目前,临床上应用了温热疗法的科有皮肤、脑外、内、外、妇产、泌尿以及放射线等科。然而在整形外科领域,1988年在菅原務会长的主持下,在京都召开了第5回国际温热疗法学会,当时无论在国内、国外几乎都只是对温热疗法的基础研究,都没有应用于临床,特别对骨恶性肿瘤的温热疗法可以说没有。其原因是,根据历来人体模型的加温实验,一般深部加温必使用高频波,而骨有较高的抗电作用,电波很难通过,温度得不到充分的上升,进而电波集中在接近骨周围的软组织,并产生异常高温。因而确信即使在生物体内也将产生同样的现象。于是,我们把与人体四肢类似的活猪的大腿作研究对象,用RF8的高频波进行实验,结果是,骨是有可能加热到抗肿瘤效果较强的42.5℃以上的,而骨周围的组织没有出现异常现象,因为在组织学上未发现有特别的异常,因而认为对骨及软骨组织的恶性肿瘤 At present, clinically applied thermotherapy departments include skin, extracerebral, internal, external, maternity, urology, and radiation. However, in the field of orthopedics, in 1988, under the auspices of the Chairman of the Council of Ministers, the 5th International Society of Thermotherapeutics was held in Kyoto. At that time, almost no basic research on thermotherapy was applied at home and abroad. Clinically, it can be said that there is no thermotherapy for bone cancer. The reason is that, according to the heating experiment of the human body model in the past, in general, high-frequency waves must be used for deep heating, and the bone has a high anti-electrical effect, the electric wave is difficult to pass, the temperature is not sufficiently raised, and the electric wave is concentrated on the bones. Soft tissue around and produces abnormally high temperatures. Therefore, it is believed that the same phenomenon will occur even in the living body. Therefore, we studied the thighs of living pigs that were similar to the limbs of the human body. Experiments were conducted with high frequency waves of RF8. As a result, the bones were likely to be heated above 42.5°C with strong anti-tumor effects, but the tissues around the bones were not. Abnormal phenomenon occurs because no special abnormality is found on histology, so malignancy to bone and cartilage tissue is considered.