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Patient awoke with new leg pain following lumbar fusion surgery.A follow-up ct identified bone graft in the central canal at l3-l4.A second surgery was performed two days later.A laminectomy was performed at l2-l3 and bone graft was removed from the canal at l2-l3 and at l3-l4, and intraoperative neuromonitoring showed immediate improvement.The implant and a large piece of disc material were both removed from the l3-l4 disc space and replaced with an expandable fusion cage and allograft.The symptoms are reported to be resolved.
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