Nonlinear mechanical analysis of posterior spinal instrumentation for osteoporotic vertebra: Effects of mechanical properties of the rod on the failure risks around the screw

In spinal fusion with instrumentation for the treatment of osteoporotic vertebral fracture, it is common for pedicle screws, which are inserted into vertebrae and strongly immobilized by a rigid rod, to loosen and dissociate. One of their expected causes is failure and reduction of fixity around a s...

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Bibliographic Details
Main Authors: Daisuke TAWARA, Kenta NORO, Tetsuya TSUJIKAMI, Yoshiyuki OKAMOTO, Hideki MURAKAMI
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2014-06-01
Series:Journal of Biomechanical Science and Engineering
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jbse/9/2/9_13-00163/_pdf/-char/en