Cordey J, Perren S M, Steinemann S
Helv Chir Acta. 1989 Jun;56(1-2):235-9.
It is generally admitted that plate fixation of fractures results in reduced stress (stress protection) and subsequent structural adaptation of bone (bone loss). The analysis of the stress pattern and the reduction of deformation work in plated bones is a prerequisite for the assertion that bone loss is stress related. The strain field within bones under eccentric axial load has been analyzed theoretically and verified experimentally. The difference between the reduction of stress obtained using the flexible plate materials is small. Reduction of plate stiffness does not result in proportional improvement of the bone strain.
人们普遍认为，骨折的钢板固定会导致应力降低（应力保护）以及随后骨骼的结构适应性变化（骨质流失）。分析钢板固定骨骼的应力模式和变形功的减少是断定骨质流失与应力相关的前提条件。偏心轴向载荷下骨骼内部的应变场已进行了理论分析并通过实验验证。使用柔性钢板材料所获得的应力降低差异很小。钢板刚度的降低并不会使骨骼应变得到成比例的改善。
