Contact Mechanics Modeling of the Semmes-Weinstein Monofilament on the Plantar Surface of the Foot

Abstract

Neuropathy is a disease which results in the loss of sensation in the extremities. One method for assessing the degree of neuropathy is with a monofilament evaluator which buckles at a prescribed force depending on the filament diameter. However, as this assessment is conducted by the clinician's hand, the true force delivered is unknown. Therefore, the purpose of this study was to model the effects of both insertion depth and monofilament diameter on the contact force and normal stress produced on the plantar surface of the foot.