In dynamic as well as in free finger movements, anatomically determined interdependencies ensure the "internal stability" of the normal finger arch

Abstract

SUMMARY

The normal free-moving finger is characterized by a stable finger arch throughout the range of flexion and extension. This stability is based on D.I.P. - P.I.P. - flexion interdependencies that are purely anatomically and biomechanically defined. Some of these defining anatomical structures and kinematic mechanisms were reviewed in detail. Comparative-anatomical aspects, and the introduction of a practical application in the field of ergonomics conclude this review.