REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS

ABSTRACT Objective: To evaluate the reproducibility of a S2-alar iliac (S2AI) screw parameters measurement method by inter and intraobserver reliability. Methods: Cross-sectional study, considering computed tomography exams. Morphometric analysis was performed by multiplanar reconstructions. Scr...

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Main Authors: MARIANA DEMÉTRIO DE SOUSA PONTES, LUCAS AMÉRICO FRANCISCO, LUCAS KLAROSK ISMAEL, CARLOS FERNANDO PEREIRA DA SILVA HERRERO
Format: Article
Language:English
Published: Sociedade Brasileira de Ortopedia e Traumatologia 2021-05-01
Series:Acta Ortopédica Brasileira
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522021000200097&tlng=en
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author MARIANA DEMÉTRIO DE SOUSA PONTES
LUCAS AMÉRICO FRANCISCO
LUCAS KLAROSK ISMAEL
CARLOS FERNANDO PEREIRA DA SILVA HERRERO
author_facet MARIANA DEMÉTRIO DE SOUSA PONTES
LUCAS AMÉRICO FRANCISCO
LUCAS KLAROSK ISMAEL
CARLOS FERNANDO PEREIRA DA SILVA HERRERO
author_sort MARIANA DEMÉTRIO DE SOUSA PONTES
collection DOAJ
description ABSTRACT Objective: To evaluate the reproducibility of a S2-alar iliac (S2AI) screw parameters measurement method by inter and intraobserver reliability. Methods: Cross-sectional study, considering computed tomography exams. Morphometric analysis was performed by multiplanar reconstructions. Screw length, diameter and trajectory angles were the studied variables. To analyze the measurements reproducibility, intraclass correlation coefficient (ICC) was used. Results: Interobserver reliability was classified as strong for screw shortest length (ICC: 0.742) and diameter (ICC: 0.699). Interobserver reliability was classified as moderate for screw longest length (ICC: 0.553) and for screw trajectory angles in the axial plane for the longest (ICC: 0.478) and for the shortest lengths (ICC: 0.591). Intraobserver reliability was interpreted as excellent for screw shortest (ICC: 0.932) and longest lengths (ICC: 0.962) and diameter (ICC: 0.770) and screw trajectory angles in the axial plane for the screw longest (ICC: 0.773) and shortest lengths (ICC: 0.862). There were weak interobserver and strong intraobserver reliabilities for trajectory angle in sagittal plane, but no statistical significance was found. Conclusion: Inter and intraobserver reliability of S2AI screw morphometric parameters were interpreted from moderate to excellent in almost all studied variables, except for the screw trajectory angle in the sagittal plane measurement. Level of Evidence IV, Diagnostic Studies - Investigating a Diagnostic Test.
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spelling doaj.art-c43531e8c6ef4efc8d493bcee65c15362022-12-21T21:29:09ZengSociedade Brasileira de Ortopedia e TraumatologiaActa Ortopédica Brasileira1413-78522021-05-012929710010.1590/1413-785220212902236763REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSISMARIANA DEMÉTRIO DE SOUSA PONTEShttps://orcid.org/0000-0001-5962-1467LUCAS AMÉRICO FRANCISCOhttps://orcid.org/0000-0002-0310-5436LUCAS KLAROSK ISMAELhttps://orcid.org/0000-0002-4185-1931CARLOS FERNANDO PEREIRA DA SILVA HERREROhttps://orcid.org/0000-0002-3387-4797ABSTRACT Objective: To evaluate the reproducibility of a S2-alar iliac (S2AI) screw parameters measurement method by inter and intraobserver reliability. Methods: Cross-sectional study, considering computed tomography exams. Morphometric analysis was performed by multiplanar reconstructions. Screw length, diameter and trajectory angles were the studied variables. To analyze the measurements reproducibility, intraclass correlation coefficient (ICC) was used. Results: Interobserver reliability was classified as strong for screw shortest length (ICC: 0.742) and diameter (ICC: 0.699). Interobserver reliability was classified as moderate for screw longest length (ICC: 0.553) and for screw trajectory angles in the axial plane for the longest (ICC: 0.478) and for the shortest lengths (ICC: 0.591). Intraobserver reliability was interpreted as excellent for screw shortest (ICC: 0.932) and longest lengths (ICC: 0.962) and diameter (ICC: 0.770) and screw trajectory angles in the axial plane for the screw longest (ICC: 0.773) and shortest lengths (ICC: 0.862). There were weak interobserver and strong intraobserver reliabilities for trajectory angle in sagittal plane, but no statistical significance was found. Conclusion: Inter and intraobserver reliability of S2AI screw morphometric parameters were interpreted from moderate to excellent in almost all studied variables, except for the screw trajectory angle in the sagittal plane measurement. Level of Evidence IV, Diagnostic Studies - Investigating a Diagnostic Test.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522021000200097&tlng=enSpineSacroiliac JointSacrumTomographyReproducibility of Results
spellingShingle MARIANA DEMÉTRIO DE SOUSA PONTES
LUCAS AMÉRICO FRANCISCO
LUCAS KLAROSK ISMAEL
CARLOS FERNANDO PEREIRA DA SILVA HERRERO
REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS
Acta Ortopédica Brasileira
Spine
Sacroiliac Joint
Sacrum
Tomography
Reproducibility of Results
title REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS
title_full REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS
title_fullStr REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS
title_full_unstemmed REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS
title_short REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS
title_sort reproducibility of s2 alar iliac screw morphometric analysis
topic Spine
Sacroiliac Joint
Sacrum
Tomography
Reproducibility of Results
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522021000200097&tlng=en
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