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Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes?

OBJECTIVE: The purpose of this study was to determine whether the status of the hinge gutter affected clinical and radiographic outcomes of cervical open door laminoplasty. METHODS: We retrospectively analyzed 43 patients who had undergone cervical open door laminoplasty. 23 CT scans were performed...

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Autores principales: Cho, Sung Hoon, Lee, Jung Hwan, Chough, Chung Kee, Joo, Won Il, Park, Hae Kwan, Lee, Kyung Jin, Rha, Hyoung Kyun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Spinal Neurosurgery Society 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4124930/
https://www.ncbi.nlm.nih.gov/pubmed/25110482
http://dx.doi.org/10.14245/kjs.2014.11.2.45
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author Cho, Sung Hoon
Lee, Jung Hwan
Chough, Chung Kee
Joo, Won Il
Park, Hae Kwan
Lee, Kyung Jin
Rha, Hyoung Kyun
author_facet Cho, Sung Hoon
Lee, Jung Hwan
Chough, Chung Kee
Joo, Won Il
Park, Hae Kwan
Lee, Kyung Jin
Rha, Hyoung Kyun
author_sort Cho, Sung Hoon
collection PubMed
description OBJECTIVE: The purpose of this study was to determine whether the status of the hinge gutter affected clinical and radiographic outcomes of cervical open door laminoplasty. METHODS: We retrospectively analyzed 43 patients who had undergone cervical open door laminoplasty. 23 CT scans were performed at 2 days post-operation. The number of CT scans at 3, 6, 12 and 24 months were 16, 12, 21 and 11, respectively. We collected perioperative and follow-up data, including clinical and radiographic results. RESULTS: There were 7 patients without a hinge fracture and 16 patients with one or more hinge fractures at 2 days postoperation. There were 90 hinges, and the rate of ideal greenstick deformation of the hinge was 63% on 2-day-postoperative CT scans. Postoperative VAS scores of neck pain (p=0.012) in patients without a hinge fracture were higher than in patients with hinge fractures. The hinge healing rates were 37% at 3 months, 57.4% at 6 months, 86.4% at 12 months, and 85.4% at 24 months. Among the patients, 14 patients had healed hinges, and 7 patients had one or more hinge(s) that was/were not healed at 12 months post-operation. However, in clinical and radiographic outcomes, there was no difference between these patients. CONCLUSION: Cervical open door laminoplasty was safe and provided stable reconstruction of laminar expansion. In radiographs, the difference between hinges that had healed and hinges that had not healed was statistically negligible. Hinge fractures might not influence the clinical and radiographic outcomes of cervical open door laminoplasty.
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spelling pubmed-41249302014-08-10 Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes? Cho, Sung Hoon Lee, Jung Hwan Chough, Chung Kee Joo, Won Il Park, Hae Kwan Lee, Kyung Jin Rha, Hyoung Kyun Korean J Spine Clinical Article OBJECTIVE: The purpose of this study was to determine whether the status of the hinge gutter affected clinical and radiographic outcomes of cervical open door laminoplasty. METHODS: We retrospectively analyzed 43 patients who had undergone cervical open door laminoplasty. 23 CT scans were performed at 2 days post-operation. The number of CT scans at 3, 6, 12 and 24 months were 16, 12, 21 and 11, respectively. We collected perioperative and follow-up data, including clinical and radiographic results. RESULTS: There were 7 patients without a hinge fracture and 16 patients with one or more hinge fractures at 2 days postoperation. There were 90 hinges, and the rate of ideal greenstick deformation of the hinge was 63% on 2-day-postoperative CT scans. Postoperative VAS scores of neck pain (p=0.012) in patients without a hinge fracture were higher than in patients with hinge fractures. The hinge healing rates were 37% at 3 months, 57.4% at 6 months, 86.4% at 12 months, and 85.4% at 24 months. Among the patients, 14 patients had healed hinges, and 7 patients had one or more hinge(s) that was/were not healed at 12 months post-operation. However, in clinical and radiographic outcomes, there was no difference between these patients. CONCLUSION: Cervical open door laminoplasty was safe and provided stable reconstruction of laminar expansion. In radiographs, the difference between hinges that had healed and hinges that had not healed was statistically negligible. Hinge fractures might not influence the clinical and radiographic outcomes of cervical open door laminoplasty. The Korean Spinal Neurosurgery Society 2014-06 2014-06-30 /pmc/articles/PMC4124930/ /pubmed/25110482 http://dx.doi.org/10.14245/kjs.2014.11.2.45 Text en Copyright © 2014 The Korean Spinal Neurosurgery Society http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Clinical Article
Cho, Sung Hoon
Lee, Jung Hwan
Chough, Chung Kee
Joo, Won Il
Park, Hae Kwan
Lee, Kyung Jin
Rha, Hyoung Kyun
Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes?
title Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes?
title_full Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes?
title_fullStr Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes?
title_full_unstemmed Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes?
title_short Hinge Fracture during Cervical Open-door Laminoplasty: Does it Affect Clinical and Radiographic Outcomes?
title_sort hinge fracture during cervical open-door laminoplasty: does it affect clinical and radiographic outcomes?
topic Clinical Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4124930/
https://www.ncbi.nlm.nih.gov/pubmed/25110482
http://dx.doi.org/10.14245/kjs.2014.11.2.45
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