<br />Prosthetic devices are used to replace parts of the body lost to injury, disease, or disorder. Prosthetics<br />aims to allow users to lead a normal life with as little loss of mobility as possible. They not only improve<br />bodily functions like walking, running, and gripping but also enhance a person's psychological well-being<br />by helping them regain an aesthetic appearance and their self-esteem. Using mechatronic engineering, a<br />limb replacement can be made according to a patient's physiological needs and lifestyle requirements. It is<br />also possible to provide replacements with added artificial features, such as strength or sensory feedback.<br />Historically, prosthetic limbs were developed more than 3,000 years ago. However, prosthetics as we<br />know them came into existence in the mid-20th century, and the technology has slowly evolved.<br />Traditional prosthetics primarily served to help individuals walk by mechanically replicating the<br />functions of the replaced limb. Most prosthetics available today are still based on this basic setup. Smart<br />prosthetics, however, aim to improve the quality of life further by providing active support during<br />mobility as add-ons . User-centered design determines the goals of an intelligent human-centered<br />prosthetic device. Instrumented prosthetic feet and knees, which can adjust to changes in terrain or<br />walking speed, have been a stepping stone for intelligent prosthetic development. New sensors and digital<br />tools have enabled the prostheses to 'listen' and 'understand' through pattern recognition and offer<br />sophisticated control for individual leg movement. The results are promising, with the new ankle and<br />knee mechanisms offering more natural walking patterns and enhanced stability. It is also very possible to<br />integrate artificial intelligence so that the user has to think less about coordinating with the prosthesis,<br />making life even easier. The concept is seen as a technological breakthrough, especially for individuals<br />who have had a lower-limb amputation, but the challenges brought by the development of devices that<br />span different environments and the agility of the human body are very complex