Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical training

Introduction and objectives: Lumbar spinal stenosis is a common age-related condition that affects the quality of life. Multiple classifications have been developed to quantify the severity of stenosis affecting comparison between studies and homogenous communication among surgeons and researchers....

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Main Authors: F. Holc, A. Albani-Forneris, G. Kido, S. Beltrame, M. Petracchi, M. Gruenberg, C. Sola, G. Camino-Willhuber
Format: Article
Language:English
Published: Elsevier 2023-05-01
Series:Revista Española de Cirugía Ortopédica y Traumatología
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1888441522002867
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author F. Holc
A. Albani-Forneris
G. Kido
S. Beltrame
M. Petracchi
M. Gruenberg
C. Sola
G. Camino-Willhuber
author_facet F. Holc
A. Albani-Forneris
G. Kido
S. Beltrame
M. Petracchi
M. Gruenberg
C. Sola
G. Camino-Willhuber
author_sort F. Holc
collection DOAJ
description Introduction and objectives: Lumbar spinal stenosis is a common age-related condition that affects the quality of life. Multiple classifications have been developed to quantify the severity of stenosis affecting comparison between studies and homogenous communication among surgeons and researchers. Even though this classification has not shown a direct clinical correlation, Schizas's classification appears to be a simple method to assess stenosis. Our objective was to evaluate the inter and intraobserver independent agreement of the Schizas's classification to assess stenosis severity. Additionally, we aimed to compare agreement among three levels of training in spine surgery. Materials and methods: An independent inter and intra observer agreement was conducted among junior, senior orthopedic residents and attending spine surgeons. Ninety lumbar levels from 30 patients were evaluated by 16 observers. Weighted kappa agreement was used. Results: Overall interobserver and intraobserver agreement was of 0.57 (95% CI = 0.52–0.63) and 0.69 (0.55–0.79), respectively. Interobserver agreement according to level of training yielded values of 0.53 (0.46–0.60) for junior residents, 0.61 (0.54–0.67) for senior residents and 0.67 (0.59–0.74) for attendings. Intraobserver agreement was of 0.54 (0.48–0.60) for junior, 0.60 (0.55–0.66) for senior and 0.66 (0.60–0.72) for attendings. Conclusion: The Schizas's classification showed moderate interobserver and substantial intraobserver agreement. Among attending surgeons, substantial inter and intraobserver agreement was observed. The classification allowed acceptable communication among trained spine surgeons. Resumen: Introducción y objetivos: La estenosis espinal lumbar es una condición frecuente relacionada con la edad que afecta la calidad de vida. Se han desarrollado múltiples clasificaciones para cuantificar la gravedad de la estenosis que afectan la comparación entre estudios y la comunicación homogénea entre cirujanos e investigadores. A pesar de que esta clasificación no ha mostrado una correlación directa con la clínica, la clasificación de Schizas parece ser un método simple para evaluar la estenosis. Nuestro objetivo fue evaluar el acuerdo independiente inter e intraobservador de la clasificación de Schizas en la severidad de la estenosis. Además, comparamos la concordancia entre tres niveles de formación en cirugía de columna. Materiales y métodos: Se llevó a cabo un acuerdo independiente inter e intraobservador entre los residentes ortopédicos principiantes, avanzados y los cirujanos de columna; 90 niveles lumbares de 30 pacientes fueron evaluados por 16 observadores. Se utilizó concordancia a través del kappa ponderado. Resultados: La concordancia global interobservador e intraobservador fue de 0,57 (IC 95% = 0,52-0,63) y 0,69 (0,55-0,79), respectivamente. La concordancia interobservador según el nivel de formación arroja valores de 0,53 (0,46-0,60) para los residentes menores, 0,61 (0,54-0,67) para los residentes mayores y 0,67 (0,59-0,74) para los asistentes. La concordancia intraobservador fue de 0,54 (0,48-0,60) para principiantes, 0,60 (0,55-0,66) para avanzados y 0,66 (0,60-0,72) para cirujanos de columna. Conclusión: La clasificación de Schizas mostró concordancia interobservador moderada y concordancia intraobservador sustancial. Entre los cirujanos de columna, se observó un acuerdo sustancial inter e intraobservador. La clasificación permitió una comunicación aceptable entre los cirujanos de columna entrenados.
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spelling doaj.art-a5290271378644668c563b52aa2f2a572023-05-05T04:40:14ZengElsevierRevista Española de Cirugía Ortopédica y Traumatología1888-44152023-05-01673175180Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical trainingF. Holc0A. Albani-Forneris1G. Kido2S. Beltrame3M. Petracchi4M. Gruenberg5C. Sola6G. Camino-Willhuber7Orthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, ArgentinaOrthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, ArgentinaOrthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, ArgentinaOrthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, ArgentinaOrthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, ArgentinaOrthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, ArgentinaOrthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, ArgentinaOrthopaedic and Traumatology Department, Institute of Orthopedics “Carlos E. Ottolenghi,” Hospital Italiano de Buenos Aires, Buenos Aires, Argentina; Department of Orthopaedics, University of California at Irvine, 101 The City Drive South, Orange, CA 92868, USA; Corresponding author.Introduction and objectives: Lumbar spinal stenosis is a common age-related condition that affects the quality of life. Multiple classifications have been developed to quantify the severity of stenosis affecting comparison between studies and homogenous communication among surgeons and researchers. Even though this classification has not shown a direct clinical correlation, Schizas's classification appears to be a simple method to assess stenosis. Our objective was to evaluate the inter and intraobserver independent agreement of the Schizas's classification to assess stenosis severity. Additionally, we aimed to compare agreement among three levels of training in spine surgery. Materials and methods: An independent inter and intra observer agreement was conducted among junior, senior orthopedic residents and attending spine surgeons. Ninety lumbar levels from 30 patients were evaluated by 16 observers. Weighted kappa agreement was used. Results: Overall interobserver and intraobserver agreement was of 0.57 (95% CI = 0.52–0.63) and 0.69 (0.55–0.79), respectively. Interobserver agreement according to level of training yielded values of 0.53 (0.46–0.60) for junior residents, 0.61 (0.54–0.67) for senior residents and 0.67 (0.59–0.74) for attendings. Intraobserver agreement was of 0.54 (0.48–0.60) for junior, 0.60 (0.55–0.66) for senior and 0.66 (0.60–0.72) for attendings. Conclusion: The Schizas's classification showed moderate interobserver and substantial intraobserver agreement. Among attending surgeons, substantial inter and intraobserver agreement was observed. The classification allowed acceptable communication among trained spine surgeons. Resumen: Introducción y objetivos: La estenosis espinal lumbar es una condición frecuente relacionada con la edad que afecta la calidad de vida. Se han desarrollado múltiples clasificaciones para cuantificar la gravedad de la estenosis que afectan la comparación entre estudios y la comunicación homogénea entre cirujanos e investigadores. A pesar de que esta clasificación no ha mostrado una correlación directa con la clínica, la clasificación de Schizas parece ser un método simple para evaluar la estenosis. Nuestro objetivo fue evaluar el acuerdo independiente inter e intraobservador de la clasificación de Schizas en la severidad de la estenosis. Además, comparamos la concordancia entre tres niveles de formación en cirugía de columna. Materiales y métodos: Se llevó a cabo un acuerdo independiente inter e intraobservador entre los residentes ortopédicos principiantes, avanzados y los cirujanos de columna; 90 niveles lumbares de 30 pacientes fueron evaluados por 16 observadores. Se utilizó concordancia a través del kappa ponderado. Resultados: La concordancia global interobservador e intraobservador fue de 0,57 (IC 95% = 0,52-0,63) y 0,69 (0,55-0,79), respectivamente. La concordancia interobservador según el nivel de formación arroja valores de 0,53 (0,46-0,60) para los residentes menores, 0,61 (0,54-0,67) para los residentes mayores y 0,67 (0,59-0,74) para los asistentes. La concordancia intraobservador fue de 0,54 (0,48-0,60) para principiantes, 0,60 (0,55-0,66) para avanzados y 0,66 (0,60-0,72) para cirujanos de columna. Conclusión: La clasificación de Schizas mostró concordancia interobservador moderada y concordancia intraobservador sustancial. Entre los cirujanos de columna, se observó un acuerdo sustancial inter e intraobservador. La clasificación permitió una comunicación aceptable entre los cirujanos de columna entrenados.http://www.sciencedirect.com/science/article/pii/S1888441522002867Acuerdo independienteClasificación de SchizasEstenosis espinal lumbar
spellingShingle F. Holc
A. Albani-Forneris
G. Kido
S. Beltrame
M. Petracchi
M. Gruenberg
C. Sola
G. Camino-Willhuber
Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical training
Revista Española de Cirugía Ortopédica y Traumatología
Acuerdo independiente
Clasificación de Schizas
Estenosis espinal lumbar
title Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical training
title_full Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical training
title_fullStr Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical training
title_full_unstemmed Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical training
title_short Independent inter and intra-observer agreement of the Schizas's classification of degenerative lumbar stenosis: Comparison among three levels of surgical training
title_sort independent inter and intra observer agreement of the schizas s classification of degenerative lumbar stenosis comparison among three levels of surgical training
topic Acuerdo independiente
Clasificación de Schizas
Estenosis espinal lumbar
url http://www.sciencedirect.com/science/article/pii/S1888441522002867
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