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Impact of monopolar radiofrequency energy on subchondral bone viability

The purpose of this study was to analyze the impact of monopolar radiofrequency energy treatment on subchondral bone viability. The femoral grooves of six chinchilla bastard rabbits were exposed bilaterally to monopolar radiofrequency energy for 2, 4 and 8 s, creating a total of 36 defects. An intra...

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Autores principales: Balcarek, Peter, Kuhn, Anke, Weigel, Arwed, Walde, Tim A., Ferlemann, Keno G., Stürmer, Klaus M., Frosch, Karl-Heinz
Formato: Texto
Lenguaje:English
Publicado: Springer-Verlag 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855021/
https://www.ncbi.nlm.nih.gov/pubmed/19838673
http://dx.doi.org/10.1007/s00167-009-0949-z
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author Balcarek, Peter
Kuhn, Anke
Weigel, Arwed
Walde, Tim A.
Ferlemann, Keno G.
Stürmer, Klaus M.
Frosch, Karl-Heinz
author_facet Balcarek, Peter
Kuhn, Anke
Weigel, Arwed
Walde, Tim A.
Ferlemann, Keno G.
Stürmer, Klaus M.
Frosch, Karl-Heinz
author_sort Balcarek, Peter
collection PubMed
description The purpose of this study was to analyze the impact of monopolar radiofrequency energy treatment on subchondral bone viability. The femoral grooves of six chinchilla bastard rabbits were exposed bilaterally to monopolar radiofrequency energy for 2, 4 and 8 s, creating a total of 36 defects. An intravital fluorescence bone-labeling technique characterized the process of subchondral bone mineralization within the 3 months following exposure to radiofrequency energy and was analyzed by widefield epifluorescence optical sectioning microscopy using an ApoTome. After 2 s of radiofrequency energy exposure, regular fluorescence staining of the subchondral bone was evident in all samples when compared to untreated areas. The depth of osteonecrosis after 4 and 8 s of radiofrequency energy treatment averaged 126 and 942 µm at 22 days (P < .05; P < .01). The 4 s treatment group showed no osteonecrosis after 44 days whereas the depth of osteonecrosis extended from 519 µm at 44 days (P < .01), to 281 µm at 66 days (P < .01) and to 133 µm at 88 days (P < .05) after 8 s of radiofrequency energy application. Though radiofrequency energy may induce transient osteonecrosis in the superficial zone of the subchondral bone, the results of this study suggest that post-arthroscopic osteonecrosis appears to be of only modest risk given the current clinical application in humans.
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spelling pubmed-28550212010-04-25 Impact of monopolar radiofrequency energy on subchondral bone viability Balcarek, Peter Kuhn, Anke Weigel, Arwed Walde, Tim A. Ferlemann, Keno G. Stürmer, Klaus M. Frosch, Karl-Heinz Knee Surg Sports Traumatol Arthrosc Experimental Study The purpose of this study was to analyze the impact of monopolar radiofrequency energy treatment on subchondral bone viability. The femoral grooves of six chinchilla bastard rabbits were exposed bilaterally to monopolar radiofrequency energy for 2, 4 and 8 s, creating a total of 36 defects. An intravital fluorescence bone-labeling technique characterized the process of subchondral bone mineralization within the 3 months following exposure to radiofrequency energy and was analyzed by widefield epifluorescence optical sectioning microscopy using an ApoTome. After 2 s of radiofrequency energy exposure, regular fluorescence staining of the subchondral bone was evident in all samples when compared to untreated areas. The depth of osteonecrosis after 4 and 8 s of radiofrequency energy treatment averaged 126 and 942 µm at 22 days (P < .05; P < .01). The 4 s treatment group showed no osteonecrosis after 44 days whereas the depth of osteonecrosis extended from 519 µm at 44 days (P < .01), to 281 µm at 66 days (P < .01) and to 133 µm at 88 days (P < .05) after 8 s of radiofrequency energy application. Though radiofrequency energy may induce transient osteonecrosis in the superficial zone of the subchondral bone, the results of this study suggest that post-arthroscopic osteonecrosis appears to be of only modest risk given the current clinical application in humans. Springer-Verlag 2009-10-17 2010 /pmc/articles/PMC2855021/ /pubmed/19838673 http://dx.doi.org/10.1007/s00167-009-0949-z Text en © The Author(s) 2009 https://creativecommons.org/licenses/by-nc/4.0/ This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
spellingShingle Experimental Study
Balcarek, Peter
Kuhn, Anke
Weigel, Arwed
Walde, Tim A.
Ferlemann, Keno G.
Stürmer, Klaus M.
Frosch, Karl-Heinz
Impact of monopolar radiofrequency energy on subchondral bone viability
title Impact of monopolar radiofrequency energy on subchondral bone viability
title_full Impact of monopolar radiofrequency energy on subchondral bone viability
title_fullStr Impact of monopolar radiofrequency energy on subchondral bone viability
title_full_unstemmed Impact of monopolar radiofrequency energy on subchondral bone viability
title_short Impact of monopolar radiofrequency energy on subchondral bone viability
title_sort impact of monopolar radiofrequency energy on subchondral bone viability
topic Experimental Study
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2855021/
https://www.ncbi.nlm.nih.gov/pubmed/19838673
http://dx.doi.org/10.1007/s00167-009-0949-z
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