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Journal of Korean Neurosurgical Society 1988;17(3): 545-550. |
The Technique of Enlargement of Cervical Canal in Treatment of Cervical OPLL. |
S H Kwon, H K Rha, G S Lee, M S Ahn, C R Choi, J U Song |
Department of Neurosurgery, St, Paul's Hospital Catholic Medical College, Seoul, Korea. |
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ABSTRACT |
We have performed a new technique of laminoplasty which have been used to enlarge the spinal canal on 6 patients with OPLL(olssification of posteriorlongitudial ligament) combined with spinal canal stenosis during the past 2 years.
On clinical symptoms and signs, two cases have only radiculopathy, one has only myelopathy, and three have myelopathy and radiculopathy. The extent of OPLL was 2 levels in one case, 3 levels in 3 cases and 4 levels in two cases. The sagittal diameter of the spinal canal at the lesion site was less than 12mm in all patients. Plain X-ray, tomogram, Erb's point SEP, EMG, C-myelogram, and spinal CT were used for the diagnostic method in these 6 patients.
Operative result was good in 5 cases except for one having long preoperative history of severe symptoms.
Post-operatively, no complications were noted in all cases.
Therefore we suggest that the technique of the laminoplasty would be better than multiple level laminectomy in patients with cervical stenosis more than 3 levels of involvement. |
Key Words:
OPLL; Myelopathy and radiculopathy; Canal stenosis; Laminoplasty |
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