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- Justin S Smith, Kurt M Eichholz, Stephen Shafizadeh, Alfred T Ogden, John E O'Toole, and Richard G Fessler.
- Department of Neurological Surgery, University of Virginia, Charlottesville, Virginia. Electronic address: jss7f@virginia.edu.
- World Neurosurg. 2013 Sep 1;80(3-4):421-7.
ObjectiveTo present operative details and clinical follow-up of a series of patients with thoracic disk herniation treated with the minimally invasive technique of thoracic microendoscopic diskectomy (TMED).MethodsTMED was performed in 16 consecutive patients (age range, 18-79 years old) with 18 thoracic disk herniations. One patient with a calcified herniation in a direct ventral location was not included in this series. Patients were positioned prone, and a tubular retractor system was placed through a muscle dilating approach. The procedure was performed with endoscopic visualization. Outcomes were assessed using modified McNab criteria.ResultsThere were no complications, and no case required conversion to an open procedure. The mean operative time was 153 minutes per level, and mean blood loss was 69 mL per level. Mean hospital stay was 21 hours. At a mean follow-up of 24 months (median, 22 months), 13 patients (81%) had excellent or good outcomes, 1 patient (6%) had a fair outcome, and 2 patients (13%) had poor outcomes. The two patients with poor outcomes had neurologic diagnoses (multiple sclerosis and multiple systems atrophy) that were ultimately found to be responsible for their symptoms and deficits.ConclusionsTMED is a safe and effective minimally invasive posterolateral approach for the treatment of thoracic disk herniations that lacks the morbidity associated with traditional approaches.Copyright © 2013 Elsevier Inc. All rights reserved.
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