Stifle Joint in Dog
The stifle joint relies solely upon soft tissue structures for its integrity; thus it differs from an elbow or a hip joint that have a lot of parallel joint surfaces and an interlocking structure to the joints that give them inherent stability and an almost vacuum effect that keeps the joint surfaces together.
Along with the CrCL, the other soft tissue structures stabilising the stifle are the caudal cruciate ligament and the two menisci, all of which are intra-articular (within the joint), and the two collateral ligaments (external to the joint). Muscle tone through the quadriceps, hamstring and calf muscles play a significant role in the forces acting on the joint.
Read more about this topic: Triple Tibial Osteotomy
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