The cranial cruciate ligament (CCL) is part of the stifle joint and acts to limit internal rotation and forward movement of the lower and upper part of a dog’s hind leg. In people, this is called the anterior cruciate ligament, or the ACL, and it is part of the human knee. Damage to a dog’s cranial cruciate ligament is one of the most common causes of hind limb lameness in companion dogs. Most cases will require surgical stabilization or reconstruction, along with moderate lifestyle changes and medical management, to restore stability to the stifle and reestablish a good, pain-free quality of life for affected animals.
The “stifle” is the dog’s equivalent of the human knee. It is normally stabilized by a number of ligaments. The main two are the cranial and caudal cruciate ligaments, which cross over the front of the stifle joint. Two other ligaments, the medial and lateral collateral ligaments, stabilize the sides of the stifle joints in dogs. Rupture of the cranial cruciate ligament is a common, and potentially quite serious, condition in pet dogs.
The stifle joint of the dog is especially vulnerable to injury, because it has no interlocking bones to provide structural support. Instead, a dog’s stifle, or knee joint (in its hind legs), depends upon a meshwork of ligaments and muscles for stability. The cranial cruciate ligament (CCL) provides most of this support for the stifle and, when partially torn or completely ruptured, leaves only the muscles and soft tissues surrounding the stifle to hold the
Damage to the cranial cruciate ligament (CCL) is the most common cause of canine hind limb lameness and is a major cause of degenerative joint disease in the stifle (knee) joint of companion dogs. The cranial cruciate ligament is critical to stabilizing a dog’s stifle, which is the equivalent of the human knee. When the CCL is torn, the upper ends of the two long lower leg bones (the tibia and fibula, like the shin
Cranial cruciate ligament injuries are quite common in domestic dogs. Fortunately, they are not particularly difficult for skilled veterinarians to diagnose. When presented with a patient limping on one or both of its hind legs, the veterinarian with initially do several things. First, she will take a thorough history from the dog’s owner, paying particular attention to whether the dog had any recent trauma that may have caused an injury to the affected leg (such
When a dog suddenly comes up lame in one or both hind legs, its owner should take it to a veterinarian as soon as possible. Left untreated, damage to the stifle (knee) joint usually is progressively degenerative; any chance of reasonable recovery wanes without treatment. A dog that favors an injured leg for a long period of time also runs a significant risk of eventually damaging some part of its “good” leg, because it is
Pet owners can help their dogs cope with injuries to their cranial cruciate ligaments (basically, injury to their knees) by keeping the dog’s activity levels down, feeding the dog an appropriate diet and working with the dog through veterinarian-recommended therapies.Most dogs with CCL injuries require 8 to 12 weeks of restricted activity following surgical correction. It is difficult to keep playful and energetic dogs quiet for that long of a period of time, but owners
The stifle joint is vulnerable to injury because it has no interlocking bones to provide structural support. Instead, a dog’s stifle depends upon a meshwork of ligaments and muscles for stability. The cranial cruciate ligament provides most of this support and, when partially torn or completely ruptured, leaves only the muscles and soft tissues surrounding the knee to hold the joint in place. Damage to the CCL can occur from acute trauma or from chronic