Revision of the failed pedicle screw in osteoporotic lumbar spine: Biomechanical comparison of kyphoplasty versus transpedicular polymethylmethacrylate augmentation

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dc.contributor.authorDerincek, Alihan
dc.contributor.authorTurker, Mehmet
dc.contributor.authorCinar, Murat
dc.contributor.authorCetik, Ozgur
dc.contributor.authorKalaycioglu, Baris
dc.date.accessioned2020-06-25T18:06:47Z
dc.date.available2020-06-25T18:06:47Z
dc.date.issued2012
dc.departmentKırıkkale Üniversitesi
dc.description.abstractObjectives: In this study, we aimed to compare of kyphoplasty versus transpedicular polymethylmethacrylate (PMMA) augmentation biomechanically in the revision of the failed pedicle screw in osteoporotic lumbar spine. Materials and methods: Bone mineral density (BMD) of, lumbar vertebrae collected from four bovines were measured., Each vertebra was decalcified with hydrochloric acid solution to obtain osteoporotic specimens. Primary polyaxial pedicle screws, were inserted into the pedicles and pulled out until they failed. The pullout strength results of all specimens were recorded. Revision pedicle screws were randomly inserted into the same pedicles by either pedicle hole PMMA augmented (group 1) or kyphoplasty (Xvoid (TM)) PMMA augmented pedicle screws (group 2). The pullout strength results of all specimens were re-recorded. Results: The mean BMD significantly decreased from 1.686 +/- 227.9 g/cm(2) to 1.432 +/- 157.1 g/cm(2) following decalcification (p<0.001). In group 1, the mean pullout strength of primary screws significantly decreased from 3443 +/- 1086 N/m(2) to 2088 +/- 924 N/m(2) following pedicle screw augmentation (p=0.006). In group 2 the mean pullout strength of primary screws decreased from 3702 +/- 1063 N/m(2) to 3664 +/- 1057N/m(2) following kyphoplasty augmentation (p=0.934). Pedicle screw augmentation group achieved significantly lower pullout strength values than kyphoplasty pedicle hole augmentation group (p=0.002). Conclusion: Although pedicle hole PMMA augmentation is the gold standard for the failed screws in an osteoporotic bone, kyphoplasty augmented pedicle screw seems to be more effective method increasing the pullout strength.en_US
dc.identifier.citationDerincek A., Türker M., Çınar M., Kalaycıoğlu B., Çetik Ö. (2012). Revision of the failed pedicle screw in osteoporotic lumbar spine: Biomechanical comparison of kyphoplasty versus transpedicular polymethylmethacrylate augmentation. Eklem Hastalıkları ve Cerrahisi Dergisi (Eski Adı: Artroplasti Artroskopik Cerrahi Derg.), 23(2), 106 - 110.en_US
dc.identifier.endpage110en_US
dc.identifier.issn1305-8282
dc.identifier.issue2en_US
dc.identifier.pmid22765490
dc.identifier.scopus2-s2.0-84865532913
dc.identifier.scopusqualityN/A
dc.identifier.startpage106en_US
dc.identifier.trdizinid155518
dc.identifier.urihttps://hdl.handle.net/20.500.12587/5354
dc.identifier.volume23en_US
dc.identifier.wosWOS:000307145800010
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTurkish Joint Diseases Foundationen_US
dc.relation.ispartofEklem Hastaliklari Ve Cerrahisi-Joint Diseases And Related Surgery
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBone screwsen_US
dc.subjectlumbar vertebrae surgeryen_US
dc.subjectosteoporosisen_US
dc.subjecttreatmenten_US
dc.subjectfailureen_US
dc.titleRevision of the failed pedicle screw in osteoporotic lumbar spine: Biomechanical comparison of kyphoplasty versus transpedicular polymethylmethacrylate augmentationen_US
dc.typeArticle

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