Effects of Different Heel Heights on Heel Pressure Distribution for Calcaneal Spur Patients During Standing: Finite Element Analysis

Dwi Basuki Wibowo,Achmad Widodo,Agus Suprihanto,Gunawan Dwi Haryadi

doi:10.1051/matecconf/201815902033

Abstract

This study was performed to investigate heel height shoe for every patient which peak pressure in the heel area is lower than pain minimum compressive pressure. Heel heights of the shoes are standardized as 0-4 cm. Sixteen patients with symptomatic heel spur participated in this study. Peak pressure due to its own weight is estimated using FEM and compared with the results of measurement using FSR (force sensing resistor). As heel height increased, peak pressure in heel region in the heel height 2 cm, 3 cm and 4 cm are larger 3.86% and smaller 5.04% and 22.11% respectively compared to the smallest pain compressive pressure. These peak pressures are significantly higher than the average pressure in CH (center of heel) measurement results due to the difference in the location of peak pressure to CH at average of 8.64 ± 1.44 mm.

Highlights

The pain in patients with calcaneus spur when standing or walking due to the pressure distribution on the calcaneus region large enough
The average pressure in center of heel (CH) obtained by measurements is 142490.53 N/m2, 33010.04 N/m2, 21764.39 N/m2 and 21434.76 N/m2 for heel height 0 cm, 2 cm, 3 cm, and 4 cm respectively
The average peak pressure values are significantly higher than the average pressure in the CH measurement results amounted to 16.34%, 69.51%, 78.03%, and 74.85% for heel height 0 cm, 2 cm, 3 cm and 4 cm respectively

Summary

Introduction

The pain in patients with calcaneus spur when standing or walking due to the pressure distribution on the calcaneus region large enough. To reduce pressure using orthotic shoe can be done by raising heel height shoe [3,4,5]. Many researchers have been used FEM (finite element method) as an experimental approach to predicting the pressure distribution between the foot and different shoe insole, which offer additional information such as the maximum pressure and its location in heel region [7,8].

Methods

Results

Discussion

Conclusion