Dynamic Pinch Tolerance of the Phalanges and Interphalangeal Joints

Abstract

A value of approximately 35% of the initial dorsal-palmar dimension of the phalanx is reasonably representative of the gap tolerance for all digits and loading sites considered here. Although additional testing is required to quantify variability in tolerance, the tests here indicate that moving surfaces having geometry similar to that considered here would not be expected to injure a digit if the opposing surfaces come no closer together than 35% of the digit's dorsal-palmar dimension.