小腿假肢接受腔的三维有限元分析

通过建立三维非线性有限元模型来分析小腿假肢接受腔与残肢之间的载荷分布。此模型基于残肢,骨头,软套和接受腔的三维几何形状,考虑界面摩擦滑动条件和软组织的大变形等非线性因素。模型可以预测不同外载下残肢和接受腔之间的压力,剪切力和相对滑动情况。并分析了不同的接受腔形状对载荷分布的影响。     

Conducting an advance care planning group among older adults living in residential care homes: An initiative of social workers in Hong Kong

This study aimed to examine the effects of an advance care planning (ACP) group which was developed by social workers in Hong Kong for older adults. A quasi-experimental study was conducted. Participants were recruited from 14 residential care homes. The ACP intervention group included 59 participants for analyses, and the control group 58. Three major outcomes were measured at two time points: (a) Quality-of-life concerns, (b) End-of-life preference and (c) Advance directive (AD)-related outcomes (awareness of AD, AD completion, willingness to complete AD and communication with family members about AD). Findings indicate that the ACP group enhanced participants’ awareness of AD compared with the control group. Participants were also more willing to complete AD, and more participants communicated with family members about AD after participating in the ACP group. No significant difference was found in other outcomes. This study demonstrates the efforts of social workers in promoting ACP in Hong Kong and the effectiveness of an ACP group for enhancing older adults’ awareness of AD. Findings support the role of social workers in promoting ACP for deprived groups, like frail older adults. The ACP group could be considered a first step in enhancing older adults’ awareness of and willingness to discuss end-of-life issues. Further follow-up is required to develop individualised ACP for older adults.