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A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy

BACKGROUND: This was a prospective randomized cohort study aiming at examining the safety and efficacy of artificial vertebral body (AVB) fabricated by electron beam melting (EBM) in comparison to conventional titanium mesh cage (TMC) used in single-level anterior cervical corpectomy and fusion (SL-...

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Autores principales: Wei, Feng, Xu, Nanfang, Li, Zihe, Cai, Hong, Zhou, Feifei, Yang, Jun, Yu, Miao, Liu, Xiaoguang, Sun, Yu, Zhang, Ke, Pan, Shengfa, Wu, Fengliang, Liu, Zhongjun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: AME Publishing Company 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7575998/
https://www.ncbi.nlm.nih.gov/pubmed/33145289
http://dx.doi.org/10.21037/atm-19-4719
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author Wei, Feng
Xu, Nanfang
Li, Zihe
Cai, Hong
Zhou, Feifei
Yang, Jun
Yu, Miao
Liu, Xiaoguang
Sun, Yu
Zhang, Ke
Pan, Shengfa
Wu, Fengliang
Liu, Zhongjun
author_facet Wei, Feng
Xu, Nanfang
Li, Zihe
Cai, Hong
Zhou, Feifei
Yang, Jun
Yu, Miao
Liu, Xiaoguang
Sun, Yu
Zhang, Ke
Pan, Shengfa
Wu, Fengliang
Liu, Zhongjun
author_sort Wei, Feng
collection PubMed
description BACKGROUND: This was a prospective randomized cohort study aiming at examining the safety and efficacy of artificial vertebral body (AVB) fabricated by electron beam melting (EBM) in comparison to conventional titanium mesh cage (TMC) used in single-level anterior cervical corpectomy and fusion (SL-ACCF). METHODS: Forty patients with cervical spondylotic myelopathy (CSM) underwent SL-ACCF using either the EBM-AVB or the TMC. Patients were evaluated for their demographics, radiological characteristics, neurologic function [using the Japanese Orthopaedic Association (JOA) scale], and health-related quality-of-life (HRQoL) aspects [using the Short Form 36 (SF-36)] before and after the surgery and comparison was made between the two groups both at baseline and the last follow-up. The Student t-text, paired-sample t-text, and Fisher’s exact test were used when appropriate to detect any statistical significance at the level of α=0.05. RESULTS: Post-operative recovery was uneventful for all patients and no revision surgery was required. There were no significant differences between the EBM-AVB group and the TMC group at baseline. Patients in both groups demonstrated significant improvement in cervical alignment, JOA score, and SF-36 score after the surgery. Six months post-operatively, patients in the EBM-AVB group were found to have significantly less loss of fusion height and lower incidence for severe implant subsidence compared with the TMC group. Patients in the two groups were comparable at the last follow-up regarding their rate of fusion, cervical alignment, JOA recovery rate, SF-36 score, and by Odom’s criteria. CONCLUSIONS: For CSM patients undergoing SL-ACCF, the EBM-AVB group demonstrated comparable outcomes regarding patient cervical alignment, neurologic function, and HRQoL in comparison with the TMC group. Furthermore, the use of EBM-AVB was associated with decreased loss of the height of the fusion mass and a lower rate for severe implant subsidence.
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spelling pubmed-75759982020-11-02 A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy Wei, Feng Xu, Nanfang Li, Zihe Cai, Hong Zhou, Feifei Yang, Jun Yu, Miao Liu, Xiaoguang Sun, Yu Zhang, Ke Pan, Shengfa Wu, Fengliang Liu, Zhongjun Ann Transl Med Original Article BACKGROUND: This was a prospective randomized cohort study aiming at examining the safety and efficacy of artificial vertebral body (AVB) fabricated by electron beam melting (EBM) in comparison to conventional titanium mesh cage (TMC) used in single-level anterior cervical corpectomy and fusion (SL-ACCF). METHODS: Forty patients with cervical spondylotic myelopathy (CSM) underwent SL-ACCF using either the EBM-AVB or the TMC. Patients were evaluated for their demographics, radiological characteristics, neurologic function [using the Japanese Orthopaedic Association (JOA) scale], and health-related quality-of-life (HRQoL) aspects [using the Short Form 36 (SF-36)] before and after the surgery and comparison was made between the two groups both at baseline and the last follow-up. The Student t-text, paired-sample t-text, and Fisher’s exact test were used when appropriate to detect any statistical significance at the level of α=0.05. RESULTS: Post-operative recovery was uneventful for all patients and no revision surgery was required. There were no significant differences between the EBM-AVB group and the TMC group at baseline. Patients in both groups demonstrated significant improvement in cervical alignment, JOA score, and SF-36 score after the surgery. Six months post-operatively, patients in the EBM-AVB group were found to have significantly less loss of fusion height and lower incidence for severe implant subsidence compared with the TMC group. Patients in the two groups were comparable at the last follow-up regarding their rate of fusion, cervical alignment, JOA recovery rate, SF-36 score, and by Odom’s criteria. CONCLUSIONS: For CSM patients undergoing SL-ACCF, the EBM-AVB group demonstrated comparable outcomes regarding patient cervical alignment, neurologic function, and HRQoL in comparison with the TMC group. Furthermore, the use of EBM-AVB was associated with decreased loss of the height of the fusion mass and a lower rate for severe implant subsidence. AME Publishing Company 2020-09 /pmc/articles/PMC7575998/ /pubmed/33145289 http://dx.doi.org/10.21037/atm-19-4719 Text en 2020 Annals of Translational Medicine. All rights reserved. https://creativecommons.org/licenses/by-nc-nd/4.0/Open Access Statement: This is an Open Access article distributed in accordance with the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License (CC BY-NC-ND 4.0), which permits the non-commercial replication and distribution of the article with the strict proviso that no changes or edits are made and the original work is properly cited (including links to both the formal publication through the relevant DOI and the license). See: https://creativecommons.org/licenses/by-nc-nd/4.0 (https://creativecommons.org/licenses/by-nc-nd/4.0/) .
spellingShingle Original Article
Wei, Feng
Xu, Nanfang
Li, Zihe
Cai, Hong
Zhou, Feifei
Yang, Jun
Yu, Miao
Liu, Xiaoguang
Sun, Yu
Zhang, Ke
Pan, Shengfa
Wu, Fengliang
Liu, Zhongjun
A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy
title A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy
title_full A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy
title_fullStr A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy
title_full_unstemmed A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy
title_short A prospective randomized cohort study on 3D-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy
title_sort prospective randomized cohort study on 3d-printed artificial vertebral body in single-level anterior cervical corpectomy for cervical spondylotic myelopathy
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7575998/
https://www.ncbi.nlm.nih.gov/pubmed/33145289
http://dx.doi.org/10.21037/atm-19-4719
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