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The deformation of external fixation devices during loading

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Summary

The stability of four different types of external fixation devices was studied when they were subjected to torison, bending and deformation under axial compression. The most stable fixation was achieved when the bone ends were in contact. The frames were weakest when the stress was applied at right angles to the plane of the frame. All four had adequate stability for fracture healing.

Résumé

Les auteurs ont étudié la stabilité de quatre types différents de fixateurs externes soumis à des forces de torsion, de flexion et de compression axiale. On obtient la fixation la plus stable lorsque les extrémités osseuses sont en contact.

La résistance est la plus faible lorsque les forces s'exercent perpendiculairement au plan dans lequel est placé le cadre. Les quatre montages réalisent une stabilité suffisante pour la consolidation d'une fracture.

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Karaharju, E.O., Aalto, K. The deformation of external fixation devices during loading. International Orthopaedics 7, 179–183 (1983). https://doi.org/10.1007/BF00269503

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