Tensioning Wires with a Dyna Wire Tensioner
by IMEX Veterinary
Proper wire tensioning of small diameter wires on circular and hybrid fixator frames is simple when using the semi-calibrated Dyna wire tensioner. Recommended tension levels vary according to ring diameter with 66 mm rings at approximately 57 kg, 84 mm at approximately 81 kg, and 118 mm rings at approximately 95 kg. The 50 mm rings in the standard size system and any rings used with the mini CESF system should not be tensioned.
Three rings on the Dyna wire tensioner body indicate approximate tension levels for the three ring diameters that are tensioned. These lines represent the maximum tension to apply to the corresponding ring diameter and surgeons should feel free to stop before reaching that level of tension if they determine adequate tension has been applied. In addition, some surgeons recommend tensioning wires placed across partial rings less than wires across complete rings. The guidelines outlined above are based on complete rings.
Figure 1 | Illustration of IMEX Dyna Wire Tensioner