Early occurrence of lumbar sequestrated nucleus pulposus after spinal fusion for lumbar degenerative spondylolisthesis: a case report spinal fusion for lumbar degenerative spondylolisthesis: a case report

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We report a rare case of L4 spinal nerve root compression by a sequestrated nucleus pulposus from the L3/4 intervertebral disc 4 months after surgery to effect posterior lateral fusion between L4 and L5 in a 72-year-old man. A search of the English-language medical literature revealed no previous similar reports.Posterior decompression and posterior lateral fusion with pedicle screws was performed at the L4/5 level. However, 4 months later, sequestrated nucleus pulposus occurred after low back strain. The herniated nucleus pulposus from the L3/4 intervertebral disc was revealed by myelography and discography. Conservative treatment for 3 months was not effective, so surgical treatment was performed. The symptoms originating from the right L4 spinal nerve roots disappeared immediately after surgical removal of the disc herniation. A failure of absorption of the disc herniation was due to reduced vascularization caused by adhesion of the dura mater after the initial surgery.
千葉医学会の論文
2006-12-01