Peery Jeffrey T, Ledoux William R, Klute Glenn K
Department of Veterans Affairs (VA), Rehabilitation Research and Development Center of Excellence for Limb Loss Prevention and Prosthetic Engineering, VA Puget Sound, Seattle, WA, USA.
J Rehabil Res Dev. 2005 Mar-Apr;42(2):147-54. doi: 10.1682/jrrd.2004.01.0013.
The insulated environment of the lower-limb prosthesis can result in elevated residual-limb skin temperatures that may contribute to skin irritation, blistering, and a reduced quality of life. The design and materials of the prosthetic socket, suspension system, and liner can potentially alleviate these conditions, but the thermal load may vary with activity and location within the socket. To characterize the thermal environment at the skin-prosthesis interface, we made temperature measurements on five transtibial amputees at 14 locations on the residual limbs. After the participants donned their prosthesis and rested in the seated position for 15 min, the mean skin temperatures of their residual limbs increased by 0.8 degrees Celcius. Subsequent walking for 10 min resulted in a 1.7 degrees Celsius total increase in mean skin temperature. Thermal contour maps revealed the skin was coolest at the anterior proximal location and warmest across the posterior section, correlating with areas of low and high perfusion. From the results, we determined that residual-limb skin temperature depends on activity and locality. This information may aid in understanding where and why skin problems develop on lower-limb residual limbs and may provide design requirements for new prosthetic socket systems intended to alleviate temperature-related discomfort.
下肢假肢的绝缘环境可能会导致残肢皮肤温度升高，这可能会导致皮肤刺激、起泡，并降低生活质量。假肢接受腔、悬吊系统和内衬的设计及材料有可能缓解这些情况，但热负荷可能会因活动及接受腔内的位置而异。为了描述皮肤与假肢界面处的热环境，我们对5名经胫骨截肢者残肢上的14个位置进行了温度测量。参与者穿上假肢并坐姿休息15分钟后，其残肢的平均皮肤温度升高了0.8摄氏度。随后步行10分钟导致平均皮肤温度总共升高了1.7摄氏度。热轮廓图显示，皮肤在近端前部位置最冷，在后部区域最暖，这与低灌注和高灌注区域相关。根据结果，我们确定残肢皮肤温度取决于活动和位置。这些信息可能有助于理解下肢残肢上皮肤问题发生的位置及原因，并可能为旨在缓解与温度相关不适的新型假肢接受腔系统提供设计要求。
