Shorter screw lengths in dynamic Dynesys fixation have less screw loosening: From clinical investigation to finite-element analysis.
Journal of the Chinese Medical Association : JCMA(2023)
摘要
Shorter screws in Dynesys fixation may help avoid dynamic SL. Clinically, 50 mm screws showed the greatest SL and median screw screws demonstrated the least displacement biomechanically.
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关键词
Finite-element analysis,Fracture fixation,Internal,Lumbar vertebrae,Pedicle screw,Prosthesis failure
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