in the thoracic region, 4 cases in the lumbar region, and 1 case in the cervical region. At the final follow-up, a 2-grade and 1-grade improvement was observed in 1 and 7 cases, respectively. There were no changes in the Frankel grade in 4 cases. The preoperative neurological deficit improved within 8 postoperative weeks in most cases and within 1 postoperative year in all cases. Postoperatively, there were 2 cases of cerebrospinal fluid leakage and 2 cases of paresthesia.
Conclusions: Intradural extramedullary tumors detected by MRI are mostly benign and good clinical results can be obtained when treated surgically. Therefore, more active surgical approaches by orthopedic surgeons are recommended to decrease morbidity.
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KEYWORD
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Intradural, Extramedullary, Tumor
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