Superficial and Deep Temperature Changes in Joint and Muscle after Ultrasound Diathermy in Animal Model

超音波熱療應用於動物關節及肌肉之深淺層溫度改變

王淑芬(Shwu-Fen Wang) ； 簡盟月(Meng-Yue Chien) ； 林居正(Jiu-Jenq Lin) ； 陳昭瑩(Chao-Ying Chen) ； 詹美華(Mei-Hwa Jan)

《中華民國物理治療學會雜誌》 20卷1期 (1995/03) Pp. 10-17

https://doi.org/10.29616/JPTAROC.199503.0002

摘要

Therapeutic ultrasound is applied in the treatment of tendinitis, ligament sprain, wound care, and scar adhesion. The mechanism of therapeutic ultrasound includes thermal and mechanical effect. The principal effect of ultrasound is elevation of tissue temperature and accelerating tissue repair. To study the superficial and deep temperature change in joint and muscle areas after ultrasound diathermy, isolated chicken leg model was used in this study. The skin and subcutaneous tissue was removed, so that the ultrasound could enter the applied joint and muscle tissue through media directly. The isolated chicken leg also excluded the factor of different blood flow in the joint and muscle areas, and provided a very simplified model to compare the effect of temperature change in the joint and muscle. Clinical used ultrasound machine was set in the intensity of 1.5 W/cm2, frequency of] MHz, and applied with circular moving technique for 7 minutes. The superficial temperature at the surface, and the deep temperature at 1.5cm depth were measured before ultrasound diathermy, and 1 minute, 5 minutes, 10 minutes, 20 minutes after the application of ultrasound. The results showed that the superficial and deep temperatures of joint and muscle were significantly greater than the pre-test temperature (p＜0.05). Comparing the temperature rise at 1 minute after ultrasound to pre-test temperature, for both joint and muscle areas, the temperature rise at the deep sites is greater than the rise at superficial site
(p＜0.05). However, there is no significant difference between the temperature rise at joint and muscle areas (p＞0.05). These results demonstrated that in the isolated chicken leg model, both joint and muscle tissue could be heated effectively in the superficial and deep sites with therapeutic ultrasound. This result supports the common use of ultrasound in the treatment of problems in tendon, ligament and capsule around the joints, also suggests the effective use of ultrasound in the treatment of muscle problems, such as myofacial pain, muscle strain. The temperature increase, blood flow change in the muscle, and the optimal parameter of therapeutic ultrasound for muscle need further investigation.

關鍵字

超音波熱療 ； 溫度變化

並列摘要

Therapeutic ultrasound is applied in the treatment of tendinitis, ligament sprain, wound care, and scar adhesion. The mechanism of therapeutic ultrasound includes thermal and mechanical effect. The principal effect of ultrasound is elevation of tissue temperature and accelerating tissue repair. To study the superficial and deep temperature change in joint and muscle areas after ultrasound diathermy, isolated chicken leg model was used in this study. The skin and subcutaneous tissue was removed, so that the ultrasound could enter the applied joint and muscle tissue through media directly. The isolated chicken leg also excluded the factor of different blood flow in the joint and muscle areas, and provided a very simplified model to compare the effect of temperature change in the joint and muscle. Clinical used ultrasound machine was set in the intensity of 1.5 W/cm2, frequency of] MHz, and applied with circular moving technique for 7 minutes. The superficial temperature at the surface, and the deep temperature at 1.5cm depth were measured before ultrasound diathermy, and 1 minute, 5 minutes, 10 minutes, 20 minutes after the application of ultrasound. The results showed that the superficial and deep temperatures of joint and muscle were significantly greater than the pre-test temperature (p＜0.05). Comparing the temperature rise at 1 minute after ultrasound to pre-test temperature, for both joint and muscle areas, the temperature rise at the deep sites is greater than the rise at superficial site
(p＜0.05). However, there is no significant difference between the temperature rise at joint and muscle areas (p＞0.05). These results demonstrated that in the isolated chicken leg model, both joint and muscle tissue could be heated effectively in the superficial and deep sites with therapeutic ultrasound. This result supports the common use of ultrasound in the treatment of problems in tendon, ligament and capsule around the joints, also suggests the effective use of ultrasound in the treatment of muscle problems, such as myofacial pain, muscle strain. The temperature increase, blood flow change in the muscle, and the optimal parameter of therapeutic ultrasound for muscle need further investigation.

並列關鍵字

Ultrasound diathermy ； Temperature change