In vitro comparative study of canine knees drawer movement submitted to two extra-capsular techniques to fix the instability after abruption of the cranial cruciate ligament

摘要

> face="Verdana, Arial, Helvetica, sans-serif" size="2">The rupture of the cranial cruciate ligament (RLCCr) is a common orthopedic disorder in dogs resulting in instability of the knee that promotes: lameness and progressive degenerative changes. The best technique to repair RLCCr, is not well elucidated. Most techniques achieve a success rate between 80 to 90% and all have advantages and disadvantages. The objective of this study was to evaluate the results of extra-capsular stabilization using two different points of anchorage in the femora tibio-patellar joint, as a way of repairing of RCCrL in dogs, which were used for 20 members of pelvic canines. After RCCrL all members were assessed to verify the efficiency of the technique through the study of cranial caudal stability of the knee in 90° of flexion and extension of 130°. The extra-capsular stabilization performed in cadavers brought stability without demonstrating superiority of either technique, and both could not give isometric stability when tested with the members positioning in the angle of 90° and 130°.