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Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study

STUDY DESIGN: Retrospective cohort study. OBJECTIVE: The purpose of this study is to compare the radiographic and clinical outcomes of expandable interbody spacers to static interbody spacers. METHODS: This is a retrospective, institutional review board–exempt chart review of 62 consecutive patients...

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Autores principales: Li, Yan Michael, Frisch, Richard F., Huang, Zheng, Towner, James, Li, Yan Icy, Greeley, Samantha L., Ledonio, Charles
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7645091/
https://www.ncbi.nlm.nih.gov/pubmed/32875829
http://dx.doi.org/10.1177/2192568219886278
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author Li, Yan Michael
Frisch, Richard F.
Huang, Zheng
Towner, James
Li, Yan Icy
Greeley, Samantha L.
Ledonio, Charles
author_facet Li, Yan Michael
Frisch, Richard F.
Huang, Zheng
Towner, James
Li, Yan Icy
Greeley, Samantha L.
Ledonio, Charles
author_sort Li, Yan Michael
collection PubMed
description STUDY DESIGN: Retrospective cohort study. OBJECTIVE: The purpose of this study is to compare the radiographic and clinical outcomes of expandable interbody spacers to static interbody spacers. METHODS: This is a retrospective, institutional review board–exempt chart review of 62 consecutive patients diagnosed with degenerative disc disease who underwent minimally invasive spine surgery lateral lumbar interbody fusion (MIS LLIF) using static or expandable spacers. There were 27 patients treated with static spacers, and 35 with expandable spacers. Radiographic and clinical functional outcomes were collected. Statistical results were significant if P < .05. RESULTS: Mean improvement in visual analogue scale back and leg pain scores was significantly greater in the expandable group compared to the static group at 6 and 24 months by 42.3% and 63.8%, respectively (P < .05). Average improvement in Oswestry Disability Index scores was significantly greater in the expandable group than the static group at 3, 6, 12, and 24 months by 28%, 44%, 59%, 53%, and 89%, respectively (P < .05). For disc height, the mean improvement from baseline to 24 months was greater in the static group compared to the expandable group (P < .05). Implant subsidence was significantly greater in the static group (16.1%, 5/31 levels) compared with the expandable group (6.7%, 3/45 levels; P < .05). CONCLUSIONS: This study showed positive clinical and radiographic outcomes for patients who underwent MIS LLIF with expandable spacers compared to those with static spacers. Sagittal correction and pain relief was achieved and maintained through 24-month follow-up. The expandable group had a lower subsidence rate than the static group.
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spelling pubmed-76450912020-11-17 Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study Li, Yan Michael Frisch, Richard F. Huang, Zheng Towner, James Li, Yan Icy Greeley, Samantha L. Ledonio, Charles Global Spine J Original Articles STUDY DESIGN: Retrospective cohort study. OBJECTIVE: The purpose of this study is to compare the radiographic and clinical outcomes of expandable interbody spacers to static interbody spacers. METHODS: This is a retrospective, institutional review board–exempt chart review of 62 consecutive patients diagnosed with degenerative disc disease who underwent minimally invasive spine surgery lateral lumbar interbody fusion (MIS LLIF) using static or expandable spacers. There were 27 patients treated with static spacers, and 35 with expandable spacers. Radiographic and clinical functional outcomes were collected. Statistical results were significant if P < .05. RESULTS: Mean improvement in visual analogue scale back and leg pain scores was significantly greater in the expandable group compared to the static group at 6 and 24 months by 42.3% and 63.8%, respectively (P < .05). Average improvement in Oswestry Disability Index scores was significantly greater in the expandable group than the static group at 3, 6, 12, and 24 months by 28%, 44%, 59%, 53%, and 89%, respectively (P < .05). For disc height, the mean improvement from baseline to 24 months was greater in the static group compared to the expandable group (P < .05). Implant subsidence was significantly greater in the static group (16.1%, 5/31 levels) compared with the expandable group (6.7%, 3/45 levels; P < .05). CONCLUSIONS: This study showed positive clinical and radiographic outcomes for patients who underwent MIS LLIF with expandable spacers compared to those with static spacers. Sagittal correction and pain relief was achieved and maintained through 24-month follow-up. The expandable group had a lower subsidence rate than the static group. SAGE Publications 2019-10-29 2020-12 /pmc/articles/PMC7645091/ /pubmed/32875829 http://dx.doi.org/10.1177/2192568219886278 Text en © The Author(s) 2019 https://creativecommons.org/licenses/by-nc-nd/4.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 License (https://creativecommons.org/licenses/by-nc-nd/4.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).
spellingShingle Original Articles
Li, Yan Michael
Frisch, Richard F.
Huang, Zheng
Towner, James
Li, Yan Icy
Greeley, Samantha L.
Ledonio, Charles
Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study
title Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study
title_full Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study
title_fullStr Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study
title_full_unstemmed Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study
title_short Comparative Effectiveness of Expandable Versus Static Interbody Spacers via MIS LLIF: A 2-Year Radiographic and Clinical Outcomes Study
title_sort comparative effectiveness of expandable versus static interbody spacers via mis llif: a 2-year radiographic and clinical outcomes study
topic Original Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7645091/
https://www.ncbi.nlm.nih.gov/pubmed/32875829
http://dx.doi.org/10.1177/2192568219886278
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