계명대학교 의학도서관 Repository

A Comparison of Implants Used in Double Door Laminoplasty : Allogeneic Bone Spacer versus Hydroxyapatite Spacer

Metadata Downloads
Author(s)
Dong Yoon LeeChang Kyu LeeIn-Soo Kim
Keimyung Author(s)
Kim, In SooLee, Chang Kyu
Department
Dept. of Neurosurgery (신경외과학)
Journal Title
Journal of Korean Neurosurgical Society
Issued Date
2016
Volume
59
Issue
6
Keyword
AllograftHydroxyapatitesCervical myelopathyOssification of posterior longitudinal ligamentSpinal fusion
Abstract
Objective : The aim of this study was to compare the clinical and radiological outcomes associated with the use of hydroxyapatite (HA) spacer and allogeneic bone (AB) spacer in laminoplasty.
Methods : From January 2006 to July 2014, 79 patients with cervical spondylotic myelopathy or ossification of the posterior longitudinal ligament underwent cervical laminoplasty. The radiologic parameters were obtained from plain radiography and three-dimensional computed tomography. All images were taken before and after surgery. Cervical lordosis, spinal canal dimension, fusion between lamina and spacer, and resorption of spacer were checked. Clinical outcomes were assessed using visual analog scale and Japanese Orthopedic Association.
Results : Double-door laminoplasty was performed on 280 levels : 182 in the HA group and 98 in the AB group. The mean follow-up was 23.1 months (range : 4–69 months). Similar fusion rates were found in these groups (p=0.3). The resorption rate between lamina and spacer was lower in the HA group (p<0.001). During the immediate postoperative period, the canal dimension of both groups increased compared with the results in the preoperative period. However, the canal dimension of the AB group decreased over time compared with that of the HA group (p<0.001).
Conclusion : Double-door laminoplasty improved the clinical outcomes of both groups. However, the spinal canal dimension in the AB group showed a greater degree of reduction than in the HA group at the final postoperative follow-up. Therefore, we suggest that surgeons consider the use of larger-sized AB spacers in double-door laminoplasties.
Keimyung Author(s)(Kor)
김인수
이창규
Publisher
School of Medicine
Citation
Dong Yoon Lee et al. (2016). A Comparison of Implants Used in Double Door Laminoplasty : Allogeneic Bone Spacer versus Hydroxyapatite Spacer. Journal of Korean Neurosurgical Society, 59(6), 604–609. doi: 10.3340/jkns.2016.59.6.604
Type
Article
ISSN
2005-3711
DOI
10.3340/jkns.2016.59.6.604
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/32464
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학)
공개 및 라이선스
  • 공개 구분공개
파일 목록

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.