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Michael J. Singer, G. Pijanowski, R. Wiley, A. L. Johnson, A. M. Siegel
Biomechanical evaluation of a veterinary suture anchor in the canine cadaver pelvis and femur
Keywords: BoneBiter®, Suture anchor, coxofemoral luxation, biomechanics
A commercially available veterinary suture anchor was tested in the acetabula and femurs of canine cadavers. Size #2 suture anchor constructs were compared to a traditional screw and Teflon spiked washer constructs in a model of coxofemoral luxation repair. The screw/washer constructs failed at a higher maximum load than the #2 anchor constructs. In the acetabulum, significant differences in strength were also found in the position of the implant and in the direction of pull. The constructs in a more caudal position, and constructs pulled 90 degrees to the axis of insertion, failed at higher loads. The predominant mode of failure of the constructs was a suture failure. In the femur, size #5 suture anchors were used in a model of cranial cruciate ligament repair and collateral ligament repair. The anchor constructs failed predominantly by anchor pull-out in the distal femur. The constructs pulled 90 degrees to the axis of insertion were stronger than constructs pulled at 0 degrees to the axis of insertion. Varying the location of the implant in the femur did not affect the maximum load to failure.
Veterinary and Comparative Orthopaedics and Traumatology, Schattauer
Print ISSN: 0932-0814
Volume: 18
Pages: 31 - 36