Artificial limb

Artificial limbs are a type of prosthesis and are classified by the type of amputation they would replace, for example:

Related Topics:
Prosthesis - Amputation

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• Transtibial: Below the knee
• Transfemoral: Above the knee
• Transradial: below the elbow
• Transhumeral: above the elbow

For congenital (from birth) defects the terms are used to refer to the body part that would be amputated. For example if one of the limbs is very short and the foot is at the level of the 'normal' shin then the prosthesis would be described as a transtibial prosthesis even though the Tibia is fully intact.

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Any artificial limb is attached to a persons body, to replace a missing part of the body. They used to be made from wood and certain types of metal, but have now been replaced with more lightweight material such as fibreglass.

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Artificial limbs in the past had no mobility. Then they were replaced with models that had joints and so could be bent (if unnaturally and not automatically) and fixed in different positions for different types of activities (for example, sitting and walking). These, in turn, were replaced with robotic models capable of moving by themselves when controlled by an internal computer or directly by the user. In the past they could be controlled either by other muscles (for example, on the back), but today direct neural control is preferable.

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Artificial limb: Conventional control of powered prosthetic limbs ►