AuthorsV. La Russa, B. H. Skallerud, J. Klaksvik and O. A. Foss
TitleWire Tension Versus Wire Frequency: an Experimental Ilizarov Frame Study
Afilliation, Scientific Computing
Project(s)Center for Biomedical Computing (SFF)
Publication TypeJournal Article
Year of Publication2010
JournalJournal of Biomechanics

Stability of an Ilizarov frame highly depends on maintenance of adequate tension in the wires. Wire tension should be measured accurately in experimental laboratory studies when new types of wire fixators are tested. In this study, 20 wires were tested using two different wire fixators. The wires were sequentially tensioned from 0 to 1275N in 50N intervals. For each tension value, corresponding vibration frequency was recorded. We then described the relationship between wire tension and wire vibration frequency in an empirical equation (R2=99.8). Wire vibration frequency can also be described theoretically by the Euler-Bernoulli equation for a thin beam. Theoretical frequencies were calculated and compared with corresponding experimental frequencies. A close agreement was found (95% limits of agreement, \pm3.2Hz). This empirical equation represents a simple tool, applicable when investigating the effect of new wire fixators, pre-tensioning and frame constructions on wire tension.

Citation KeySimula.simula.44