Although not all are discussed in this Fact Sheet, the following are definitions of terms you may hear when discussing various types of prostheses, fitting needs and activity requirements with your prosthetist and physician. This knowledge may help you choose which type of prosthesis is the most appropriate for you and your daily activities and needs. Never hesitate to ask for clarification from your prosthetist or physician if you do not understand something they say. You are an important part of your medical team. Balaramakrishnan, T. M., Natarajan, S., & Sujatha, S. (2020). Design of a Biomimetic SACH Foot: An Experimentally Verified Finite Element Approach. In journal of biomimetics, biomaterials and biomedical engineering (Vol. 45, pp. 22–30). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/JBBBE.45.22 To pinpoint an ideal foot shape, the group ran a “genetic algorithm” — a common technique used to weed out unfavorable options, in search of the most optimal designs.

The most basic prosthetic feet come in two types: Solid Ankle Cushioned Heel (SACH) and Elastic Keel configurations. These designs consist of crepe neoprene or urethane foam molded over an inner keel and shaped to resemble a human foot. Because they have no hinged parts, these basic feet are relatively inexpensive, durable and virtually maintenance-free. These feet offer cushioning and energy absorption but do not store and return the same amount of energy as dynamic-response feet. SACH and elastic keel feet are generally prescribed for amputees who do a limited amount of walking with little variation in speed. The inner layer is made of a soft silica gel material, this creates a realistic look and feel, and although you can’t create a pose for the toes because the feet have no bones to support that, the mannequin is still a good option for impressively displaying your merchandise.ISO 10328:2016 - Prosthetics — Structural testing of lower-limb prostheses — Requirements and test methods”, 2016. https://www.iso.org/standard/70205.html It features two layers, the outer layer is made of high-quality and anti-tear thermoplastic elastomer, which makes the silicone feet not only durable but also gives it a lifelike softness and look. First and foremost, no need to worry–we are gentle and nothing we do is painful. We custom-make each toe prosthesis in our own laboratory ensuring high quality and individual design. The process requires 4 to 5 appointments which involve these steps:

The organization asked Winter whether he could design a better, lighter foot that could be mass-produced at low cost. Can be used for regular prosthetic treatment of the majority of amputees, in particular for TF amputees. It has all the characteristics of female feet, thus it’s soft, however, it also feels and looks very much like a beautiful girl’s feet. Cai C, Tey WS, Chen J, Zhu W, Liu X, Liu T, Zhao L, Zhou K (2021) Comparative study on 3D printing of polyamide 12 by selective laser sintering and multi jet fusion. J Mater Process Technol 288:116882. https://doi.org/10.1016/j.jmatprotec.2020.116882Rajput S, Burde H, Singh US, Kajaria H, Bhagchandani RK (2021) Optimization of prosthetic leg using generative design and compliant mechanism. Mater Today: Proceed 46:8708–8715. https://doi.org/10.1016/j.matpr.2021.04.026 Not only is this proof of function of a GAN modeling system, but it has that sociological twist that encourages curiosity. Foot pictures are harmless, or they are dirty, dirty, dirty. It completely depends on your own personal bias and point of view. Some people hate their feet, some people put feet in their mouths. Some people don't regard them much at all. They’ve been making this foot for over 40 years, and it’s rugged, so farmers can use it barefoot outdoors, and it’s relatively life-like, so if people go in a mosque and want to pray barefoot, they’re likely to not be stigmatized,” Winter says. “But it’s quite heavy, and the internal structure is made all by hand, which creates a big variation in product quality.” Can be used for regular prosthetic treatment of the majority of amputees and/or the initial fitting before proceeding to more sophisticated foot design” – you may want to refer to “preparatory prosthesis” rather than initial fitting. At least, in US that is the terminology. Also SACH can be used for the majority of amputees but it is no longer the standard of care. It’s really more for lower active individuals