When a dog jumps out of the car ,off the bed or furniture ther is potential for subluxation in the neck and shoulder. Subluxation will pinch the nerves to the shoulderi muscles as well as the front leg.
Animal chiropractors are skilled at diagnosing this problem and fixing it.
Often your dog will be lame and refuse to jump. Your vet will clear them of illness but is not skilled at chiropractic so usually just meds are given for pain.
If you have a dog experiencing this please contact dr bruce at Indekchiropractic@gmail.com or 781-337-1180