The Gait Pattern and Not the Femoral Morphology is the Main Contributor to Asymmetric Hip Joint Loading

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2023 Sep 26

PMID 37751435

Authors

Willi Koller

Arnold Baca

Hans Kainz

Affiliations

Soon will be listed here.

Abstract

Gait asymmetry and skeletal deformities are common in many children with cerebral palsy (CP). Changes of the hip joint loading, i.e. hip joint contact force (HJCF), can lead to pathological femoral growth. A child's gait pattern and femoral morphology affect HJCFs. The twofold aim of this study was to (1) evaluate if the asymmetry in HJCFs is higher in children with CP compared to typically developing (TD) children and (2) identify if the bony morphology or the subject-specific gait pattern is the main contributor to asymmetric HJCFs. Magnetic resonance images (MRI) and three-dimensional gait analysis data of twelve children with CP and fifteen TD children were used to create subject-specific musculoskeletal models and calculate HJCF using OpenSim. Root-mean-square-differences between left and right HJCF magnitude and orientation were computed and compared between participant groups (CP versus TD). Additionally, the influence on HJCF asymmetries solely due to the femoral morphology and solely due to the gait pattern was quantified. Our findings demonstrate that the gait pattern is the main contributor to asymmetric HJCFs in CP and TD children. Children with CP have higher HJCF asymmetries which is probably the result of larger asymmetries in their gait pattern compared to TD children. The gained insights from our study highlight that clinical interventions should focus on normalizing the gait pattern and therefore the hip joint loading to avoid the development of femoral deformities.

Citing Articles

A framework based on subject-specific musculoskeletal models and Monte Carlo simulations to personalize muscle coordination retraining.

Kainz H, Koller W, Wallnofer E, Bader T, Mindler G, Kranzl A Sci Rep. 2024; 14(1):3567.

PMID: 38347085 PMC: 10861532. DOI: 10.1038/s41598-024-53857-9.

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