The first type is suitable only as a cosmetic limb replacement and performs a limited number of functions. The second type – are a transitional option between fully functional prostheses and cosmetic prostheses, they allow, for example, walking. Working prosthetic hands are equipped with removable hands for replacement with various tools and devices depending on the type of activity.
Traction prostheses can be controlled by the user’s muscle strength, which is transmitted to a complex system of rods. They are much more functional than the previous types, but have peculiarities when used in pediatric prosthetics because children’s muscles are usually not yet sufficiently developed. Such a prosthesis requires some time to master, but allows you to return to almost the same level of activity.
However, active traction prostheses are considered to be the most suitable for children aged 2 to 10 years due to their light weight and cost with a wide range of functions. With such a prosthesis, the child remains active, which is extremely important for the formation of a healthy foundation for future life. He or she does not feel the disability and is not ashamed of it, which is also important for the process of normal socialization and communication with peers. A traction prosthesis can also be considered as a training prosthesis before the subsequent installation of a bionic prosthesis.
Traction prostheses for children have a modular system, which makes it possible to partially compensate for the child’s growth by changing the length of individual joints. Modular prostheses are assembled from individual standard parts, the length of which can be changed depending on the height and proportions of the user, which is very suitable for pediatric prosthetics.
Bionic prostheses due to their rather high cost, it is better to install them after the end of the active growth phase, although they can be installed after reaching 10-12 years of age. The bionic prosthesis has servo drives that are activated and controlled by nerve impulses transmitted to special sensors. Mastering such a prosthesis also takes time, but they provide the maximum level of comfort.