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Wrist Disarticulation



- Discussion:
    - wrist disarticulation: include the removal of the radius and ulna to styloid processes;
    - shape of stump remains bulbous, thus permitting prosthetic attachment, leaving the elbow free and preserving full pronation & supination;
    - wrist disarticulation retains distal radio-ulnar joint preserves more forearm rotation, & retaining distal radial flare dramatically improves 
         prosthetic suspension;
    - there is no benefit to retaining carpal bones;
    - tenodesis of major forearm motors stabilizes muscle units, improving physiologic and myoelectric performance;
    - conventional wrist units generally are not used because of additional length these add to the prosthetic arm, and, occasionally, terminal
         device must be modified because of length;
    - wrist disarticulation is also harder to fit with a myoelectric prosthesis because less space is available in which to conceal electronics and 
         power supply



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