Abstract
Background and aim:A recent survey of people with lower limb absence revealed that patients’ satisfaction with their foam cosmesis is lower than desired. The aim of this project was to improve the lifelike appearance, functionality and durability of the cosmesis through a user-centred design methodology.Technique:Concept development and prototyping led to a new cosmesis design which features a cut-out located at the knee, inserted with an artificial patella made of a more rigid foam. It also features a full-length zip which provides easy access for maintenance. The new cosmesis was then mechanically tested for over 1 million cycles and clinically tested by six transfemoral prosthesis users over 18 patient months.Discussion:The new design is significantly more durable than the current standard model and has an enhanced lifelike appearance. It has potential to improve users’ body image and reduce costs for healthcare providers.Clinical relevanceThis study contributes to practice by offering a new cosmesis design with enhanced appearance and durability, with the potential to improve patients’ body image and reduce costs associated with cosmesis fitting and maintenance.
Highlights
Background and aimA recent survey of people with lower limb absence revealed that patients’ satisfaction with their foam cosmesis is lower than desired
Testing and validation demonstrated that the new design had improved durability, lasting up to three times longer than a standard cosmesis design
A more durable cosmesis would reduce the frequency of clinical visits each patient requires
Summary
A recent survey of people with lower limb absence revealed that patients’ satisfaction with their foam cosmesis is lower than desired The aim of this project was to improve the lifelike appearance, functionality and durability of the cosmesis through a user-centred design methodology. Technique: Concept development and prototyping led to a new cosmesis design which features a cut-out located at the knee, inserted with an artificial patella made of a more rigid foam. It features a full-length zip which provides easy access for maintenance. The research adopted a user-centred product design methodology to redesign the foam cosmesis, which places emphasis on the needs of the end user at various stages of the design process.
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