Ali S, Osman N A, Razak A, Hussain S, Wan Abas W A
Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia -
Eur J Phys Rehabil Med. 2015 Feb;51(1):31-7. Epub 2014 Jun 19.
Lower limb amputee's are greatly affected in dealing with the environmental barriers such as ramps and stairs and reported high interface pressure between the residual limb and socket/liner. Interface pressure between the residual limb and socket/liner can affect the satisfaction and use of the prosthesis. Until now, little attention has been paid to interface pressure between socket and stump during ramp negotiation and its effect on amputee's satisfaction.
The aim of this study was to evaluate the interface pressure produced by two different liners (Seal-In X5 and Dermo) between the residual limb and socket, and their effects on amputee's satisfaction during ramp negotiation.
Observational study.
The study was performed in rehabilitation and biomedical departments of University Malaya Medical Centre.
Total ten (7 male, 3 female) transtibial amputees with unilateral amputation were included.
Two prostheses were fabricated for each amputee. After four weeks of acclimation period, interface pressure between socket and residual limb was measured during walking on ramp and Prosthetic Evaluation Questionnaire (PEQ) was filled for each liner.
Mean peak pressure was significantly (P<0.05) lower with the Dermo liner compared with the Seal-In X5 liner in ramp walking. In addition, the participants were more satisfied with the Dermo liner (83.50 vs. 71.50) and mentioned fewer problems (87.00 vs. 69.00) compared with the Seal-In X5 liner during ramp negotiation.
It might be concluded that Dermo liner could be a good choice for the transtibial level of amputation due to relative decrease in interface pressure, satisfaction and fewer problems.
The advantages of the Dermo liner may improve clinical rehabilitation of transtibial amputee's, as it provides more satisfaction and experienced fewer problems during ramp negotiation. This provides an improved walking and better quality of life in long term.
下肢截肢者在应对诸如坡道和楼梯等环境障碍时受到极大影响，并且报告称残肢与接受腔/内衬之间的界面压力较高。残肢与接受腔/内衬之间的界面压力会影响假肢的满意度和使用情况。到目前为止，在坡道行走过程中接受腔与残端之间的界面压力及其对截肢者满意度的影响很少受到关注。
本研究的目的是评估两种不同内衬（Seal-In X5和Dermo）在残肢与接受腔之间产生的界面压力，以及它们在坡道行走过程中对截肢者满意度的影响。
观察性研究。
该研究在马来亚大学医学中心的康复和生物医学部门进行。
共纳入十名（7名男性，3名女性）单侧经胫骨截肢的截肢者。
为每位截肢者制作了两个假肢。经过四周的适应期后，在坡道行走过程中测量接受腔与残肢之间的界面压力，并为每个内衬填写假肢评估问卷（PEQ）。
在坡道行走中，与Seal-In X5内衬相比，Dermo内衬的平均峰值压力显著更低（P<0.05）。此外，与Seal-In X5内衬相比，参与者对Dermo内衬更满意（83.50对71.50），并且在坡道行走过程中提到的问题更少（87.00对69.00）。
可以得出结论，由于界面压力相对降低、满意度更高且问题更少，Dermo内衬可能是经胫骨截肢水平的一个不错选择。
Dermo内衬的优势可能会改善经胫骨截肢者的临床康复，因为它在坡道行走过程中提供了更高的满意度且遇到的问题更少。这从长期来看能改善行走能力并提高生活质量。
