Christoph Hohenberger1, Christine Gugg2, Nils Ole Schmidt2, Florian Zeman3, Karl-Michael Schebesch2. 1. Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany. Electronic address: christoph.hohenberger@ukr.de. 2. Department of Neurosurgery, University Medical Center Regensburg, Regensburg, Germany. 3. Center for Clinical Studies, University Medical Center Regensburg, Regensburg, Germany.
Abstract
OBJECTIVE: Space-occupying spinal meningiomas (SM), commonly diagnosed due to gradual neurological deterioration, are treated surgically by decompression and tumor resection. In this series of patients with surgically treated SM, we determined individual predictors of functional outcome in the context of intraoperative neuromonitoring (IOM). METHODS: This retrospective study included 45 patients (39 women, 6 men; mean age 63 years). We reviewed pre- and postoperative charts, surgical reports, radiographic data for demographics, use of IOM, duration of symptoms, histopathology, co-morbidities, radiographic extension, surgical strategy, neurological performance (Japanese Orthopedic Association Score [JOA score]. Median follow-up was 34 months (12-190 months). RESULTS: Most frequent surgical approaches were laminectomy (71.1%, n = 32) and hemi-laminectomy (28.9%, n = 13). Predominant SM site was the thoracic spine (55.6%, n = 25). Most common symptoms were sensory deficits (77.8%, n = 35), gait disorders (55.6%, n = 25), motor deficits (42.2%, n = 19), and radiating pain (37.8%, n = 17). Simpson grade 1 resection was achieved in 6 patients, most common type of resection was Simpson grade 2 in 36 patients. During follow-up, 80.0% of patients had fully recovered sensory deficits (p < 0.001), 76.0% of patients with preoperative gait disorders had been asymptomatic (p < 0.001), and motor deficits in 12/19 (63.1%). Pain had decreased significantly from admission to follow-up (p = 0.001). IOM was used in 20 (44.4%) patients. Postoperatively, 6(13.3%) patients had developed a new neurological deficit, 4 of them operated without IOM. CONCLUSION: Resection of SM with IOM showed good recovery, excellent functional results with low surgical morbidity.
OBJECTIVE: Space-occupying spinal meningiomas (SM), commonly diagnosed due to gradual neurological deterioration, are treated surgically by decompression and tumor resection. In this series of patients with surgically treated SM, we determined individual predictors of functional outcome in the context of intraoperative neuromonitoring (IOM). METHODS: This retrospective study included 45 patients (39 women, 6 men; mean age 63 years). We reviewed pre- and postoperative charts, surgical reports, radiographic data for demographics, use of IOM, duration of symptoms, histopathology, co-morbidities, radiographic extension, surgical strategy, neurological performance (Japanese Orthopedic Association Score [JOA score]. Median follow-up was 34 months (12-190 months). RESULTS: Most frequent surgical approaches were laminectomy (71.1%, n = 32) and hemi-laminectomy (28.9%, n = 13). Predominant SM site was the thoracic spine (55.6%, n = 25). Most common symptoms were sensory deficits (77.8%, n = 35), gait disorders (55.6%, n = 25), motor deficits (42.2%, n = 19), and radiating pain (37.8%, n = 17). Simpson grade 1 resection was achieved in 6 patients, most common type of resection was Simpson grade 2 in 36 patients. During follow-up, 80.0% of patients had fully recovered sensory deficits (p < 0.001), 76.0% of patients with preoperative gait disorders had been asymptomatic (p < 0.001), and motor deficits in 12/19 (63.1%). Pain had decreased significantly from admission to follow-up (p = 0.001). IOM was used in 20 (44.4%) patients. Postoperatively, 6(13.3%) patients had developed a new neurological deficit, 4 of them operated without IOM. CONCLUSION: Resection of SM with IOM showed good recovery, excellent functional results with low surgical morbidity.
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