Shellock Frank G
University of Southern California School of Medicine, Los Angeles, USA.
J Knee Surg. 2002 Spring;15(2):90-6.
This in vitro investigation determined temperature changes associated with radiofrequency energy-induced heating of bovine articular cartilage using a newly developed, temperature-controlled, bipolar radiofrequency system at different settings. Cartilage tissue samples were placed in a saline bath maintained at room temperature. Radiofrequency energy was applied using a temperature-controlled, bipolar radiofrequency system at four different settings. Fluoroptic thermometry recorded temperatures at the radiofrequency electrode-tissue interface at 1-second intervals before, during delivery (1-5 seconds), and after delivery (1-3 seconds) of radiofrequency energy. Ten data acquisitions were obtained at each equipment setting. There were statistically significant (P<.05) increases in cartilage tissue temperatures associated with the different temperature settings. The temperature at the radiofrequency electrode-tissue interface was relatively close to the equipment's set temperature. These data provide basic information for the temperature-controlled, bipolar radiofrequency system applied to articular cartilage and may be useful in guiding electrosurgical equipment for thermal-assisted chondroplasty.
这项体外研究使用一种新开发的、温度可控的双极射频系统，在不同设置下，测定了与射频能量诱导牛关节软骨加热相关的温度变化。软骨组织样本被置于室温的盐浴中。使用温度可控的双极射频系统在四种不同设置下施加射频能量。荧光温度测定法在射频能量输送前（1秒间隔）、输送期间（1 - 5秒）和输送后（1 - 3秒），以1秒的间隔记录射频电极 - 组织界面处的温度。在每个设备设置下获取了十次数据采集。与不同温度设置相关的软骨组织温度有统计学显著升高（P <.05）。射频电极 - 组织界面处的温度相对接近设备的设定温度。这些数据为应用于关节软骨的温度可控双极射频系统提供了基础信息，可能有助于指导用于热辅助软骨成形术的电外科设备。
