An “apropriate technology” trans-femoral prosthesis, using materials available in Nepal

Meanley, S.; Reed, N. K.

doi:10.3109/03093649809164473

Cited by 8 publications

(6 citation statements)

References 7 publications

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“…They should be functional, affordable, durable, easy to fabricate and repair, adaptable to local materials, and culturally acceptable. [25][26][27][28] An adjustable, temporary, femoral socket prosthesis has been described in the literature and was claimed to be cost-effective. 29 Various foot designs have been evaluated in field contexts and in laboratory settings.…”

Section: Prostheses and Orthosesmentioning

confidence: 99%

Assistive technology in developing countries

Borg

Lindström

Larsson

2011

Prosthetics &Amp; Orthotics International

131

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Background: The ‘Convention on the Rights of Persons with Disabilities’ (CRPD) requires governments to meet the assistive technology needs of citizens. However, the access to assistive technology in developing countries is severely limited, which is aggravated by a lack of related services.Objectives: To summarize current knowledge on assistive technology for low- and lower-middle-income countries published in 1995 or later, and to provide recommendations that facilitate implementation of the CRPD.Study design: Literature review.Methods: Literature was searched in web-based databases and reference lists. Studies carried out in low- and lower-middle-income countries, or addressing assistive technology for such countries, were included.Results: The 52 included articles are dominated by product oriented research on leg prostheses and manual wheelchairs. Less has been published on hearing aids and virtually nothing on the broad range of other types of assistive technology.Conclusions: To support effective implementation of the CRPD in these countries, there is a need for actions and research related particularly to policies, service delivery, outcomes and international cooperation, but also to product development and production.Clinical relevanceThe article has a potential to contribute to CRPD compliant developments in the provision of assistive technology in developing countries by providing practitioners with an overview of published knowledge and researchers with identified research needs.

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Section: Prostheses and Orthosesmentioning

confidence: 99%

Assistive technology in developing countries

Borg

Lindström

Larsson

2011

Prosthetics &Amp; Orthotics International

131

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“…The primary function of a prosthetic knee joint is to provide articulation and allow knee flexion in swing-phase, and to resist flexion during weight bearing. 29 The technologically simplest and most commonly used mechanism is a single-axis hinge joint 18,29,40,41,48,49 (see Table III). In this system, aligning the prosthesis such that the knee axis is posterior of the weight-bearing line along with voluntary control of the residuum hip muscles provides some resistance to knee flexion.…”

Section: Prosthetic Kneesmentioning

confidence: 99%

Lower-Limb Prosthetic Technologies in the Developing World

Andrysek

2010

Prosthetics &Amp; Orthotics International

122

111

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In the mid-1990s, a number of key publications and meetings of experts identified major technical issues associated with prosthetic technologies intended for developing countries. These included inadequate durability of prosthetic feet, poor socket quality and prosthetic fit, improper alignment of prostheses, and inferior function of components. To examine the progress that has been made since then in addressing these issues, a comprehensive review of literature was performed. In total, 106 articles were selected and included in the review. The review examined prosthetic technologies categorized into feet and ankles, knees, sockets and suspension, and materials, structures, and alignment methods. Moreover, publications were categorized as technical development, clinical (lab-based) testing, or clinical field testing studies. The results reveal important work that has been carried out to develop and implement standardized outcome measures during field testing, allowing various existing prosthetic technologies to be evaluated in terms of their use, function, durability, and other factors. Progress has also been made toward addressing the aforementioned limitations of prosthetic technologies, however, more research and development is required. This includes improving the durability of the external cosmetic features of prosthetic feet, developing more functional prosthetic knee joints, and simplifying fabrication techniques to further improve outcomes associated with socket fit and prosthetic alignment. Research and development collaborations between developed and developing countries, and the dissemination of ongoing research, development, and evaluation activities are essential to the advancement of prosthetic technologies in these regions.

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“…Paediatric prosthetic solutions in developing countries have been biased towards materials that can be locally sourced and that require short training periods for local technicians for fast fabrication and fitments. [1][2][3][4][5] In particular, plastic materials have been favoured for their wide availability. However, their low strength presents structural issues.…”

Section: Paediatric Prosthetic Materials In the Developing Worldmentioning

confidence: 99%

Optimal material selection for the construction of a paediatric prosthetic knee

Mangera

Kienhöfer

Carlson

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part L:

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The material selection of prostheses in developing countries is currently biased towards what is readily available and ignores important criteria such as patient comfort and structural strength. In this study, the ELECTRE III multiple attribute decision-making method was applied to the material selection of a paediatric prosthetic knee. Light metals were considered as candidates for selection. While composites are light, they are not suitable for use in components with sliding and mating surfaces such as a prosthetic knee. Plastics are prone to failure. Candidate materials were evaluated on criteria related to patient fatigue and comfort, structural stability and material cost. The patient fatigue and comfort requirement was evaluated using material density as the weight of the prosthesis affects the comfort level. Finite element analyses simulating the ISO 10328:2006 standard for structural testing of lower limb prostheses were used to evaluate the structural strength suitability of the candidate materials. The present day prices of the raw material of the candidates were used as an index of material cost. Wrought aluminium alloy aluminium 7175 was ranked highest while titanium alloys were ranked below these due to their higher cost. Cast aluminium alloys ranked lowest due to their poor structural performance. The study, using ELECTRE III, a rigorous multi-criteria decision analysis method, shows that aluminium 7175 is the optimal light metal material for a paediatric prosthetic knee.

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An “apropriate technology” trans-femoral prosthesis, using materials available in Nepal

Cited by 8 publications

References 7 publications

Assistive technology in developing countries

Assistive technology in developing countries

Lower-Limb Prosthetic Technologies in the Developing World

Optimal material selection for the construction of a paediatric prosthetic knee

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