Introduction: Losing a limb is a very stressful event. The person has to get used to their changed appearance and adjust that way of life. Amputations can occur in accidents, surgical procedures, or congenital limb absence. Upper limb amputations are categorized by the stage at which they occurred. Myoelectric upper limb prostheses are designed to restore as much function as possible to the amputated arm and powered by an external energy source. Purpose: The aim of this thesis is to present myoelectric upper limb prostheses and their performance, as well as the available products on the market based on reviews of professional and scientific literature. Methods: In the first part of the thesis, we carried out a review of professional and scientific literature. In the second part, a review of the products available on the market. We used the following search strings: type of using myoelectric prostheses OR muscles for myoelectric prosthesis in upper limb AND myoelectric prosthesis in upper limb AND NOT lower limb; and ''myoelectric prosthesis''. Results: After the literature review, we have included ten articles. In the tables we present basic data of the subjects included in the studies on myoelectric prostheses, the characteristics of included studies on myoelectric prostheses and the characteristics of included studies on targeted muscle reinnervation. The search string 'myoelectric prosthesis' returned around 504,000 results. We determined that there is a large variety of products on the market. Discussion and conclusion: Research on myoelectric prostheses included seven papers. All of them present innovative approaches to improving functionality and usability of prostheses. Three papers were included in the research on targeted muscle reinnervation. All of them show good results, but in our opinion they are still in the research phase. All the products available on the market are well described, but there are key points missing in order to be able to compare the products fully. Myoelectric upper limb prostheses represent an advanced and innovative solution for people who have lost or been born without or a part of an upper limb. They represent a future with the possibility of research into functionality.
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