A New Classification for Pathologies of Spinal Meninges-Part 2: Primary and Secondary Intradural Arachnoid Cysts.

摘要: BACKGROUND Spinal intradural arachnoid cysts are rare causes of radiculopathy or myelopathy. Treatment options include resection, fenestration, cyst drainage. OBJECTIVE To classify spinal and present results their treatment. METHODS Among 1519 patients with space occupying lesions, 130 demonstrated cysts. Neuroradiological surgical features were reviewed clinical data analyzed. RESULTS Twenty-one presented as a result an inflammatory leptomeningeal reaction related to meningitis, subarachnoid hemorrhage, intrathecal injections, surgery, trauma, ie, secondary For the remaining 109 patients, no such history could be elucidated, primary Forty-six percent 86% associated syringomyelia. Patients after average 53 ± 88 months. There 122 thoracic 7 lumbar plus 1 cervical cyst. Fifty-nine 15 underwent laminotomies complete partial resection duraplasty. Mean follow-up was 57 52 In first postoperative year, profound improvements for noted, in contrast marginal changes Progression-free survival 10 years following surgery determined 83% compared 15% Despite differences presentation, progression-free almost identical without CONCLUSIONS Complete leads favorable short- long-term cysts, can only provide stabilization limited time due often extensive arachnoiditis.