| 摘要 |
The stability of an orthopedic assembly characterized by external fixation means in the form of a fixation bar provided with five assemblies of strain gauges having at least one gauge each, involves the measuring the amount of torsion of the bar by one of the assemblies and measuring of two perpendicular components of the amount of bending of the bar at two points of the bar via the remaining two pairs of assemblies and determining by means of the strain gauges of the amount of torsion and the amount of bending at the level of the clamps which connect the fixation bar to the pins and by the comparison of the determined levels of the torsion and bending with those capable of causing sliding of the clamps, the extent of stability of the orthopedic assembly.
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