Inter-laboratory replicability and sensitivity study of a finite element model to quantify human femur failure load: case of metastases

TL;DR

This study evaluates the reproducibility and sensitivity of a CT-scan-based finite element model for predicting femur failure load in patients with metastases, aiming to improve fracture risk assessment.

Contribution

It provides an inter-laboratory comparison of the finite element model's reproducibility and assesses its sensitivity for clinical fracture risk prediction in metastatic femurs.

Findings

Model shows high reproducibility across laboratories

Finite element predictions correlate with actual failure loads

Method enhances fracture risk assessment accuracy

Abstract

Metastases increase the risk of fracture when affecting the femur. Consequently, clinicians need to know if the patients femur can withstand the stress of daily activities. The current tools used in clinics are not sufficiently precise. A new method, the CT-scan-based finite element analysis, gives good predictive results. However, none of the existing models were tested for reproducibility. This is a critical issue to address in order to apply the technique on a large cohort around the world to help evaluate bone metastatic fracture risk in patients. Please see pdf file