Force Analysis of the Thumb

  • David J. Giurintano
  • Anne M. Hollister
Part of the NATO ASI Series book series (NSSA, volume 256)


In this work, the thumb is modeled as a five-link manipulator with the links connected by hinge joints — one for each degree of freedom of the thumb.11 Previous researchers modeled the thumb as three rigid links connected by a spherical joint (carpometacarpal joint), a universal joint (metacarpophalangeal joint), and a hinge joint (interphalangeal joint). Five static positions of hand function are analyzed — key pinch, tip pinch, screwdriver hold, wide grasp, and radial opposition. These positions will be modeled for both a median nerve paralyzed (MNP) and an ulnar nerve paralyzed (UNP) hand with a tendon transfer.


Median Nerve Muscle Force Ulnar Nerve Tendon Transfer Carpometacarpal Joint 


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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • David J. Giurintano
    • 1
  • Anne M. Hollister
    • 1
  1. 1.Paul W. Brand Biomechanics LaboratoryGillis W. Long Hansen’s Disease CenterCarvilleUSA

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