Stiffness Characteristics of the Circular Ilizarov Device as Opposed to Conventional External Fixators
- 1 February 1990
- journal article
- research article
- Published by ASME International in Journal of Biomechanical Engineering
- Vol. 112 (1) , 15-21
- https://doi.org/10.1115/1.2891120
Abstract
Ilizarov proposes the use of a special circular fixation device for treatment of bone defects and nonunions or for limb lengthening. Supposition was that the success of this method has to do with the specific mechanical behavior of the device. This behavior is a result of the configuration of the fixation elements. Therefore, a mechanical study of the sensitivity of the circular compression and distraction device (CDD) to configuration parameters was performed. The CDD was found to exhibit a nonlinear stiffness behavior, in particular under axial load. This may be favorable for the induction and tolerance of bone formation. Among the different parameters tested the ring radius was the most important with respect to stiffness. In general, the stiffness of the CDD allows adjustment during postoperative management. In magnitude, it is equal or lower when compared to other fixator types.Keywords
This publication has 1 reference indexed in Scilit:
- Rigidity and stress analyses of external fracture fixation devices—A theoretical approachJournal of Biomechanics, 1982