The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver study

Abstract Background Radio frequency ablation devices have found a widespread application in arthroscopic surgery. However, recent publications report about elevated temperatures, which may cause damage to the capsular tissue and especially to chondrocytes. The purpose of this study was the investiga...

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Main Authors: Philipp Ahrens, Dirk Mueller, Sebastian Siebenlist, Andreas Lenich, Ulrich Stoeckle, Gunther H. Sandmann
Format: Article
Language:English
Published: BMC 2018-11-01
Series:BMC Musculoskeletal Disorders
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12891-018-2347-5
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author Philipp Ahrens
Dirk Mueller
Sebastian Siebenlist
Andreas Lenich
Ulrich Stoeckle
Gunther H. Sandmann
author_facet Philipp Ahrens
Dirk Mueller
Sebastian Siebenlist
Andreas Lenich
Ulrich Stoeckle
Gunther H. Sandmann
author_sort Philipp Ahrens
collection DOAJ
description Abstract Background Radio frequency ablation devices have found a widespread application in arthroscopic surgery. However, recent publications report about elevated temperatures, which may cause damage to the capsular tissue and especially to chondrocytes. The purpose of this study was the investigation of the maximum temperatures that occur in the ankle joint with the use of a commercially available radio frequency ablation device. Methods Six formalin-fixed cadaver ankle specimens were used for this study. The radio frequency device was applied for 120 s to remove tissue. Intra-articular temperatures were logged every second for 120 s at a distance of 3, 5 and 10 mm from the tip of the radio frequency device. The irrigation fluid flow was controlled by setting the inflow pressure to 10 mmHg, 25 mmHg, 50 mmHg and 100 mmHg, respectively. The controller unit voltage setting was set to 1, 5 and 9. Results Maximum temperatures exceeding 50 °C/122 °F were observed for all combinations of parameters, except for those with a pressure of 100 mmHg pressure. The main critical variable is the pressure setting, which is highly significant. The controller unit voltage setting showed no effect on the temperature measurements. The highest temperature was 102.7 °C/215.6 °F measured for an irrigation flow of 10 mmHg. The shortest time span to exceed 50 °C/122 °F was 3 s. Conclusion In order to avoid temperatures exceeding 50 °C/122 °F in the use of radio frequency devices in arthroscopic surgeries of the ankle joint, it is recommended to use a high irrigation flow by setting the pressure difference across the ankle joint as high as feasible. Even short intervals of a low irrigation flow may lead to critical temperatures above 50 °C/122 °F. Level of Evidence Level II, diagnostic study.
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spelling doaj.art-cd6c4fc83ea241c698e925864679128b2022-12-22T01:20:59ZengBMCBMC Musculoskeletal Disorders1471-24742018-11-011911910.1186/s12891-018-2347-5The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver studyPhilipp Ahrens0Dirk Mueller1Sebastian Siebenlist2Andreas Lenich3Ulrich Stoeckle4Gunther H. Sandmann5Department of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technische Universitaet Muenchen, GermanySchön Klinik HarthausenDepartment of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technische Universitaet Muenchen, GermanyDepartment of Orthopaedic Sports Medicine, Klinikum rechts der Isar, Technische Universitaet Muenchen, GermanyBG Unfallklinik TuebingenBG Unfallklinik TuebingenAbstract Background Radio frequency ablation devices have found a widespread application in arthroscopic surgery. However, recent publications report about elevated temperatures, which may cause damage to the capsular tissue and especially to chondrocytes. The purpose of this study was the investigation of the maximum temperatures that occur in the ankle joint with the use of a commercially available radio frequency ablation device. Methods Six formalin-fixed cadaver ankle specimens were used for this study. The radio frequency device was applied for 120 s to remove tissue. Intra-articular temperatures were logged every second for 120 s at a distance of 3, 5 and 10 mm from the tip of the radio frequency device. The irrigation fluid flow was controlled by setting the inflow pressure to 10 mmHg, 25 mmHg, 50 mmHg and 100 mmHg, respectively. The controller unit voltage setting was set to 1, 5 and 9. Results Maximum temperatures exceeding 50 °C/122 °F were observed for all combinations of parameters, except for those with a pressure of 100 mmHg pressure. The main critical variable is the pressure setting, which is highly significant. The controller unit voltage setting showed no effect on the temperature measurements. The highest temperature was 102.7 °C/215.6 °F measured for an irrigation flow of 10 mmHg. The shortest time span to exceed 50 °C/122 °F was 3 s. Conclusion In order to avoid temperatures exceeding 50 °C/122 °F in the use of radio frequency devices in arthroscopic surgeries of the ankle joint, it is recommended to use a high irrigation flow by setting the pressure difference across the ankle joint as high as feasible. Even short intervals of a low irrigation flow may lead to critical temperatures above 50 °C/122 °F. Level of Evidence Level II, diagnostic study.http://link.springer.com/article/10.1186/s12891-018-2347-5Ankle jointRadio frequencyAblationThermal damageChondrocytes
spellingShingle Philipp Ahrens
Dirk Mueller
Sebastian Siebenlist
Andreas Lenich
Ulrich Stoeckle
Gunther H. Sandmann
The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver study
BMC Musculoskeletal Disorders
Ankle joint
Radio frequency
Ablation
Thermal damage
Chondrocytes
title The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver study
title_full The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver study
title_fullStr The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver study
title_full_unstemmed The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver study
title_short The influence of radio frequency ablation on intra-articular fluid temperature in the ankle joint - a cadaver study
title_sort influence of radio frequency ablation on intra articular fluid temperature in the ankle joint a cadaver study
topic Ankle joint
Radio frequency
Ablation
Thermal damage
Chondrocytes
url http://link.springer.com/article/10.1186/s12891-018-2347-5
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