Fixation of a split fracture of the lateral tibial plateau with a locking screw plate instead of cannulated screws would allow early weight bearing: a computational exploration

International Orthopaedics
Ion CarreraJerome Noailly

Abstract

To assess, with finite element (FE) calculations, whether immediate weight bearing would be possible after surgical stabilization either with cannulated screws or with a locking plate in a split fracture of the lateral tibial plateau (LTP). A split fracture of the LTP was recreated in a FE model of a human tibia. A three-dimensional FE model geometry of a human femur-tibia system was obtained from the VAKHUM project database, and was built from CT images from a subject with normal bone morphologies and normal alignment. The mesh of the tibia was reconverted into a geometry of NURBS surfaces. A split fracture of the lateral tibial plateau was reproduced by using geometrical data from patient radiographs. A locking screw plate (LP) and a cannulated screw (CS) systems were modelled to virtually reduce the fracture and 80 kg static body-weight was simulated. While the simulated body-weight led to clinically acceptable interfragmentary motion, possible traumatic bone shear stresses were predicted nearby the cannulated screws. With a maximum estimation of about 1.7 MPa maximum bone shear stresses, the Polyax system might ensure more reasonable safety margins. Split fractures of the LTP fixed either with locking screw plate or cannula...Continue Reading

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Citations

Jun 21, 2017·EFORT Open Reviews·Michael J RaschkeChristoph Domnick
Apr 11, 2018·European Journal of Orthopaedic Surgery & Traumatology : Orthopédie Traumatologie·I B HoubenT J Blokhuis
May 8, 2020·European Journal of Trauma and Emergency Surgery : Official Publication of the European Trauma Society·Anil Murat OzturkKemal Aktuglu
Apr 14, 2017·International Orthopaedics·Angélica Millán-BilliPablo Eduardo Gelber
Mar 4, 2017·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Ion CarreraJerome Noailly
Jun 11, 2020·Revista do Colégio Brasileiro de Cirurgiões·Vincenzo GiordanoHilton Augusto Koch
Nov 3, 2020·SAGE Open Medicine·Efthymios Iliopoulos, Nikiforos Galanis
Sep 27, 2020·Medical Engineering & Physics·Shabnam SamsamiPeter Augat
May 13, 2021·Orthopaedic Surgery·Zhong-Yu LiuYang Chen
Jun 15, 2021·Frontiers in Bioengineering and Biotechnology·Meike GierigDominik Saul

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