Atrophic pseudoarthrosis. Effect of application of extracorporeal shock waves in an experimental model in tibia of rabbits.

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Jorge Javier del Vecchio
Marcos Galli Serra
Rafael Martínez Gallino
Juan Pablo Guyot
Diego Amadeo Piazza
Nicolás Raimondi
Martín Caloia
Eduardo Santini Araujo
Carlos María Autorino

Abstract

IntroductionThe effects of extracorporeal shock wave therapy (ESWT) have been investigated in: human osteoblasts, fracture foci, non union and periosteum cells. The best results of non union treatment with ESWT have been documented for hypertrophic type. The objective of this study is to investigate the effects of ESWT in an atrophic non union focus generated in a rabbit tibia model.MethodsThree groups were included:  a) Group A: fractures receiving extracorporeal shock wave therapy (ESWT); b) Group B: (“control”): fractures not receiving ESWT; c) Group C: no fractures (right leg). Staining with hematoxylin-eosin was performed. ESWT included one session of 2000 extracorporeal shock wave impacts at 10 kV. A biomechanical analysis with a 3-point loading system was performed. Eighteen samples were included in the biomechanical study, 7 in Group A, 3 in Group B and 8 in group C. The samples were placed between two 19 mm cylindrical supports which were 75 mm apart, oriented concentrically to the compression punch.ResultsThe histological test evidenced signs of union - periosteal and endosteal fracture callus - which were considerably larger in the tibias in Group A (treated with extracorporeal shock wave therapy) as compared to the control group (Group B). The maximum load for the healthy tibia Group (Group C) was higher as compared to Groups A (p<0.001; t:7.988) and B (p<0.001; t:6.599).ConclusionThis report shows a significant radiographic and histological changes after focus intervention with application of ESWT.

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How to Cite
del Vecchio, J. J., Galli Serra, M., Martínez Gallino, R., Guyot, J. P., Piazza, D. A., Raimondi, N., Caloia, M., Santini Araujo, E., & Autorino, C. M. (2017). Atrophic pseudoarthrosis. Effect of application of extracorporeal shock waves in an experimental model in tibia of rabbits. Revista De La Asociación Argentina De Ortopedia Y Traumatología, 82(4), 321-326. https://doi.org/10.15417/706
Section
Basic Research
Author Biographies

Jorge Javier del Vecchio, Fundación Favaloro

Sección Pie y Tobillo, Fundación Favaloro, Ciudad Autónoma de Buenos Aires

Marcos Galli Serra, Hospital Universitario Austral

Servicio de Ortopedia y Traumatología, Hospital Universitario Austral, Buenos Aires

Rafael Martínez Gallino, Clínica Romagosa Sanatorio Allende

Centro de Ortopedia y Traumatología, Sanatorio Allende, Córdoba

Juan Pablo Guyot, Hospital Universitario Austral

Servicio de Ortopedia y Traumatología, Hospital Universitario Austral, Buenos Aires

Diego Amadeo Piazza, Fundación Favaloro

Sección Pie y Tobillo, Fundación Favaloro, Ciudad Autónoma de Buenos Aires

Nicolás Raimondi, Hospital Universitario Austral

Servicio de Ortopedia y Traumatología, Hospital Universitario Austral, Buenos Aires

Martín Caloia, Hospital Universitario Austral

Servicio de Ortopedia y Traumatología, Hospital Universitario Austral, Buenos Aires

Eduardo Santini Araujo, Laboratorio de Patología Ortopédica.

Laboratorio de Patología Ortopédica, Ciudad Autónoma de Buenos Aires

Carlos María Autorino, Hospital Universitario Austral

Servicio de Ortopedia y Traumatología, Hospital Universitario Austral, Buenos Aires

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