Minimally invasive, extracavitary approach for thoracic disc herniation: technical report and preliminary results

The Spine Journal : Official Journal of the North American Spine Society
Zvi LidarD J Maiman

Abstract

Traditional approaches to thoracic disc herniation are technically demanding and, if incorporating thoracotomy, can be associated with significant morbidity. New procedures have allowed discectomy with less pain and morbidity. To assess the feasibility, safety, and early outcome of a minimally invasive extracavitary approach (MI-ECA) for thoracic disc disease. Cadaver sessions and a short-term human study were performed on four cadavers and 10 patients, respectively. Operative results and complications were studied, and early outcome was assessed using a Visual Pain Analog Scale, neurological status, and American Spinal Injury Association (ASIA) classification. Four fresh cadaver sessions, attempting all thoracic levels, were completed to determine the feasibility of the technique. Ten patients with thoracic myelopathy caused by herniated disc were treated using the minimally invasive extracavitary approach. Intervertebral discs were successfully removed from all four cadavers using this procedure. No operative complications in the human series were documented. The mean operative time was 171 minutes (150-220), mean estimated blood loss was 215 cc (60-350), and hospital stay for all patients was one night. No operative or posto...Continue Reading

Citations

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