Has your vet checked your dog for slipping patellas (Patellar Luxation)? At times in affected dogs the knee cap can shift to on side and cause temporary lameness - the dog then stretches the leg and the knee cap slips back into place and all is well again.
The knee cap is kept in place with the help of a notch or groove where it sits. Sometimes the notch/groove is not the correct shape (often shallow) and allows the knee cap to slip (medial or lateral luxation).
This is not an uncommon problem especially in smaller dogs such as Jack Russell Terriers.
Your vet should be able to palpate the knee cap to determine if this may be the cause of your dogs temporary lameness.
Bernerly, Angela Wagenblast Wagenblast Kennels Caledonia, Ont.
about twice or three times a week, my pup suddenly starts hobbling around with his right hind leg off the ground ... as if it were injured. But this only lasts a couple of minutes, sometimes even less than a minute. Then all of a sudden, he's playing and running around as usual.
