Title: Hip contact force in presence of aberrant bone geometry during normal and pathological gait
Authors: Bosmans, Lode ×
Wesseling, Mariska
Desloovere, Kaat
Molenaers, Guy
Scheys, Lennart
Jonkers, Ilse #
Issue Date: Nov-2014
Publisher: Elsevier Science
Series Title: Journal of Orthopaedic Research vol:32 issue:11 pages:1406-15
Article number: 10.1002/jor.22698
Abstract: Children with cerebral palsy (CP) often present aberrant hip geometry, specifically increased femoral anteversion and neck-shaft angle. Furthermore, altered gait patterns are present within this population. We analyzed the effect of aberrant femoral geometry, as present in CP subjects, on hip contact force (HCF) during pathological and normal gait. We ran dynamic simulations of CP-specific and normal gait using two musculoskeletal models (MSMs), one reflecting normal femoral geometry and one reflecting proximal femoral deformities. The combination of aberrant bone geometry and CP-specific gait characteristics reduced HCF compared to normal gait on a CP subject-specific MSM, but drastically changed the orientation of the HCF vector. The HCF was orientated more vertically and anteriorly than compared to HCF orientation during normal gait. Furthermore, subjects with more pronounced bony deformities encountered larger differences in resultant HCF and HCF orientation. When bone deformities were not accounted for in MSMs of pathologic gait, the HCF orientation was more similar to normal children. Thus, our results support a relation between aberrant femoral geometry and joint loading during pathological/normal gait and confirm a compensatory effect of altered gait kinematics on joint loading. © 2014 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res.
ISSN: 0736-0266
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Human Movement Biomechanics Research Group
Research Group for Neuromotor Rehabilitation
Organ Systems (+)
× corresponding author
# (joint) last author

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