For the most part, the Patellar Luxation, also known as the Slipped Stifle, is a fairly common toy breed and a genetic condition of small dogs. It can also be caused by trauma. It occurs when your dog’s “knee” joint, just above the hock on the hind leg, slips. Sometimes it corrects itself, sometimes your vet can put it back in the groove, and sometimes it may require surgery. Many vets believe that if not surgically corrected, osteoarthritis will eventually develop.
What Causes Slippery Knee?
It is believed to be a genetic deformation of the femur (thigh bone), tibia (shin bone) and knee joint (patella). Normally, the patella glides smoothly and securely in the femoral groove. In affected dogs, the groove is shallow and/or misshapen. The ligaments that hold the patella in place become weak, making the angulation between the femur and tibia irregular and unstable. When your dog runs, turns, jumps up or down, the kneecap pops out of the groove.
Another cause can be trauma, as it can also damage the joint, weakening the aligning ligaments.
Signs to watch out for:
It most often happens when your dog runs like mad through the yard, or jumps for a ball, Frisbee. While airborne they will howl in pain, often circling around biting their hind leg as they lift it off the ground. They will often walk with a limp for 10 to 30 minutes; then they go back to normal.
You will notice:
Mood swings… can become abrupt when there is pain
He grunts or snaps when he picks them up or touches their hindquarters.
walking on three legs
limping
Jumping
Skipping
Deals:
Even if your dog appears to be back to normal, you should still have your dog examined by your vet. They may suggest an anti-inflammatory or glucosamine, but eventually, they will most likely recommend surgery to decrease the risk of arthritis.
Since Slipped Stifle is inherited by a faulty gene, affected dogs must be spayed or neutered, so as not to perpetuate the condition.
What you can do to help your pet:
short walks
weight control
mild to moderate exercise
Limit strenuous exercise to less weight-bearing exercises, such as swimming
Physical therapy
Massage
Breeds predisposed to Slipped Stifle include, but are not limited to:
affenpinscher
American Cocker Spaniel
australian terriers
basset hounds
boston terrier
Brussels Griffon
Chihuahua
cavalier king charles spaniel
english cocker spaniel
english toy spaniel
italian greyhound
Jack Russell Terrier
kii leo
lhasa apso
Maltese
Butterfly
Pekingese
Pomeranian
Poodle (Toy and Miniature)
Shih Tzu
toy manchester terrier
yorkshire terrier
It should be noted that larger breeds are not affected. Certain larger breeds, like Labrador Retrievers, are also prone to Slipped Stifle.
Bottom line: As your dog ages, the problem may become more prevalent, and it may take longer to recover. Don’t wait until too much damage has been done to your joints.