| Summary: | Background:
To report the surgical outcome of intradural extramedullary (IDEM) tumors in 52 patients. Clinical effect was evaluated based on Frankel grade.
Purpose:
The results of a single neurosurgery institution are reported to highlight the peculiarities and pitfalls of the management of this disease. Tumors are analyzed from the point of view of their localization, histology, surgical technique and outcome was evaluated in term of Frankle classification.
Methods:
Fifty-two cases of histopathologically confirmed IDEM were treated laminectomy with complete resection of tumors between January 2011 and February 2014. There were 34 males and 18 females with an average age of 41.53 years. The mean postoperative follow-up period was 22.44 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 was evaluated according to the Frankel grading.
Results:
The histopathological results are as follows: 14 cases of a meningioma, 30 cases of nerve sheath tumors (28 cases schwannoma and 2 cases neurofibroma), 4 cases of an arachnoid cyst, 3 cases of tarlov cyst, and one case of benign cystic teratoma. The locations of the tumors were as follows: 40 cases in the thoracic region, eight cases in the cervical region, and two cases in the lumbar and two cases of sacral region. The most common diagnosis was nerve sheath tumors (57.69%), followed by meningioma (26.92%). At the final follow-up, a 3-grade, 2-grade and 1-grade improvement was observed in 6, 22 and 24 cases, respectively. There were changes in the Frankel grade in every case. The preoperative neurological deficit improved within 6 postoperative weeks in most cases. Postoperatively, there were one case of cerebrospinal fluid leakage.
Conclusion:
intradural extramedullary tumors detected by magnetic resonance imaging (MRI) are mostly benign and good clinical results can be obtained when treated surgically. Therefore, more dynamic surgical approaches by neurosurgeons are suggested to decline morbidity.
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