A biomechanical study on single rod spinal instrumentation system in an unstable thoracolumbar injury model : (Record no. 2989)

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fixed length control field 02643nam a22002057a 4500
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control field DOH
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control field 20210219135903.0
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fixed length control field 210219b ||||| |||| 00| 0 eng d
245 02 - TITLE STATEMENT
Title A biomechanical study on single rod spinal instrumentation system in an unstable thoracolumbar injury model :
Remainder of title a finite element analysis /
Statement of responsibility, etc. Jereme B. Atupan, Rafael C. Bundoc
520 3# - SUMMARY, ETC.
Summary, etc. OBJECTIVES: To develop three dimensional computer models of the anterior thoracolumbar spine implants or constructs (the novel single rod-screw implant and the standard implants) and to evaluate its biomechanical properties through a graphically reconstructed testing standard.<br/><br/><br/>METHODS: We developed a finite element modeling technique based on actual geometry of the implant constructs and mechanical property data from standard biomechanical studies on anterior thoracolumbar spinal instrumentation systems. Seven constructs were mounted on simulated vertebral bodies. Axial load sharing was measured through a range of applied axial loads from 100 N to 1600 N. The static destructive tests were conducted. The bending strength of each construct was calculated with a full length corpectomy graft in place, simulating reconstruction of the anterior column, and with no graft in place, simulating catastrophic graft failure.<br/><br/>RESULTS: Static testing parameter demonstrated highly significant differences between devices. The plate construct formed the highest subset in bending strength of 1000-1100 N, whereas the single rod showed the lowest value of 300-400N. However, the bending strengths of single rod and dual rod both without bone grafts were not significantly different. With the graft in place, bending strength of the constructs significantly increased beyond the maximum set of load of 1600N, underlying the importance of the graft in overall construct strength.<br/><br/><br/>CONCLUSION: The 3-D finite element models for anterior thoracolumbar instrumentation system were designed with mechanical properties comparable to the actual biomechanical testing results. Although single rod construct has the lowest value, its bending strength is comparable to the standard dual rod system under static axial loading. Bone graft contributed to overall construct stiffness.
580 ## - LINKING ENTRY COMPLEXITY NOTE
Linking entry complexity note In: Acta Medica Philippina, 2012 vol 46 (2) pages: 38-43
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Uncontrolled term Anterior Spinal Instrumentation
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Uncontrolled term Finite Element Analysis
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Uncontrolled term Thoracolumbar Spine
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Atupan, Jereme B.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Bundoc, Rafael C.
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Uniform Resource Identifier <a href="https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/2161/1576">https://actamedicaphilippina.upm.edu.ph/index.php/acta/article/view/2161/1576</a>
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Journal Article
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-- 2989
-- 2989
Holdings
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    National Library of Medicine     DOH Central Library DOH Central Library Electronic Resource Section 02/19/2021   J000080 D0001J000080 02/19/2021 02/19/2021 Journal Article