6533b7dcfe1ef96bd1271e31

RESEARCH PRODUCT

Failure Analysis of a Humeral Shaft Locking Compression Plate—Surface Investigation and Simulation by Finite Element Method

Vicentiu SaceleanuFlorin MiculescuBrandusa GhibanDan Ioan StoiaIulian Vasile AntoniacCamelia TecuCosmina Vigaru

subject

Surface (mathematics)Materials scienceFractography02 engineering and technologyFEM simulationlcsh:TechnologyfractographyArticle03 medical and health sciences0302 clinical medicineGeneral Materials Sciencelcsh:Microscopylcsh:QC120-168.85030222 orthopedicsLCP failurelcsh:QH201-278.5business.industrylcsh:TStructural engineering021001 nanoscience & nanotechnologyCompression (physics)Finite element methodlcsh:TA1-2040Humeral shaftFracture (geology)fracture morphologylcsh:Descriptive and experimental mechanicsGallingImplantlcsh:Electrical engineering. Electronics. Nuclear engineering0210 nano-technologybusinesslcsh:Engineering (General). Civil engineering (General)lcsh:TK1-9971

description

A case study of a failed humeral shaft locking compression plate is presented, starting with a clinical case where failure occurred and an implant replacement was required. This study uses finite element method (FEM) in order to determine the failure modes for the clinical case. Four loading scenarios that simulate daily life activities were considered for determining the stress distribution in a humeral shaft locking compression plate (LCP). Referring to the simulation results, the failure analysis was performed on the explant. Using fracture surface investigation methods, stereomicroscopy and scanning electron microscopy (SEM), a mixed mode failure was determined. An initial fatigue failure occurred followed by a sudden failure of the plate implant as a consequence of patient&rsquo

10.3390/ma12071128http://europepmc.org/articles/PMC6479305