Principles of Stable Internal Fixation

  • J. Schatzker


The principal mechanical function of bone is to act as a supporting structure and transmit load. The loads which bone has to withstand are those of pure compression, those of bending, which result in one cortex being loaded in tension and the other in compression, and those of torque, or twisting. Bone is strongest in compression and weakest in tension. Fractures as a result of pure compression are therefore rare and occur only in areas of cancellous bone with a thin cortical shell. Thus, we find pure compression fractures in such areas as the metaphyses, vertebral bodies, and the os calcis. Transverse, oblique, and spiral are the common fracture patterns seen in tubular bone.


Internal Fixation Intramedullary Nailing Absolute Stability Tubular Bone Soft Tissue Component 
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© Springer-Verlag Berlin Heidelberg 1987

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  • J. Schatzker

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