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Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae

INTRODUCTION: Laminoplasty is a method used in spinal intradural tumor surgery to reduce the possibility of iatrogenic deformity. In classic laminoplasty, the interspinous, supraspinous, and ligamentum flavum integrity may be impaired, thereby creating a risk of deformity despite the laminoplasty. T...

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Autores principales: Önen, Mehmet Reşid, Naderi, Sait
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Wolters Kluwer - Medknow 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8035577/
https://www.ncbi.nlm.nih.gov/pubmed/33850383
http://dx.doi.org/10.4103/jcvjs.JCVJS_215_20
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author Önen, Mehmet Reşid
Naderi, Sait
author_facet Önen, Mehmet Reşid
Naderi, Sait
author_sort Önen, Mehmet Reşid
collection PubMed
description INTRODUCTION: Laminoplasty is a method used in spinal intradural tumor surgery to reduce the possibility of iatrogenic deformity. In classic laminoplasty, the interspinous, supraspinous, and ligamentum flavum integrity may be impaired, thereby creating a risk of deformity despite the laminoplasty. The aim of this study was to review the outcomes of bone-to-bone ligament preserving laminoplasty (BLP laminoplasty) technique. MATERIALS AND METHODS: The data of 14 cases who underwent BLP laminoplasty for intradural spinal tumor between 2017 and 2019 were reviewed. Through examination of preoperative and postoperative computed tomography images and flexion-extension lateral X-rays, the fusion and kyphotic changes were evaluated in the laminas. An axial Visual Analog Scale (VAS) was used to evaluate clinical satisfaction. RESULTS: The cases comprised 10 females and 4 males, with a mean age of 39.2 years (range, 16–52 years). The masses were intramedullary in six cases and extramedullary in eight. Lumbar region localization was most frequent. Ependymoma was determined in 8 cases, schwannoma in 4, and meningioma in 2. Laminoplasty was applied at 43 levels (10 thoracic and 33 lumbar). No complications were observed, and fusion was obtained in all the cases at the end of 1 year. No segmental kyphotic changes were determined. In the clinical evaluation, the VAS scores improved from 3.4 ± 2.0 preoperatively to 1.8 ± 2.1 postoperatively. CONCLUSION: BLP laminoplasty is a safe technique which preserves posterior ligamentous integrity. Furthermore, the use of ultrasonic bone scalpel provides a narrower gap between laminae and other bones, preventing dislocation, and allowing for more fusion, and consequently preventing kyphosis.
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spelling pubmed-80355772021-04-12 Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae Önen, Mehmet Reşid Naderi, Sait J Craniovertebr Junction Spine Original Article INTRODUCTION: Laminoplasty is a method used in spinal intradural tumor surgery to reduce the possibility of iatrogenic deformity. In classic laminoplasty, the interspinous, supraspinous, and ligamentum flavum integrity may be impaired, thereby creating a risk of deformity despite the laminoplasty. The aim of this study was to review the outcomes of bone-to-bone ligament preserving laminoplasty (BLP laminoplasty) technique. MATERIALS AND METHODS: The data of 14 cases who underwent BLP laminoplasty for intradural spinal tumor between 2017 and 2019 were reviewed. Through examination of preoperative and postoperative computed tomography images and flexion-extension lateral X-rays, the fusion and kyphotic changes were evaluated in the laminas. An axial Visual Analog Scale (VAS) was used to evaluate clinical satisfaction. RESULTS: The cases comprised 10 females and 4 males, with a mean age of 39.2 years (range, 16–52 years). The masses were intramedullary in six cases and extramedullary in eight. Lumbar region localization was most frequent. Ependymoma was determined in 8 cases, schwannoma in 4, and meningioma in 2. Laminoplasty was applied at 43 levels (10 thoracic and 33 lumbar). No complications were observed, and fusion was obtained in all the cases at the end of 1 year. No segmental kyphotic changes were determined. In the clinical evaluation, the VAS scores improved from 3.4 ± 2.0 preoperatively to 1.8 ± 2.1 postoperatively. CONCLUSION: BLP laminoplasty is a safe technique which preserves posterior ligamentous integrity. Furthermore, the use of ultrasonic bone scalpel provides a narrower gap between laminae and other bones, preventing dislocation, and allowing for more fusion, and consequently preventing kyphosis. Wolters Kluwer - Medknow 2021 2021-03-04 /pmc/articles/PMC8035577/ /pubmed/33850383 http://dx.doi.org/10.4103/jcvjs.JCVJS_215_20 Text en Copyright: © 2021 Journal of Craniovertebral Junction and Spine https://creativecommons.org/licenses/by-nc-sa/4.0/This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.
spellingShingle Original Article
Önen, Mehmet Reşid
Naderi, Sait
Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae
title Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae
title_full Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae
title_fullStr Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae
title_full_unstemmed Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae
title_short Bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae
title_sort bone-to-bone ligament preserving laminoplasty technique for reconstruction of laminae
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8035577/
https://www.ncbi.nlm.nih.gov/pubmed/33850383
http://dx.doi.org/10.4103/jcvjs.JCVJS_215_20
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