Document Detail

The effect of leg fracture level and vehicle front-end geometry on pedestrian knee injury and response.
MedLine Citation:
PMID:  17236519     Owner:  NLM     Status:  MEDLINE    
In this study a MADYMO (mathematical dynamic modelling) model has been used to identify the influence of leg fracture on the injuries sustained by the pedestrian during front end impact with a vehicle. A factorial study of a MADYMO pedestrian and vehicle model are used to investigate the effect of different leg fracture tolerances, geometry, and vehicle compliance on the criteria measured in the European Enhanced Vehicle-safety Committee (EEVC) pedestrian safety tests. These criteria include knee bending, knee shear response, and lower leg bone (tibia) acceleration. The main study examines the spread of typical values of lower limb tolerance based on reported literature and contrasts the response of weaker, low-strength bones, normal tolerance, and limbs which do not fracture. Results show that knee bending angles and therefore ligament strains are significantly increased when fracture does not occur, and are decreased in bones exhibiting a low-strength response. Bone fracture tolerance is shown to be a significant parameter influencing knee bending. The parameters are compared to show that knee shear is significantly influenced by vehicle bumper compliance and that both criteria are heavily influenced by bumper height. Vehicles with more aggressive geometry, higher bumpers, and larger bumper lead were considered for comparative purposes.
M C Dunmore; R Brooks; N J Madeley; D S McNally
Related Documents :
17103179 - Calcaneal insufficiency fracture in a child with osteosarcoma after chemotherapy and li...
9404469 - Defining radiographic osteoarthritis for the whole knee.
14651079 - Non perforated septum supra-patellaris mimicking a soft tissue tumour.
17159169 - Simultaneous in vitro measurement of patellofemoral kinematics and forces following oxf...
7559699 - Medial physeal stapling for primary and secondary genu valgum in late childhood and ado...
10587149 - External validation of the ottawa knee rules in an urban trauma center in the united st...
11143919 - Concomitant sickle cell disease and skeletal fluorosis.
15603819 - A two year in vivo study of polyvinyl alcohol-hydrogel (pva-h) artificial meniscus.
1274679 - Morphological aspects and biomechanical properties of the vertebroaxial joint (c2-c3).
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine     Volume:  220     ISSN:  0954-4119     ISO Abbreviation:  Proc Inst Mech Eng H     Publication Date:  2006 Nov 
Date Detail:
Created Date:  2007-01-22     Completed Date:  2007-02-22     Revised Date:  2009-06-08    
Medline Journal Info:
Nlm Unique ID:  8908934     Medline TA:  Proc Inst Mech Eng H     Country:  England    
Other Details:
Languages:  eng     Pagination:  857-69     Citation Subset:  IM    
School of Mechanical, Materials, and Manufacturing Engineering, University of Nottingham, Nottingham, UK.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Accidents, Traffic*
Computer Simulation
Fractures, Bone / etiology*,  physiopathology*
Knee Joint / physiopathology*
Leg Injuries / etiology*,  physiopathology*
Models, Biological
Risk Assessment
Risk Factors
Tibial Fractures / etiology,  physiopathology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Design, validation, and utilization of an articular cartilage impact instrument.
Next Document:  A finite element method comparison of wear in two metal-on-metal total hip prostheses.