Resistance of cerclage to knot failure.
The comparative ability of loop-knotted and twist-knotted cerclage to withstand tensile forces was tested. Two twist-knot devices and one loop-knot device were used to apply cerclage wires to a 5-cm diameter split circular jaw mounted on a tensile testing machine. Twist-knot devices were tested with 0.8-, 1.0-, or 1.2-mm wire, and the loop-knot device was tested with 0.8-, 1.0-, or 1.25-mm wire. For all wire sizes, the twisted knot provided greater resistance to knot failure than did the loop-knot. Of the 2 twist-knot devices, the Rhinelander wire tightener-twister produced the greatest resistance to knot failure. Knot resistance increased with increase in wire size for all devices tested.
D000818:Animals; D005593:Fracture Fixation, Internal / Q000295:instrumentation / Q000379:methods* / Q000662:veterinary; D013193:Stainless Steel; D013718:Tensile Strength
D013193:Stainless Steel