Safety and feasibility of lumbar spine for intralaminar screw fixation: a computed tomography-based morphometric study

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dc.authoridkaymaz, burak/0000-0001-6207-8063
dc.contributor.authorKomurcu, Erkam
dc.contributor.authorKaymaz, Burak
dc.contributor.authorAdam, Gurhan
dc.contributor.authorGolge, Umut Hatay
dc.contributor.authorGoksel, Ferdi
dc.contributor.authorOzden, Raif
dc.date.accessioned2025-01-27T20:16:37Z
dc.date.available2025-01-27T20:16:37Z
dc.date.issued2015
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractObjective: The use of intralaminar screws (ILS) in spinal surgery has experienced a recent increase in popularity. The aim of this study is to define the morphological parameters of the lumbar laminas so that guidance may be defined for ILS placement. Methods: The study involved the evaluation of lumbar computed tomography (CT) images of patients. Two hundred thirty-five patients (127 male, 108 female) were included in the study. The mean patient age was 44.2 years (19-78 years). The measured parameters of the lamina were the transverse inner diameter, transverse outer diameter (lamina width), lamina length, subdural space (safe zone), and spinolaminar angle for each lumbar level (L1-L5). Results: The mean transverse outer diameter (L1-L5) ranged from 7.2-7.8 mm, and mean transverse inner diameter ranged from 2.5-3.0 mm. The lamina of L3 had the largest width and the lamina of L1 and L5 the smallest. The mean lamina length was 26.6 mm, ranging from 21.0-34.0 mm, and the mean spinolaminar angle was 124.7 degrees, ranging from 111-135 degrees. The L1 level had the shortest mean lamina length and L4 the lowest spinolaminar angle. Mean subdural space (safe zone), which was narrowest at the L5 level, was 2.4 mm, ranging from 1.3-3.6 mm. Conclusion: ILS of the appropriate size (3.5-4.5 mm) and length (20 and 25 mm) can be used safely in the lumbar spine. However, further biomechanical studies should be performed to measure strength of the fixation.
dc.identifier.doi10.3944/AOTT.2015.14.0201
dc.identifier.endpage529
dc.identifier.issn1017-995X
dc.identifier.issue5
dc.identifier.pmid26422348
dc.identifier.scopus2-s2.0-84944684079
dc.identifier.scopusqualityQ2
dc.identifier.startpage522
dc.identifier.trdizinid194721
dc.identifier.urihttps://doi.org/10.3944/AOTT.2015.14.0201
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/194721
dc.identifier.urihttps://hdl.handle.net/20.500.12428/21322
dc.identifier.volume49
dc.identifier.wosWOS:000363025000011
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherTurkish Assoc Orthopaedics Traumatology
dc.relation.ispartofActa Orthopaedica Et Traumatologica Turcica
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectComputed tomography
dc.subjectintralaminar screw
dc.subjectlamina
dc.subjectlumbar vertebrae
dc.subjectmorphology
dc.subjectsalvage procedure
dc.titleSafety and feasibility of lumbar spine for intralaminar screw fixation: a computed tomography-based morphometric study
dc.typeArticle

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