What is a Prosthetic Foot?

Partial foot prostheses, also known as "false half-legs", are used to amputate different parts of the foot due to trauma and disease, including the implementation of the toe, part or all of the toe amputation, the sacroiliac amputation (Sharp-Jage-Bona amputation), Prosthetics of patients with sacroiliac joint dissection (Lisfranc dissection), intersacral joint dissection (Bona-Jager dissection), or transverse sacroiliac dissection (Chopartr dissection).

Partial foot prosthesis

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Part of the foot prosthesis is also called "false half foot", which is used for different parts of the foot due to trauma and disease.

Part of the foot prosthesis is also called "false half foot", which is used for different parts of the foot due to trauma and disease.

Part of the foot prosthesis is roughly divided into four types: foot cover type, shoe type, calf type partial foot prosthesis and decorative toe cover.

Decorative toe sleeve is also called false toe, which is used for patients with partial or full toe amputation. Because patients who have lost their toes can usually walk in ordinary shoes if the soles of the feet are not painful, a fake toe cover made of silicone rubber or polyvinyl chloride resin is molded on the stump for decorative purposes only. .

Foot-covered partial foot prosthesis, also known as foot-covered prosthetic half-foot, is used for patients with sacroiliac amputation or sacroiliac joint dissection. Its role is mainly to fill vacancies. The traditional method is to make a residual foot receiving cavity with leather according to the plaster type, and then glue it with the rubber foot end with a bottom leather pad and a sponge (compensating sacroiliac joint), and open it at the back or side. Fasten tightly. Nowadays, they are mostly made of polyurethane resin, which is not only light and easy to clean, but also has a good appearance, which makes it easier to wear various shoes.

The shoe-type partial foot prosthesis is also called boot-shaped prosthetic half foot, which is a partial foot prosthesis used in conjunction with orthopedic shoes. It is mostly used for patients with sacroiliac amputation, sacroiliac joint dislocation, and foot pain or deformity of the foot. It can also be customized according to the requirements of patients (especially those wearing accustomed leather boots). It differs from ordinary orthopedic shoes in that it needs to compensate for sacroiliac joints; and when it is difficult to step back when walking with this kind of shoes, you can add a boat sole to the sole (wagging palm) Or cheekbones.

The calf partial foot prosthesis is a product that is combined with a calf orthosis or a calf prosthesis. It is mostly used in patients with severe foot loss or amputation with foot deformity. Such as sacroiliac joint dissection, amputation. After such amputations, the heels are often turned inward and backward, and the load-bearing function of the residual limbs is not good (the residual limbs hurt on the ground and the skin is easily broken). In this case, a partial foot prosthesis with a calf orthosis or a calf prosthesis should be selected. The calf orthopedic type has previously used a stent type. The receiving cavity is made of leather, bonded to the forefoot made of rubber as a whole, reinforced with metal braces, and fixed to the calf with a strap. It has the disadvantages of heavy weight and easy atrophy of calf muscles. At present, most of them are made of thermoplastic sheet, such as shoehorn. When the residual limb cannot bear the weight, it is necessary to use the patellar ligament to bear the weight, as in the production of a calf prosthesis. The receiving cavity is opened with a window according to the practice of a sham prosthesis. This partial foot prosthesis can actually be regarded as a special kind of lower limb prosthesis.