Author(s)

R.T. Hart & A.M. Rust-Dawicki

Abstract

The RFEM3D (Remodeling Finite Element Method — 3-Dimensional) computer program has been modified to allow its use to simulate the gradual straightening of a long bone that has fractured and then healed with a mal- alignment. The simulations using a "signed" quantity to drive the net remodeling process — such as the axial stain — give qualitatively correct results. However, the simulations using strain energy density — always a positive quantity — are unable to simulate the coordinated simultaneous bone addition and resorption that matches the clinically observed net remodeling. Introduction The adaptation of bone shape to its mechanical usage has been a topic u considerable recent interest, and advances in understanding bone's adaptation to mechanical use are expected to result in specific strategies to improve understand

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