The Stress Trajectories in the Femur

Aust N Z J Surg. 1972 Feb;38(3):285-291. doi: 10.1111/j.1445-2197.1972.tb05639.x.

Abstract

This article presents a three-dimensional photoelastic technique for the investigation of the internal stresses in bones and joints.

Summary: 1. The value of plastic models for the investigation of the distribution of weightbearing forces in bone has been discussed. 2. The development of internal stresses in loaded plastic models has been investigated. 3. The great value of assessment of stress patterns and trajectories by a frozen photoelastic technique using araldite D is reported. 4. The practical application of these models to the design of prostheses and other implants has been investigated.