Validation of patient-specific flatfoot models on finite element analysis

Area of Science:

• Biomechanics
• Orthopedic Surgery
• Medical Imaging

Background:

• Adult-acquired flatfoot leads to various foot deformities.
• Understanding the biomechanical impact is crucial for effective treatment.
• Patient-specific approaches may improve surgical outcomes.

Purpose of the Study:

• To develop patient-specific foot models using the finite element method (FEM).
• To investigate the biomechanics of adult-acquired flatfoot under loading conditions.
• To assess the potential of these models for guiding patient-specific surgical strategies.

Main Methods:

• Creation of nine patient-specific flatfoot models using FEM.
• Performance of loading simulations on the created models.
• Validation of models by comparing weight-bearing radiographs with model parameters (CCC values).

Main Results:

• The developed models accurately reproduced patient foot biomechanics under load.
• Correlation coefficients (CCC) ranged from 0.917 to 0.993, exceeding the moderate threshold.
• The models demonstrated high fidelity in representing individual foot structures and behavior.

Conclusions:

• Patient-specific finite element models can effectively replicate foot biomechanics.
• These validated models show promise for studying and planning patient-specific surgical interventions for adult-acquired flatfoot.
• This methodology offers a potential tool for personalized orthopedic treatment planning.