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Cervical Expansive Laminoplasty with 90° Box-Shape Double Door Method

Authors
 Jung Hoon Kim  ;  Ho Yeol Zhang  ;  Young Mok Park 
Citation
 Korean Journal of Spine (대한척추신경외과학회지), Vol.9(3) : 193-196, 2012 
Journal Title
 Korean Journal of Spine (대한척추신경외과학회지) 
ISSN
 1738-2262 
Issue Date
2012
Keywords
Open-door laminoplasty ; Double-door laminoplasty ; Spinal canal area
Abstract
Objective : The aim of this study is to introduce the surgical method with miniplate and compared the expansion rate of the spinal canal area with other kinds of lamina spacers. Methods : Between June. 2008 and May 2011, we performed expansive cervical laminoplasty on 61 patients. We analyzed the results of these operations, examining type of lamina spacer used, spinal canal areas between pre- and postoperative CT scans, and operative methods. Results : 39 patients were analyzed retrospectively. Miniplates were used in 21 patients with 103 levels. Hydroxyapatite (HA) was used in 6 patients with 29 levels, and Centerpiece® was used in 12 patients with 54 levels. The expansion area was calculated using Photoshop CS3®. The expansion rate of the miniplates was 76.5%, that of HA was 49.8%, and that obtained with Centerpiece was 50.6%. The excellent 90° box-shaped widening of the laminae achieved through the surgery can be checked easily by AP X-ray. All miniplates are positioned horizontally and parallel, and the lamina is seen as a pedicle of thoracic or lumbar spine due to its 90° erect position. Neurologic improvement and clinical outcomes will be discussed. No complications were reported with miniplates. Conclusion : Box-shaped laminoplasty with miniplates is the widest spinal canal expansion method among the three types of implants examined.
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T201203666.pdf Download
DOI
10.14245/kjs.2012.9.3.193
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Jeong Hun(김정훈)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/158245
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