Dr. Randall answers your joint & mobility questions

Dr. Randall

With bigger dogs, a limp can come from several things, so the first clue is which legs are involved. If it’s just one leg, I think about the knee — a cruciate ligament or another knee injury. If the dog is slow getting up in the rear, or it looks like both back legs, that points more toward something like hip dysplasia.

A couple of things help right away. First, weight: if the dog is carrying extra pounds, that has to come off — you won’t get an overweight dog comfortable on sore joints. Cutting calories or switching to a veterinary diet, plus low-impact exercise, makes a real difference. Many dogs love to swim, and swimming is ideal because it works the joints without loading them. Give it a couple of months; if the dog is still limping, it’s time for the vet and some x-rays.

Dr. Randall

Hip dysplasia is common — German Shepherds especially. It can be genetic, or it can follow trauma to the joint. Normally the hip works like a ball-and-socket: the head of the thigh bone sits snugly in the socket of the pelvis. With dysplasia, the ligaments and muscles that hold that joint together don’t do their job, so the ball rides up out of the socket and you get bone against bone — which is painful, and usually pretty obvious in how the dog moves.

If you suspect it, see your vet. We confirm it with radiographs and rule out anything else going on. A lot can then be managed conservatively: keeping weight off the joint, and physical therapy. Swimming is excellent, and most Shepherds love the water. If the dog keeps struggling, we re-x-ray and talk through next steps.

Dr. Randall

The stifle is the dog’s knee. High-energy dogs that tear around and spin on slick surfaces like tile or hardwood can injure it — the kneecap can slip in and out of place, or they can tear a cruciate ligament. Once a joint like that has been injured, it tends to be a lifetime consideration, even after a good surgical repair.

So with a dog who’s already had the knees fixed, the goal is to protect those joints. First, traction: keep the dog from sprinting on hard floors, and put down rugs so it isn’t slipping and torquing the knees. Second, weight — if your vet says the dog is carrying extra, get it on a diet plan, because every extra pound is load on those joints. And keep exercise low-impact. On supplements: joint support is really about more than glucosamine alone — a formula that combines several joint ingredients tends to make more sense than any single one.

Dr. Randall

Start with what not to give, because this matters: never give your dog ibuprofen or Tylenol. People reach for them because they’re in the cabinet, but they can cause liver failure and be fatal. Even low-dose “baby” or cardiac aspirin tends to cause stomach problems, so it’s not a safe shortcut.

For real pain, there are veterinary anti-inflammatories — you may have heard of Previcox, Deramaxx, or Rimadyl. They can work well, but they’re prescription for a reason: they’re meant for shorter-term use, they can cause vomiting, diarrhea or liver issues, and your vet will usually run bloodwork before and during. The honest answer is to work with your vet on both what’s causing the pain and what’s safe for your particular dog. If your dog is hurting or limping, get it diagnosed — don’t guess.

Dr. Randall

Earlier than most people expect. Some cats start showing signs at two or three — they’re aggressive jumpers and hard on their joints, and outdoor cats especially take more wear. But by around seven, the average cat begins showing degenerative joint disease, often in the hips.

The tricky part is how easy it is to miss. Owners assume the cat is just “slowing down with age,” when really the joints hurt — so she stops jumping up on the bed or the windowsill. That change in behavior is usually the first real sign. One critical safety note: never give cats human pain relievers. Tylenol-type products and NSAIDs are dangerous — even fatal — to cats. For everyday care, keep the nails trimmed, keep her gently active, and if you’re seeing these signs, have your vet take a look.