Abstract
Objective To report the key points and clinical outcomes of posterior bilateral transpedicular approach circumspinal decompression for thoracic ossification of the posterior longitudinal ligament.Methods The author retrospectively reviewed the cases of 7 consecutive patients presenting with OPLL in whom surgery was performed via a transpedicular approach from Mar.2006 to Dec. 2009. We evaluated the spinal function and surgical outcome during the follow up,and investigated the safety and effectiveness of this procedure.Results Mean follow up period was 13.7 months.Of those with weakness of lower extremities,5 of 6 regained muscle strength.One presented temporary muscle strength worse and recovered after rehabilitation training.One presented the paralysis of left lower extremity.5 patients relieved from the back pain.3 patients presenting dysfunction of urinary and fecal improved. No patient suffered postoperative spinal instability-related pain or delayed kyphosis.Conclusion Posterior bilateral transpedicular approach for circumspinal decompression is a safe and effective way to treat thoracic ossification of the posterior longitudinal ligament. Key words: Thoracic ossification of the posterior longitudinal ligament; Transpedicular approach; Spinal canal stenosis
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