Home > Specialties > Prostheses, Upper Limb, Hook, Mechanical

Prostheses, Upper Limb, Hook, Mechanical

Definition : Hook prostheses operated by mechanical power, usually supplied by other parts of the patient body (i.e., body-powered), and designed for partial functional replacement for a missing hand. These prostheses are typically external devices made of metal (e.g., cobalt-chromium alloys), hard plastics (e.g., polyethylene), carbon fibers, or a combination of materials; they are usually fixed with a socket to the wrist and require some degree of customization. Mechanical hook prostheses may be externally or patient-actuated; in the most common configuration, the hand is operated by cables attached to a harness strapped around the shoulders. Movement of the shoulder operates (e.g., opens, closes) the hand. Mechanical hand prostheses may be used alone as a replacement for a missing hand or as the terminal component of a below-the-elbow, above-the-elbow, or total upper limb prosthesis. They are used mainly in patients who have congenital abnormalities or who suffered amputations due to illness (e.g., diabetes) or traumatic accidents.

Entry Terms : "Hooks, External Limb Component, Mechanical" , "Mechanical Hook Prostheses" , "Mechanical Prostheses" , "Mechanical Prostheses, External Component"

UMDC code : 23368

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BOAS Surgical

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