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Canal-expansive laminoplasty in 83 patients with cervical myelopathy

A comparative study of three different procedures

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Summary

We have reviewed 83 patients who had undergone canal-expansive laminoplasty for the treatment of cervical myelopathy between 1982 and 1991. The procedures used for laminoplasty were a Z-plasty in 35 patients, unilateral laminoplasty in 19, and sagittal splitting of the spinous processes in 29. At an average follow-up of more than two years and five months, there were no significant differences in clinical results among the three operations, and excellent or good results were obtained in more than 70% of the patients. However, Z-plasty was the least preferable because this procedure had the longest operating time and the greatest intraoperative blood loss. The sagittal splitting procedure is recommended in routine laminoplasty in order to avoid complications at the site of osteotomy, and to allow simultaneous posterior fusion to be easily performed.

Résumé

Nous avons suivi 83 patients traités par laminoplastie pour myélopathie cervicale entre 1982 et 1991. La technique opératoire utilisée a été la plastie en Z pour 35 de ces patients, l'ouverture unilatérale pour 19 et la section sagittale de l'apophyse épineuse pour les 29 autres. Avec un recul moyen supérieur à 2 ans 5 mois, nous n'avons pas observé de différences significatives entre ces trois méthodes quant aux résultats cliniques, qui sont excellents ou bons dans 70% des cas. La plastie en Z s'avère la technique la moins recommandable en raison d'une durée opératoire plus longue et d'une perte sanguine plus importante au cours de l'opération. La section sagittale spinale est conseillée comme intervention de routine du fait de sa sécurité et de la possibilité de réaliser simultanément une arthrodèse postérieure.

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Naito, M., Ogata, K., Kurose, S. et al. Canal-expansive laminoplasty in 83 patients with cervical myelopathy. International Orthopaedics 18, 347–351 (1994). https://doi.org/10.1007/BF00187078

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