The VariLift® Interbody Fusion System: expandable, standalone interbody fusion

The VariLift® Interbody Fusion System: expandable, standalone interbody fusion

Erik Emstad,1 Diana Cardenas del Monaco,1 Louis C Fielding,2 Jon E Block2 1Wenzel Spine, Inc., Austin, TX, 2The Jon Block Group, San Francisco, CA, USA Abstract: Intervertebral fusion cages have been in clinical use since the 1990s. Cages offer the benefits of bone graft containment, restored inter...

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Autores principales: Emstad E, Cardenas del Monaco D, Fielding LC, Block JE
Formato: article
Lenguaje:EN
Publicado: Dove Medical Press 2015
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Medical technology
R855-855.5
Acceso en línea:https://doaj.org/article/a66632d17fc94a1b9abdd3d15b55a59b
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spelling oai:doaj.org-article:a66632d17fc94a1b9abdd3d15b55a59b2021-12-02T03:32:58ZThe VariLift® Interbody Fusion System: expandable, standalone interbody fusion1179-1470https://doaj.org/article/a66632d17fc94a1b9abdd3d15b55a59b2015-05-01T00:00:00Zhttp://www.dovepress.com/the-variliftreg-interbody-fusion-system-expandable-standalone-interbod-peer-reviewed-article-MDERhttps://doaj.org/toc/1179-1470Erik Emstad,1 Diana Cardenas del Monaco,1 Louis C Fielding,2 Jon E Block2 1Wenzel Spine, Inc., Austin, TX, 2The Jon Block Group, San Francisco, CA, USA Abstract: Intervertebral fusion cages have been in clinical use since the 1990s. Cages offer the benefits of bone graft containment, restored intervertebral and foraminal height, and a more repeatable, stable procedure compared to interbody fusion with graft material alone. Due to concerns regarding postoperative stability, loss of lordosis, and subsidence or migration of the implant, interbody cages are commonly used with supplemental fixation such as pedicle screw systems or anterior plates. While providing additional stability, supplemental fixation techniques increase operative time, exposure, cost, and morbidity. The VariLift® Interbody Fusion System (VariLift® system) has been developed as a standalone solution to provide the benefits of intervertebral fusion cages without the requirement of supplemental fixation. The VariLift® system, FDA-cleared for standalone use in both the cervical and lumbar spine, is implanted in a minimal profile and then expanded in situ to provide segmental stability, restored lordosis, and a large graft chamber. Preclinical testing and analyses have found that the VariLift® System is durable, and reduces stresses that may contribute to subsidence and migration of other standalone interbody cages. Fifteen years of clinical development with the VariLift® system have demonstrated positive clinical outcomes, continued patient maintenance of segmental stability and lordosis, and no evidence of implant migration. The purpose of this report is to describe the VariLift® system, including implant characteristics, principles of operation, indications for use, patient selection criteria, surgical technique, postoperative care, preclinical testing, and clinical experience. The VariLift® System represents an improved surgical option for a stable interbody fusion without requiring supplemental fixation. Keywords: TLIF, PLIF, ACDF, standalone cageEmstad ECardenas del Monaco DFielding LCBlock JEDove Medical PressarticleMedical technologyR855-855.5ENMedical Devices: Evidence and Research, Vol 2015, Iss default, Pp 219-230 (2015)
institution DOAJ
collection DOAJ
language EN
topic Medical technology
R855-855.5
spellingShingle Medical technology
R855-855.5
Emstad E
Cardenas del Monaco D
Fielding LC
Block JE
The VariLift® Interbody Fusion System: expandable, standalone interbody fusion
description Erik Emstad,1 Diana Cardenas del Monaco,1 Louis C Fielding,2 Jon E Block2 1Wenzel Spine, Inc., Austin, TX, 2The Jon Block Group, San Francisco, CA, USA Abstract: Intervertebral fusion cages have been in clinical use since the 1990s. Cages offer the benefits of bone graft containment, restored intervertebral and foraminal height, and a more repeatable, stable procedure compared to interbody fusion with graft material alone. Due to concerns regarding postoperative stability, loss of lordosis, and subsidence or migration of the implant, interbody cages are commonly used with supplemental fixation such as pedicle screw systems or anterior plates. While providing additional stability, supplemental fixation techniques increase operative time, exposure, cost, and morbidity. The VariLift® Interbody Fusion System (VariLift® system) has been developed as a standalone solution to provide the benefits of intervertebral fusion cages without the requirement of supplemental fixation. The VariLift® system, FDA-cleared for standalone use in both the cervical and lumbar spine, is implanted in a minimal profile and then expanded in situ to provide segmental stability, restored lordosis, and a large graft chamber. Preclinical testing and analyses have found that the VariLift® System is durable, and reduces stresses that may contribute to subsidence and migration of other standalone interbody cages. Fifteen years of clinical development with the VariLift® system have demonstrated positive clinical outcomes, continued patient maintenance of segmental stability and lordosis, and no evidence of implant migration. The purpose of this report is to describe the VariLift® system, including implant characteristics, principles of operation, indications for use, patient selection criteria, surgical technique, postoperative care, preclinical testing, and clinical experience. The VariLift® System represents an improved surgical option for a stable interbody fusion without requiring supplemental fixation. Keywords: TLIF, PLIF, ACDF, standalone cage
format article
author Emstad E
Cardenas del Monaco D
Fielding LC
Block JE
author_facet Emstad E
Cardenas del Monaco D
Fielding LC
Block JE
author_sort Emstad E
title The VariLift® Interbody Fusion System: expandable, standalone interbody fusion
title_short The VariLift® Interbody Fusion System: expandable, standalone interbody fusion
title_full The VariLift® Interbody Fusion System: expandable, standalone interbody fusion
title_fullStr The VariLift® Interbody Fusion System: expandable, standalone interbody fusion
title_full_unstemmed The VariLift® Interbody Fusion System: expandable, standalone interbody fusion
title_sort varilift® interbody fusion system: expandable, standalone interbody fusion
publisher Dove Medical Press
publishDate 2015
url https://doaj.org/article/a66632d17fc94a1b9abdd3d15b55a59b
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