Ramirez Juan M, Lefebvre Michael, Böhme Beatrice, Laurent Cédric, Balligand Marc
Department of Clinical Sciences, Division of Small Animal Surgery, College of Veterinary Medicine, University of Liège, Liège, Belgium.
Department of Clinical Sciences, Division of Small Animal Surgery, College of Veterinary Medicine, University of Liège, Liège, Belgium.
Res Vet Sci. 2015 Feb;98:115-20. doi: 10.1016/j.rvsc.2014.11.012. Epub 2014 Nov 25.
Cranial cruciate ligament (CrCL) deficiency is the leading cause of lameness of the canine stifle. Application of tension in the quadriceps muscle could trigger cranial tibial translation in case of CrCL rupture. We replaced the quadriceps muscle and the gastrocnemius muscle by load cells and turn-buckles. First, eight canine limbs were placed in a servo-hydraulic testing machine, which applied 50% of body weight (BW). In a second phase, the CrCL was transected, and the limbs were tested in a similar manner. In a third phase, a quadriceps pretension of 15% BW was applied and limbs were again tested in a similar manner. Cranial tibial translation was significantly decreased in CrCL deficient stifles (p < 0.05) when quadriceps pretension was applied. These findings indicate that quadriceps pretension could play a role in the stability of a CrCL deficient stifle and should then be considered in rehabilitation programs and conservative treatment of CrCL rupture in dogs.
颅交叉韧带（CrCL）损伤是犬膝关节跛行的主要原因。在CrCL断裂的情况下，股四头肌施加张力会引发胫骨向前移位。我们用测力传感器和花篮螺栓替换了股四头肌和腓肠肌。首先，将8个犬肢置于伺服液压试验机中，施加50%体重（BW）的负荷。在第二阶段，切断CrCL，以类似方式对肢体进行测试。在第三阶段，施加15%BW的股四头肌预张力，并再次以类似方式对肢体进行测试。当施加股四头肌预张力时，CrCL损伤的膝关节中胫骨向前移位显著减少（p<0.05）。这些发现表明，股四头肌预张力可能在CrCL损伤的膝关节稳定性中发挥作用，因此在犬CrCL断裂的康复计划和保守治疗中应予以考虑。
