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Time to Surgery for Subaxial Cervical Fractures: A Multicenter Study
(2024)
Guisela Quinteros
;
Guillermo Ricciardi
;
Ignacio Cirillo
;
Edgar Marquez García
;
Juan P. Cabrera
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Management of Unilateral Cervical Facet Joint Dislocation in Neurologically Intact Patients: Results of an Ao Spine latin American Survey
(2021)
Andrei F. Joaquim
;
YURAC BARRIENTOS, RATKO JOVAN
;
Marcelo Valacco
;
Orlando R. Neto
;
Charles A. Carazzo
9Scopus© Citations 7
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Time to Surgery for Unstable Thoracolumbar Fractures in Latin America—A Multicentric Study
(2021)
Alfredo Guiroy
;
Charles A. Carazzo
;
Juan J. Zamorano
;
Juan P. Cabrera
;
Andrei F. Joaquim
5Scopus© Citations 9
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Independent Reliability Analysis of a New Classification for Pyogenic Spondylodiscitis
(2020)
Gaston Camino Willhuber
;
Alfredo Guiroy
;
ZAMORANO PÉREZ, JUAN JOSÉ
;
Nelson Astur
;
Marcelo Valacco
<jats:sec><jats:title>Study Design:</jats:title><jats:p> Diagnostic study, level of evidence III. </jats:p></jats:sec><jats:sec><jats:title>Objective:</jats:title><jats:p> Pyogenic spondylodiscitis can cause deformity, neurological compromise, disability, and death. Recently, a new classification of spondylodiscitis based on magnetic resonance imaging was published. The objective of this study is to perform an independent reliability analysis of this new classification. </jats:p></jats:sec><jats:sec><jats:title>Methods:</jats:title><jats:p> We selected 35 cases from our database of different spine centers in Latin America and from the literature; 8 observers evaluated the classification and graded the scenarios according to the methodological grading of the classification developed by Pola et al. Cases were sent to the observers in a random sequence after 3 weeks to assess intraobserver reliability. The interobserver and intraobserver reliabilities were performed with Fleiss and Cohen statistics, respectively. </jats:p></jats:sec><jats:sec><jats:title>Results:</jats:title><jats:p> The overall Fleiss κ value for interobserver agreement was substantial, with 0.67 (95% CI = 0.43-0.91) in the first reading and 0.67 (95% CI = 0.45-0.89) in second reading for the main types of classification. The Cohen κ value for intraobserver agreement was also substantial, with 0.68 (95% CI = 0.45-0.92). The interobserver agreement analysis for the subtypes of this classification was overall substantial, with 0.60 (95% CI = 0.37-0.83) in the first reading and 0.61 (95% CI = 0.41-0.81) in the second reading. The overall intraobserver agreement for subtypes of the classification was also substantial, with 0.63 (95% CI = 0.34-0.93). </jats:p></jats:sec><jats:sec><jats:title>Conclusion:</jats:title><jats:p> The new classification developed by Pola et al showed substantial interobserver and intraobserver agreements. More studies are required to validate the usefulness of this classification especially in clinical practice. </jats:p></jats:sec>
Scopus© Citations 14 7
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Minimally Invasive Versus Open Surgery for the Treatment of Types B and C Thoracolumbar Injuries: A PRISMA Systematic Review
(2021)
Charles André Carazzo
;
YURAC BARRIENTOS, RATKO JOVAN
;
Alfredo Guiroy
;
Juan J. Zamorano
;
Juan P. Cabrera
Scopus© Citations 11 4
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CT Scan in Subaxial Cervical Facet Injury: Is It Enough for Decision-Making?
(2021)
Juan P. Cabrera
;
YURAC BARRIENTOS, RATKO JOVAN
;
Andrei F. Joaquim
;
Alfredo Guiroy
;
Charles A. Carazzo
<jats:sec><jats:title>Study Design:</jats:title><jats:p> Cross-sectional survey. </jats:p></jats:sec><jats:sec><jats:title>Objectives:</jats:title><jats:p> Assessment of subaxial cervical facet injuries using the AO Spine Subaxial Cervical Spine Injury Classification System is based on CT scan findings. However, additional radiological evaluations are not directly considered. The aim of this study is to determine situations in which spine surgeons request additional radiological exams after a facet fracture. </jats:p></jats:sec><jats:sec><jats:title>Methods:</jats:title><jats:p> A survey was sent to AO Spine members from Latin America. The evaluation considered demographic variables, routine use of the Classification, as well as the timepoint at which surgeons requested a cervical MRI, a vascular study, and/ or dynamic radiographs before treatment of facet fractures. </jats:p></jats:sec><jats:sec><jats:title>Results:</jats:title><jats:p> There was 229 participants, mean age 42.9 ± 10.2 years; 93.4% were men. Orthopedic surgeons 57.6% with 10.7 ± 8.7 years of experience in spine surgery. A total of 86% used the Classification in daily practice. An additional study (MRI/vascular study/and dynamic radiographs) was requested in 53.3%/9.6%/43.7% in F1 facet injuries; 76.0%/20.1%/50.2% in F2; 89.1%/65.1%/28.4% in F3; and 94.8%/66.4%/16.6% in F4. An additional study was frequently required: F1 72.5%, F2 86.9%, F3 94.7%, and F4 96.1%. </jats:p></jats:sec><jats:sec><jats:title>Conclusions:</jats:title><jats:p> Spine surgeons generally requested additional radiological evaluations in facet injuries, and MRI was the most common. Dynamic radiographs had a higher prevalence for F1/F2 fractures; vascular studies were more common for F3/F4 especially among surgeons with fewer years of experience. Private hospitals had a lower spine trauma cases/year and requested more MRI and more dynamic radiographs in F1/F2. Neurosurgeons had more vascular studies and dynamic radiographs than orthopedic surgeons in all facet fractures. </jats:p></jats:sec>
6Scopus© Citations 4
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In Reply to the Letter to the Editor Regarding “Risk Factors for Postoperative Complications After Surgical Treatment of Type B and C Injuries of the Thoracolumbar Spine”
(2023)
Juan P. Cabrera
;
Charles A. Carazzo
;
Alfredo Guiroy
;
Kevin P. White
;
Joana Guasque
11Scopus© Citations 2
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Resection of a sacral chordoma aided by neuronavigation: A case report
(2021)
Alvaro Silva González
;
Guisela Quinteros Rivas
;
Rafael Calvo
;
YURAC BARRIENTOS, RATKO JOVAN
;
Bartolomé Marré Pacheco
1
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COLGAJO MUSCULAR DE ESTERNOCLEIDOMASTOÍDEO PARA EL MANEJO DE PERFORACIÓN ESOFÁGICA TARDÍA.
(2021)
Claudio Borel b
;
Matias Minassian M
;
Eduardo Brigando
;
Diego Reyes
;
Marco Rios V
<jats:p>Introducción: La perforación esofágica es una complicación poco frecuente en la cirugía de columna cervical por vía anterior, sin embargo puede tener graves consecuencias cuando hay demoras en diagnóstico y tratamiento.Casos clínicos: presentamos dos casos clínicos de pacientes con perforación esofágica secundaria a cirugía de columna cervical por vía anterior. Se usaron para su reparación colgajo muscular de esternocleidomastoideo (ECM).Conclusión: La perforación esofágica secundaria a cirugía de columna cervical es poco frecuente, variable desde el punto de vista clínico, el TC y estudio radiológico contrastado son fundamentales en el diagnóstico de esta patología. El colgajo muscular ECM en estos casos es una herramienta fiable y extremadamente útil debido a sus características anatómicas, fácil disección quirúrgica y baja morbilidad asociada.</jats:p>
12
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Letter to the Editor: Is COVID-19 the Cause of Delayed Surgical Treatment of Spine Trauma in Latin America?
(2020)
Juan P. Cabrera
;
Ratko Yurac
;
Alfredo Guiroy
;
Charles A. Carazzo
;
Andrei F. Joaquim
10Scopus© Citations 4

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