The dog may become weaker in his movement. The dog gets up more slowly or will flop down to rest.
Abnormal movement - When luxation occurs the dog will try to kick the patella back into place. Often this will correct the luxation for a period.
Unusual gait - You’ll notice your dog is walking strangely in the case of patellar luxation. If the dog’s gate is unbalanced, patellar luxation could be the cause.
Loss of enthusiasm - If your dog usually jumps about but has stopped, this could be a sign of patellar luxation. They will usually develop an intolerance for exercise and appear lethargic.
In severe cases lameness can occur.
Sometimes lameness can come on quite suddenly and the symptom is unmistakable.