Finite element analysis of different repair methods of Vancouver B1 periprosthetic fractures after total hip arthroplasty

Injury
Dave W ChenMel S Lee

Abstract

To use finite element analysis to study the stability of different fixation methods used to repair Vancouver type B1 periprosthetic fractures occurring after total hip arthroplasty (THA). An artificial femur was used as the basis for the solid model; U2 series femoral stem (United Orthopedic Corporation, Hsinchu, Taiwan) was used for modelling of the prosthesis; and the modelling of the cable plate, wires and screws was based on information given in the manufacturer's catalogue (Zimmer, Warsaw, IN, USA). The analysis model was constructed using the ANSYS software, and all material settings were based on literature values. A six-orifice cable plate, unicortical screws (20mm long and 4.5mm in diameter) and bicortical screws (50mm long and 4.5mm in diameter) were constructed. Four analysis models were defined. The basic model had a plate and three cable wires above the fracture line and two bicortical screws below the fracture line. In the second model, two unicortical screws were added above the fracture line. In the third model, three wires were added below the fracture line. In the fourth model, both the proximal screws of the second model and the distal wires of the third model were added to the basic model. To ensure that the...Continue Reading

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Citations

Dec 17, 2014·International Orthopaedics·Adam T Yasen, Fares S Haddad
Apr 22, 2017·Journal of Orthopaedic Trauma·Frank A LiporaceCory A Collinge
Jul 28, 2020·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Cheng-Chi WangKuo-Chih Su
Aug 9, 2020·Computer Methods and Programs in Biomedicine·Raja DhasonShubhabrata Datta

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