Analysis of Contact Pressure at Knee Cartilage during Gait with Respect to Foot Progression Angle

Jeongro Yoon, Sungpil Ha, Seungju Lee, Soo Won Chae

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

One of the main causes that make knee osteoarthritis (OA) worse is load concentration at the medial compartment of knee cartilage. It is alternatively measured by employing knee adduction moment (KAM). Since toe-in gait decreases the 1st peak of KAM, it has been considered as a non-surgical prevention of OA progressing. However, direct measures such as contact pressure at knee cartilage in motion have not been available so far. Obtaining contact pressure at knee cartilage by FE analysis is difficult because exact muscle forces are not available and because FE model should be reconstructed at every stance phase. To obtain contact pressure at knee cartilage during gait, a method employing FE analysis based on motion analysis has been used in this study. Reference FE model of lower extremities was constructed and transformed to specific stance phases of gait. Ground reaction forces and muscle forces from motion analysis were employed as loading conditions. Finally, contact pressure distributions on knee cartilage at 1st peak, mid stance, 2nd peak could be obtained with respect to foot progression angle. The result shows that toe-in gait could be effective for knee OA patients by dispersing contact pressure concentrated in medial knee compartment to lateral part.

Original languageEnglish
Pages (from-to)761-766
Number of pages6
JournalInternational Journal of Precision Engineering and Manufacturing
Volume19
Issue number5
DOIs
Publication statusPublished - 2018 May 1

Fingerprint

Cartilage
Muscle
Pressure distribution
Motion analysis

Keywords

  • Finite element analysis
  • Foot progression angle
  • Knee cartilage
  • Motion analysis
  • Toe-in gait

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

Analysis of Contact Pressure at Knee Cartilage during Gait with Respect to Foot Progression Angle. / Yoon, Jeongro; Ha, Sungpil; Lee, Seungju; Chae, Soo Won.

In: International Journal of Precision Engineering and Manufacturing, Vol. 19, No. 5, 01.05.2018, p. 761-766.

Research output: Contribution to journalArticle

@article{a347799547c04d82ab8afba8ac9a2d69,
title = "Analysis of Contact Pressure at Knee Cartilage during Gait with Respect to Foot Progression Angle",
abstract = "One of the main causes that make knee osteoarthritis (OA) worse is load concentration at the medial compartment of knee cartilage. It is alternatively measured by employing knee adduction moment (KAM). Since toe-in gait decreases the 1st peak of KAM, it has been considered as a non-surgical prevention of OA progressing. However, direct measures such as contact pressure at knee cartilage in motion have not been available so far. Obtaining contact pressure at knee cartilage by FE analysis is difficult because exact muscle forces are not available and because FE model should be reconstructed at every stance phase. To obtain contact pressure at knee cartilage during gait, a method employing FE analysis based on motion analysis has been used in this study. Reference FE model of lower extremities was constructed and transformed to specific stance phases of gait. Ground reaction forces and muscle forces from motion analysis were employed as loading conditions. Finally, contact pressure distributions on knee cartilage at 1st peak, mid stance, 2nd peak could be obtained with respect to foot progression angle. The result shows that toe-in gait could be effective for knee OA patients by dispersing contact pressure concentrated in medial knee compartment to lateral part.",
keywords = "Finite element analysis, Foot progression angle, Knee cartilage, Motion analysis, Toe-in gait",
author = "Jeongro Yoon and Sungpil Ha and Seungju Lee and Chae, {Soo Won}",
year = "2018",
month = "5",
day = "1",
doi = "10.1007/s12541-018-0091-2",
language = "English",
volume = "19",
pages = "761--766",
journal = "International Journal of Precision Engineering and Manufacturing",
issn = "1229-8557",
publisher = "Korean Society of Precision Engineering",
number = "5",

}

TY - JOUR

T1 - Analysis of Contact Pressure at Knee Cartilage during Gait with Respect to Foot Progression Angle

AU - Yoon, Jeongro

AU - Ha, Sungpil

AU - Lee, Seungju

AU - Chae, Soo Won

PY - 2018/5/1

Y1 - 2018/5/1

N2 - One of the main causes that make knee osteoarthritis (OA) worse is load concentration at the medial compartment of knee cartilage. It is alternatively measured by employing knee adduction moment (KAM). Since toe-in gait decreases the 1st peak of KAM, it has been considered as a non-surgical prevention of OA progressing. However, direct measures such as contact pressure at knee cartilage in motion have not been available so far. Obtaining contact pressure at knee cartilage by FE analysis is difficult because exact muscle forces are not available and because FE model should be reconstructed at every stance phase. To obtain contact pressure at knee cartilage during gait, a method employing FE analysis based on motion analysis has been used in this study. Reference FE model of lower extremities was constructed and transformed to specific stance phases of gait. Ground reaction forces and muscle forces from motion analysis were employed as loading conditions. Finally, contact pressure distributions on knee cartilage at 1st peak, mid stance, 2nd peak could be obtained with respect to foot progression angle. The result shows that toe-in gait could be effective for knee OA patients by dispersing contact pressure concentrated in medial knee compartment to lateral part.

AB - One of the main causes that make knee osteoarthritis (OA) worse is load concentration at the medial compartment of knee cartilage. It is alternatively measured by employing knee adduction moment (KAM). Since toe-in gait decreases the 1st peak of KAM, it has been considered as a non-surgical prevention of OA progressing. However, direct measures such as contact pressure at knee cartilage in motion have not been available so far. Obtaining contact pressure at knee cartilage by FE analysis is difficult because exact muscle forces are not available and because FE model should be reconstructed at every stance phase. To obtain contact pressure at knee cartilage during gait, a method employing FE analysis based on motion analysis has been used in this study. Reference FE model of lower extremities was constructed and transformed to specific stance phases of gait. Ground reaction forces and muscle forces from motion analysis were employed as loading conditions. Finally, contact pressure distributions on knee cartilage at 1st peak, mid stance, 2nd peak could be obtained with respect to foot progression angle. The result shows that toe-in gait could be effective for knee OA patients by dispersing contact pressure concentrated in medial knee compartment to lateral part.

KW - Finite element analysis

KW - Foot progression angle

KW - Knee cartilage

KW - Motion analysis

KW - Toe-in gait

UR - http://www.scopus.com/inward/record.url?scp=85047222953&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85047222953&partnerID=8YFLogxK

U2 - 10.1007/s12541-018-0091-2

DO - 10.1007/s12541-018-0091-2

M3 - Article

AN - SCOPUS:85047222953

VL - 19

SP - 761

EP - 766

JO - International Journal of Precision Engineering and Manufacturing

JF - International Journal of Precision Engineering and Manufacturing

SN - 1229-8557

IS - 5

ER -