In vitro evaluation of a lateral expandable cage and its comparison with a static device for lumbar interbody fusion: a biomechanical investigation.
Identifieur interne : 002C79 ( Ncbi/Merge ); précédent : 002C78; suivant : 002C80In vitro evaluation of a lateral expandable cage and its comparison with a static device for lumbar interbody fusion: a biomechanical investigation.
Auteurs : Sabrina A. Gonzalez-Blohm ; James J. Doulgeris ; Kamran Aghayev ; William E. Lee ; Jake Laun ; Frank D. VrionisSource :
- Journal of neurosurgery. Spine [ 1547-5646 ] ; 2014.
English descriptors
- KwdEn :
- MESH :
- instrumentation : Spinal Fusion.
- methods : Spinal Fusion.
- physiology : Biomechanical Phenomena, Lumbar Vertebrae, Range of Motion, Articular.
- surgery : Lumbar Vertebrae.
- Aged, Bone Screws, Female, Humans, Internal Fixators, Male, Middle Aged, Rotation.
Abstract
Through in vitro biomechanical testing, the authors compared the performance of a vertically expandable lateral lumbar interbody cage (EC) under two different torque-controlled expansions (1.5 and 3.0 Nm) and with respect to an equivalent lateral lumbar static cage (SC) with and without pedicle screw fixation.
DOI: 10.3171/2013.12.SPINE13798
PubMed: 24484306
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">In vitro evaluation of a lateral expandable cage and its comparison with a static device for lumbar interbody fusion: a biomechanical investigation.</title><author><name sortKey="Gonzalez Blohm, Sabrina A" sort="Gonzalez Blohm, Sabrina A" uniqKey="Gonzalez Blohm S" first="Sabrina A" last="Gonzalez-Blohm">Sabrina A. Gonzalez-Blohm</name><affiliation><nlm:affiliation>Neuro-Oncology Department, H. Lee Moffitt Cancer Center & Research Institute;</nlm:affiliation><wicri:noCountry code="subField">H</wicri:noCountry></affiliation></author><author><name sortKey="Doulgeris, James J" sort="Doulgeris, James J" uniqKey="Doulgeris J" first="James J" last="Doulgeris">James J. Doulgeris</name></author><author><name sortKey="Aghayev, Kamran" sort="Aghayev, Kamran" uniqKey="Aghayev K" first="Kamran" last="Aghayev">Kamran Aghayev</name></author><author><name sortKey="Lee, William E" sort="Lee, William E" uniqKey="Lee W" first="William E" last="Lee">William E. Lee</name></author><author><name sortKey="Laun, Jake" sort="Laun, Jake" uniqKey="Laun J" first="Jake" last="Laun">Jake Laun</name></author><author><name sortKey="Vrionis, Frank D" sort="Vrionis, Frank D" uniqKey="Vrionis F" first="Frank D" last="Vrionis">Frank D. Vrionis</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2014">2014</date><idno type="doi">10.3171/2013.12.SPINE13798</idno><idno type="RBID">pubmed:24484306</idno><idno type="pmid">24484306</idno><idno type="wicri:Area/PubMed/Corpus">000759</idno><idno type="wicri:Area/PubMed/Curation">000759</idno><idno type="wicri:Area/PubMed/Checkpoint">000609</idno><idno type="wicri:Area/Ncbi/Merge">002C79</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">In vitro evaluation of a lateral expandable cage and its comparison with a static device for lumbar interbody fusion: a biomechanical investigation.</title><author><name sortKey="Gonzalez Blohm, Sabrina A" sort="Gonzalez Blohm, Sabrina A" uniqKey="Gonzalez Blohm S" first="Sabrina A" last="Gonzalez-Blohm">Sabrina A. Gonzalez-Blohm</name><affiliation><nlm:affiliation>Neuro-Oncology Department, H. Lee Moffitt Cancer Center & Research Institute;</nlm:affiliation><wicri:noCountry code="subField">H</wicri:noCountry></affiliation></author><author><name sortKey="Doulgeris, James J" sort="Doulgeris, James J" uniqKey="Doulgeris J" first="James J" last="Doulgeris">James J. Doulgeris</name></author><author><name sortKey="Aghayev, Kamran" sort="Aghayev, Kamran" uniqKey="Aghayev K" first="Kamran" last="Aghayev">Kamran Aghayev</name></author><author><name sortKey="Lee, William E" sort="Lee, William E" uniqKey="Lee W" first="William E" last="Lee">William E. Lee</name></author><author><name sortKey="Laun, Jake" sort="Laun, Jake" uniqKey="Laun J" first="Jake" last="Laun">Jake Laun</name></author><author><name sortKey="Vrionis, Frank D" sort="Vrionis, Frank D" uniqKey="Vrionis F" first="Frank D" last="Vrionis">Frank D. Vrionis</name></author></analytic><series><title level="j">Journal of neurosurgery. Spine</title><idno type="eISSN">1547-5646</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aged</term><term>Biomechanical Phenomena (physiology)</term><term>Bone Screws</term><term>Female</term><term>Humans</term><term>Internal Fixators</term><term>Lumbar Vertebrae (physiology)</term><term>Lumbar Vertebrae (surgery)</term><term>Male</term><term>Middle Aged</term><term>Range of Motion, Articular (physiology)</term><term>Rotation</term><term>Spinal Fusion (instrumentation)</term><term>Spinal Fusion (methods)</term></keywords><keywords scheme="MESH" qualifier="instrumentation" xml:lang="en"><term>Spinal Fusion</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Spinal Fusion</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Biomechanical Phenomena</term><term>Lumbar Vertebrae</term><term>Range of Motion, Articular</term></keywords><keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Lumbar Vertebrae</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Bone Screws</term><term>Female</term><term>Humans</term><term>Internal Fixators</term><term>Male</term><term>Middle Aged</term><term>Rotation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Through in vitro biomechanical testing, the authors compared the performance of a vertically expandable lateral lumbar interbody cage (EC) under two different torque-controlled expansions (1.5 and 3.0 Nm) and with respect to an equivalent lateral lumbar static cage (SC) with and without pedicle screw fixation.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">24484306</PMID><DateCreated><Year>2014</Year><Month>04</Month><Day>01</Day></DateCreated><DateCompleted><Year>2014</Year><Month>06</Month><Day>09</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1547-5646</ISSN><JournalIssue CitedMedium="Internet"><Volume>20</Volume><Issue>4</Issue><PubDate><Year>2014</Year><Month>Apr</Month></PubDate></JournalIssue><Title>Journal of neurosurgery. Spine</Title><ISOAbbreviation>J Neurosurg Spine</ISOAbbreviation></Journal><ArticleTitle>In vitro evaluation of a lateral expandable cage and its comparison with a static device for lumbar interbody fusion: a biomechanical investigation.</ArticleTitle><Pagination><MedlinePgn>387-95</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.3171/2013.12.SPINE13798</ELocationID><Abstract><AbstractText Label="OBJECT" NlmCategory="OBJECTIVE">Through in vitro biomechanical testing, the authors compared the performance of a vertically expandable lateral lumbar interbody cage (EC) under two different torque-controlled expansions (1.5 and 3.0 Nm) and with respect to an equivalent lateral lumbar static cage (SC) with and without pedicle screw fixation.</AbstractText><AbstractText Label="METHODS" NlmCategory="METHODS">Eleven cadaveric human L2-3 segments were evaluated under the following conditions: 1) intact; 2) discectomy; 3) EC under 1.50 Nm of torque expansion (EC-1.5Nm); 4) EC under 3.00 Nm of torque expansion (EC-3.0Nm); 5) SC; and 6) SC with a bilateral pedicle screw system (SC+BPSS). Load-displacement behavior was evaluated for each condition using a combination of 100 N of axial preload and 7.5 Nm of torque in flexion and extension (FE), lateral bending (LB), and axial rotation (AR). Range of motion (ROM), neutral zone stiffness (NZS), and elastic zone stiffness (EZS) were statistically compared among conditions using post hoc Wilcoxon signed-rank comparisons after Friedman tests, with a significance level of 0.05. Additionally, any cage height difference between interbody devices was evaluated. When radiographic subsidence was observed, the specimen's data were not considered for the analysis.</AbstractText><AbstractText Label="RESULTS" NlmCategory="RESULTS">The final cage height in the EC-1.5Nm condition (12.1 ± 0.9 mm) was smaller (p < 0.001) than that in the EC-3.0Nm (13.9 ± 1.1 mm) and SC (13.4 ± 0.8 mm) conditions. All instrumentation reduced (p < 0.01) ROM with respect to the injury and increased (p ≤ 0.01) NZS in flexion, extension, and LB as well as EZS in flexion, LB, and AR. When comparing the torque expansions, the EC-3.0Nm condition had smaller (p < 0.01) FE and AR ROM and greater (p ≤ 0.04) flexion NZS, extension EZS, and AR EZS. The SC condition performed equivalently (p ≥ 0.10) to both EC conditions in terms of ROM, NZS, and EZS, except for EZS in AR, in which a marginal (p = 0.05) difference was observed with respect to the EC-3.0Nm condition. The SC+BPSS was the most rigid construct in terms of ROM and stiffness, except for 1) LB ROM, in which it was comparable (p = 0.08) with that of the EC-1.5Nm condition; 2) AR NZS, in which it was comparable (p > 0.66, Friedman test) with that of all other constructs; and 3) AR EZS, in which it was comparable with that of the EC-1.5Nm (p = 0.56) and SC (p = 0.08) conditions.</AbstractText><AbstractText Label="CONCLUSIONS" NlmCategory="CONCLUSIONS">A 3.0-Nm torque expansion of a lateral interbody cage provides greater immediate stability in FE and AR than a 1.5-Nm torque expansion. Moreover, the expandable device provides stability comparable with that of an equivalent (in size, shape, and bone-interface material) SC. Specifically, the SC+BPSS construct was the most stable in FE motion. Even though an EC may seem a better option given the minimal tissue disruption during its implantation, there may be a greater chance of endplate collapse by over-distracting the disc space because of the minimal haptic feedback from the expansion.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Gonzalez-Blohm</LastName><ForeName>Sabrina A</ForeName><Initials>SA</Initials><AffiliationInfo><Affiliation>Neuro-Oncology Department, H. Lee Moffitt Cancer Center & Research Institute;</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Doulgeris</LastName><ForeName>James J</ForeName><Initials>JJ</Initials></Author><Author ValidYN="Y"><LastName>Aghayev</LastName><ForeName>Kamran</ForeName><Initials>K</Initials></Author><Author ValidYN="Y"><LastName>Lee</LastName><ForeName>William E</ForeName><Initials>WE</Initials><Suffix>3rd</Suffix></Author><Author ValidYN="Y"><LastName>Laun</LastName><ForeName>Jake</ForeName><Initials>J</Initials></Author><Author ValidYN="Y"><LastName>Vrionis</LastName><ForeName>Frank D</ForeName><Initials>FD</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>01</Month><Day>31</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>J Neurosurg Spine</MedlineTA><NlmUniqueID>101223545</NlmUniqueID><ISSNLinking>1547-5646</ISSNLinking></MedlineJournalInfo><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName MajorTopicYN="N" UI="D000368">Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001696">Biomechanical Phenomena</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D001863">Bone Screws</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D005260">Female</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D006801">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="Y" UI="D016268">Internal Fixators</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008159">Lumbar Vertebrae</DescriptorName><QualifierName MajorTopicYN="N" UI="Q000502">physiology</QualifierName><QualifierName MajorTopicYN="Y" UI="Q000601">surgery</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008297">Male</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D008875">Middle Aged</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D016059">Range of Motion, Articular</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000502">physiology</QualifierName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D012399">Rotation</DescriptorName></MeshHeading><MeshHeading><DescriptorName MajorTopicYN="N" UI="D013123">Spinal Fusion</DescriptorName><QualifierName MajorTopicYN="Y" UI="Q000295">instrumentation</QualifierName><QualifierName MajorTopicYN="N" UI="Q000379">methods</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="aheadofprint"><Year>2014</Year><Month>1</Month><Day>31</Day></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2014</Year><Month>2</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2014</Year><Month>2</Month><Day>4</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2014</Year><Month>6</Month><Day>10</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="doi">10.3171/2013.12.SPINE13798</ArticleId><ArticleId IdType="pubmed">24484306</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list></list><tree><noCountry><name sortKey="Aghayev, Kamran" sort="Aghayev, Kamran" uniqKey="Aghayev K" first="Kamran" last="Aghayev">Kamran Aghayev</name><name sortKey="Doulgeris, James J" sort="Doulgeris, James J" uniqKey="Doulgeris J" first="James J" last="Doulgeris">James J. Doulgeris</name><name sortKey="Gonzalez Blohm, Sabrina A" sort="Gonzalez Blohm, Sabrina A" uniqKey="Gonzalez Blohm S" first="Sabrina A" last="Gonzalez-Blohm">Sabrina A. Gonzalez-Blohm</name><name sortKey="Laun, Jake" sort="Laun, Jake" uniqKey="Laun J" first="Jake" last="Laun">Jake Laun</name><name sortKey="Lee, William E" sort="Lee, William E" uniqKey="Lee W" first="William E" last="Lee">William E. Lee</name><name sortKey="Vrionis, Frank D" sort="Vrionis, Frank D" uniqKey="Vrionis F" first="Frank D" last="Vrionis">Frank D. Vrionis</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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