A finite element analysis of bone plates available for prophylactic internal fixation of the radial osteocutaneous donor site using the sheep tibia model

Abstract Introduction The strengthening effect of prophylactic internal fixation (PIF) with a bone plate at the radial osteocutaneous flap donor site has previously been demonstrated using the sheep tibia model of the human radius. This study investigated whether a finite element (FE) model could ac...

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Veröffentlicht in:Medical engineering & physics 2013-10, Vol.35 (10), p.1421-1430
Hauptverfasser: Avery, C.M.E, Bujtár, Péter, Simonovics, János, Dézsi, Tamás, Váradi, Károly, Sándor, George K.B, Pan, Jingzhe
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container_end_page 1430
container_issue 10
container_start_page 1421
container_title Medical engineering & physics
container_volume 35
creator Avery, C.M.E
Bujtár, Péter
Simonovics, János
Dézsi, Tamás
Váradi, Károly
Sándor, George K.B
Pan, Jingzhe
description Abstract Introduction The strengthening effect of prophylactic internal fixation (PIF) with a bone plate at the radial osteocutaneous flap donor site has previously been demonstrated using the sheep tibia model of the human radius. This study investigated whether a finite element (FE) model could accurately represent this biomechanical model and whether stress or strain based failure criteria are most appropriate. Methods An FE model of an osteotomised sheep tibia bone was strengthened using 4 types of plates with unilocking or bicortical screw fixation. Torsion and 4-point bending simulations were performed. The maximum von Mises stresses and strain failure criteria were studied. Results The strengthening effects when applying stress failure criteria [factor 1.76–4.57 bending and 1.33–1.80 torsion] were comparable to the sheep biomechanical model [factor 1.73–2.43 bending and 1.54–2.63 torsion]. The strongest construct was the straight 3.5 mm stainless steel unilocking plate. Applying strain criteria the strongest construct was the straight 3.5 mm stainless DCP plate with bicortical screw fixation. Conclusions The FE model was validated by comparison with the sheep tibia model. The complex biomechanics at the bone-screw interface require further investigation. This FE modelling technique may be applied to a model of the human radius and other sites.
doi_str_mv 10.1016/j.medengphy.2013.03.014
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This study investigated whether a finite element (FE) model could accurately represent this biomechanical model and whether stress or strain based failure criteria are most appropriate. Methods An FE model of an osteotomised sheep tibia bone was strengthened using 4 types of plates with unilocking or bicortical screw fixation. Torsion and 4-point bending simulations were performed. The maximum von Mises stresses and strain failure criteria were studied. Results The strengthening effects when applying stress failure criteria [factor 1.76–4.57 bending and 1.33–1.80 torsion] were comparable to the sheep biomechanical model [factor 1.73–2.43 bending and 1.54–2.63 torsion]. The strongest construct was the straight 3.5 mm stainless steel unilocking plate. Applying strain criteria the strongest construct was the straight 3.5 mm stainless DCP plate with bicortical screw fixation. Conclusions The FE model was validated by comparison with the sheep tibia model. The complex biomechanics at the bone-screw interface require further investigation. This FE modelling technique may be applied to a model of the human radius and other sites.</description><identifier>ISSN: 1350-4533</identifier><identifier>EISSN: 1873-4030</identifier><identifier>DOI: 10.1016/j.medengphy.2013.03.014</identifier><identifier>PMID: 23622945</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Animals ; Biomechanics ; Bone ; Bone plate ; Bone Plates ; Compressive Strength ; Finite Element Analysis ; Fracture ; Fracture Fixation, Internal - instrumentation ; Materials Testing ; Morbidity ; Radiology ; Radius ; Sheep ; Sheep tibia ; Stress, Mechanical ; Surgical Flaps ; Tibia - injuries ; Tibia - surgery</subject><ispartof>Medical engineering &amp; physics, 2013-10, Vol.35 (10), p.1421-1430</ispartof><rights>IPEM</rights><rights>2013 IPEM</rights><rights>Copyright © 2013 IPEM. Published by Elsevier Ltd. 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This study investigated whether a finite element (FE) model could accurately represent this biomechanical model and whether stress or strain based failure criteria are most appropriate. Methods An FE model of an osteotomised sheep tibia bone was strengthened using 4 types of plates with unilocking or bicortical screw fixation. Torsion and 4-point bending simulations were performed. The maximum von Mises stresses and strain failure criteria were studied. Results The strengthening effects when applying stress failure criteria [factor 1.76–4.57 bending and 1.33–1.80 torsion] were comparable to the sheep biomechanical model [factor 1.73–2.43 bending and 1.54–2.63 torsion]. The strongest construct was the straight 3.5 mm stainless steel unilocking plate. Applying strain criteria the strongest construct was the straight 3.5 mm stainless DCP plate with bicortical screw fixation. Conclusions The FE model was validated by comparison with the sheep tibia model. The complex biomechanics at the bone-screw interface require further investigation. This FE modelling technique may be applied to a model of the human radius and other sites.</description><subject>Animals</subject><subject>Biomechanics</subject><subject>Bone</subject><subject>Bone plate</subject><subject>Bone Plates</subject><subject>Compressive Strength</subject><subject>Finite Element Analysis</subject><subject>Fracture</subject><subject>Fracture Fixation, Internal - instrumentation</subject><subject>Materials Testing</subject><subject>Morbidity</subject><subject>Radiology</subject><subject>Radius</subject><subject>Sheep</subject><subject>Sheep tibia</subject><subject>Stress, Mechanical</subject><subject>Surgical Flaps</subject><subject>Tibia - injuries</subject><subject>Tibia - surgery</subject><issn>1350-4533</issn><issn>1873-4030</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqNUstuFDEQHCEQCYFfAB-5zNJ-zOuCtIqAIEXiAJwtj6ed9eKxF9sTZT-Fv8WTDTlwAclWW1Z1ldtVVfWGwoYCbd_tNzNO6G8Ou-OGAeUbKIuKJ9U57TteC-DwtJx5A7VoOD-rXqS0BwAhWv68OmO8ZWwQzXn1a0uM9TYjQYcz-kyUV-6YbCLBkDF4JAenMiaibpV1anRITIjkEEPRdkpnq4n1GWNpK1R3Ktvg1968QxLVZMt1SBmDXrLyGJZEpuALQ1pFl2T9zT007RAPJNvRKjKHCd3L6plRLuGrh3pRff_44dvlVX395dPny-11rUUz5JpDz3DUzTCZAZAxxUzZnQKtW0YV8AEF7_tJjKiaDlqBqjNqMCj6yQAf-UX19sRbRvq5YMpytkmjc6fXStoAdAMt5d9QwQZGOw5dgXYnqI4hpYhGHqKdVTxKCnK1UO7lo4VytVBCWVSUztcPIstYEI99fzwrgO0JgOVXbi1GmbRFr3GyEXWWU7D_IfL-Lw7tSgy0cj_wiGkfltXPMpFMTIL8uiZpDRLlJURdy_lv2VbJew</recordid><startdate>20131001</startdate><enddate>20131001</enddate><creator>Avery, C.M.E</creator><creator>Bujtár, Péter</creator><creator>Simonovics, János</creator><creator>Dézsi, Tamás</creator><creator>Váradi, Károly</creator><creator>Sándor, George K.B</creator><creator>Pan, Jingzhe</creator><general>Elsevier Ltd</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20131001</creationdate><title>A finite element analysis of bone plates available for prophylactic internal fixation of the radial osteocutaneous donor site using the sheep tibia model</title><author>Avery, C.M.E ; 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physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Avery, C.M.E</au><au>Bujtár, Péter</au><au>Simonovics, János</au><au>Dézsi, Tamás</au><au>Váradi, Károly</au><au>Sándor, George K.B</au><au>Pan, Jingzhe</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A finite element analysis of bone plates available for prophylactic internal fixation of the radial osteocutaneous donor site using the sheep tibia model</atitle><jtitle>Medical engineering &amp; physics</jtitle><addtitle>Med Eng Phys</addtitle><date>2013-10-01</date><risdate>2013</risdate><volume>35</volume><issue>10</issue><spage>1421</spage><epage>1430</epage><pages>1421-1430</pages><issn>1350-4533</issn><eissn>1873-4030</eissn><abstract>Abstract Introduction The strengthening effect of prophylactic internal fixation (PIF) with a bone plate at the radial osteocutaneous flap donor site has previously been demonstrated using the sheep tibia model of the human radius. This study investigated whether a finite element (FE) model could accurately represent this biomechanical model and whether stress or strain based failure criteria are most appropriate. Methods An FE model of an osteotomised sheep tibia bone was strengthened using 4 types of plates with unilocking or bicortical screw fixation. Torsion and 4-point bending simulations were performed. The maximum von Mises stresses and strain failure criteria were studied. Results The strengthening effects when applying stress failure criteria [factor 1.76–4.57 bending and 1.33–1.80 torsion] were comparable to the sheep biomechanical model [factor 1.73–2.43 bending and 1.54–2.63 torsion]. The strongest construct was the straight 3.5 mm stainless steel unilocking plate. Applying strain criteria the strongest construct was the straight 3.5 mm stainless DCP plate with bicortical screw fixation. Conclusions The FE model was validated by comparison with the sheep tibia model. The complex biomechanics at the bone-screw interface require further investigation. This FE modelling technique may be applied to a model of the human radius and other sites.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>23622945</pmid><doi>10.1016/j.medengphy.2013.03.014</doi><tpages>10</tpages></addata></record>
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subjects Animals
Biomechanics
Bone
Bone plate
Bone Plates
Compressive Strength
Finite Element Analysis
Fracture
Fracture Fixation, Internal - instrumentation
Materials Testing
Morbidity
Radiology
Radius
Sheep
Sheep tibia
Stress, Mechanical
Surgical Flaps
Tibia - injuries
Tibia - surgery
title A finite element analysis of bone plates available for prophylactic internal fixation of the radial osteocutaneous donor site using the sheep tibia model
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