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김세동,인주철,안종철,염영일,이일기,안면환,추도식 대한골절학회 1991 대한골절학회지 Vol.4 No.1
The bone plate, nail and external fixation apparatus have been indtroduced for the union of the ftactured bones. Recently, the external fixation technique has been revived, especially for the healing of the fractured tibia, femur, pelvis and forearm bones. The device was intended to neutralize a comminuted fracture by provision of interfragmentary compression. Numerous different types of external fixation apparatuses have been developed in U.S.A. and other European countries. However, m our country, the apparatuses have been imported and utilized for the surgical application without any experimental confirmation. For the elucidation of the usage of imported external fixation devices, the stiffness of the extemal fixation devices (Orthofix, Monofixateure, and Hoffmann) were analyized experimentally. MTS and universal testing machine(UTM) were used for the experimental analysis under the different loading conditions of axial compression, antero-posterior and medio-lateral bending. Furthermore, the stiffness and yielding load of the laboratory developed unilateral type of external fixatian device were compared with those of the imported ones. In addition to this, the configuration of laboratory developed device was changed for the parametric study under the axial compression. The stiffness and yielding load of the laboratory developed device were sufficient for surgical application. However, the weight of our laboratory developed model is 1.2 times the average weight of imported ones. The reduction of weight may be needed for more convenient surgical application