The effect of load obliquity on the strength of locking and nonlocking constructs in synthetic osteoporotic bone

• Published in: Medical engineering & physics Vol. 37; no. 11; pp. 1047 - 1052
• Main Authors: Tensmeyer, Daniel F, Gustafson, Peter A, Jastifer, James R, Patel, Bipin, Chess, Joseph L
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.11.2015
• Subjects: Biomechanical Phenomena; Biomechanics; Bone Plates; Bone Screws; Bone Substitutes; Elasticity; Equipment Design; Equipment Failure Analysis - instrumentation; Equipment Failure Analysis - methods; Humans; Locking compression plate; Locking screws; Non-locking screws; Osteoporosis - surgery; Osteoporotic bone; Prosthesis Failure; Radiology; Biomechanics; Non-locking screws; Osteoporotic bone; Locking compression plate; Locking screws

Highlights • Bone fixation failure is dependent on the degree of load obliquity. • Screw design and the screw-plate interface influence failure mechanisms. • The failure mode for normal loads is pullout. • There are mixed failure modes for oblique and parallel loads.