Dog suspected fracture: first response, safe transport and why never to splint

Quick answer

If you think your dog has broken a bone, the most useful thing you can do is not splint it. Home splints applied to a limb that is already swollen or already displaced act as a lever, turn closed fractures into open ones, and cause pressure sores that take longer to heal than the fracture did.

The second thing to understand is that the fracture is rarely what kills a dog. Whatever broke the bone, a car, a fall, a fight, a gate, also had the force to bruise a lung, tear a diaphragm, bleed into an abdomen or rupture a bladder. Those are what the first hour is really about. Check breathing and gum colour first, keep the dog still, and get to a vet.

Stillness, warmth and a flat surface do more for a suspected fracture than any bandage you can improvise.

• Do not splint. Support and immobilise the whole dog instead of the limb.
• Check breathing effort and gum colour before you look at the leg.
• Never give human painkillers. Ibuprofen and paracetamol cause ulceration, kidney failure and liver failure in dogs.
• Even a friendly dog bites when a fractured limb is touched. Plan for that before you move it.
• A dog that cannot use both hind legs may have a pelvic or spinal injury and must be moved flat, not carried against your chest.

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Never give paracetamol, ibuprofen, aspirin, or any human painkiller to a dog.

Dogs metabolise these drugs very differently from people. Ibuprofen and related anti-inflammatories cause stomach and intestinal ulceration and acute kidney injury at doses owners consider trivial. Paracetamol damages the liver and red blood cells. Beyond the direct harm, these drugs interfere with the anti-inflammatory and pain relief the vet will need to use, which can delay treatment on the day it matters most. If your dog is in pain, that is a reason to travel now, not a reason to open the medicine cupboard.
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Decide in 60 seconds

What breaks, and what the break usually comes with

Most fractures in pet dogs come from three sources: road traffic, falls from height including from arms and furniture, and dog-on-dog trauma. All three deliver force to the whole body, and the limb is simply the part you can see.

Blunt chest trauma bruises the lungs. That bruising takes hours to reach its worst, which is why a dog that seemed only slightly winded at the roadside can be in respiratory difficulty at midnight. Air can also leak into the chest cavity and press the lungs down, or the diaphragm can tear and let abdominal organs into the chest.

Blunt abdominal trauma tears the spleen, the liver, or the bladder. A dog bleeding into its abdomen looks pale, feels cold at the ears and paws, has a fast weak pulse, and becomes progressively flatter over an hour or two. A ruptured bladder produces a dog that has not urinated since the accident and becomes unwell over a day.

Head injury shows as an altered level of awareness, unequal pupils, or a dog that seems stunned and then normal and then stunned again.

This is why every reputable emergency approach checks airway, breathing, circulation and consciousness before it looks at the fracture. The leg is not going anywhere. The chest might.

Checking the things that matter first

Breathing.

Watch the chest and abdomen from the side. Look at how fast, how hard, and whether the effort is at the top of the breath or the bottom. Open-mouth breathing in a dog that is not hot or excited is abnormal, and a dog that will not lie down and keeps its elbows out is telling you it cannot breathe lying flat.

Gum colour and refill.

Lift a lip. Healthy gums are pink and moist. Press a fingertip on the gum for a second and release; the blanched spot should return to pink almost immediately. Pale, white, grey or blue gums, or a spot that stays blanched, means blood is not getting where it should. Pigmented gums make this hard, so use the inner eyelid or the pale skin inside the thigh instead.

Responsiveness.

Does the dog know you are there. Does it track your hand. Has that changed since you found it.

Gum colour and refill are the fastest home check for internal bleeding, and they take ten seconds.

Why home splinting goes wrong

A splint has one job: to stop movement across the fracture. Movement is only stopped if the splint spans the joint above and the joint below the break. On a dog, the joint above a femoral or humeral fracture is inside the body wall, so those cannot be splinted at all, and an attempt simply adds a rigid lever to a mobile fragment.

Even below the elbow and stifle, where splinting is theoretically possible, the practical problems are severe. Fracture ends are sharp. Manipulating a limb to align it, on a conscious animal in pain, drives those ends through muscle, through blood vessels, and through skin, which converts a closed fracture into an open one and changes the treatment from a straightforward repair to an infected wound.

Padding is the other failure. Veterinary limb bandages use a great deal of soft padding precisely because a limb continues to swell for hours after injury. A firm wrap applied at the roadside becomes a tourniquet by the time you reach the practice, and pressure necrosis over the point of the hock or the accessory carpal pad is a well recognised complication that outlasts the fracture.

The one exception is bleeding. Direct pressure over a bleeding wound is correct and it is different from splinting.

Moving the dog without making it worse

Small dogs.

Slide a folded blanket or towel under the dog rather than scooping it up. Support the chest and the pelvis together so the spine does not sag, and keep the injured limb uppermost if you can do that without twisting the body. A sturdy box or a carrier lined with a towel travels better than a lap.

Large dogs.

Use a rigid flat surface if there is any suspicion of a pelvic or spinal injury: an ironing board, a shelf, a rigid sledge, a door. Failing that, a blanket used as a stretcher with two people lifting together, one at the shoulders and one at the hips, keeps the body in line. Do not let the dog walk to the car on three legs if there is any doubt about the pelvis or spine.

Muzzling.

A dog in severe pain will bite, and it will bite the person handling the sore part, which is you. A soft muzzle, a strip of bandage tied around the jaws, or even a towel over the head reduces the risk. Do not muzzle a dog that is vomiting, struggling to breathe, has a flat face, or has a head or facial injury, because you will obstruct the only airway it has.

Warmth.

An injured dog loses heat quickly, and cold worsens shock and blood clotting. A blanket over the body is helpful. Direct heat sources are not, because a shocked dog cannot feel a burn.

A rigid base, a blanket, gauze and a second pair of hands beat any improvised splint.

What looks like a fracture and is not

A dog holding a leg up is not proof of a break, and the alternatives change what happens next.

Cranial cruciate ligament rupture produces sudden non-weight-bearing lameness of a hind limb, often during ordinary exercise, in middle-aged and often overweight dogs. There is no deformity and the dog will usually toe-touch within a day or two.

Luxating patella in small breeds gives an intermittent skipping lameness where the dog carries the leg for a few strides and then uses it normally.

Joint luxation, especially of the hip or elbow, produces a leg held in a strange position, which owners reasonably read as a break. It needs radiographs to tell apart.

Panosteitis in young large-breed dogs gives shifting lameness with obvious pain on pressing the long bones and no history of trauma.

Immune-mediated polyarthritis produces stiffness in several limbs, fever, and reluctance to move at all.

A foot problem is the commonest of all: a torn nail at the bed, a grass seed or glass in a pad, a burn from hot pavement, a bee sting between the toes. Look at the foot before you assume the leg.

Pathological fracture. A large or giant breed dog that breaks a bone in a way that does not match the force applied, especially near the wrist, shoulder or stifle, may have an underlying bone tumour that thinned the bone. Mention any previous limping in that limb when you get to the vet.

What never to do

Do not attempt to straighten, pull, or reduce a deformed limb.

Do not clean, flush, disinfect or probe an open fracture. Cover it with a clean, dry, non-fluffy dressing and leave it alone.

Do not apply ice or heat to a fracture site. Neither helps and both distract from getting on the road.

Do not offer food or water. A dog that needs anaesthesia within the hour is safer with an empty stomach, and vomiting under sedation is a real risk.

Do not use adhesive tape, cling film or elastic bandage directly against skin or fur.

Do not let the dog rest for a day to see how it goes when there has been a road accident or a fall from height. The internal injuries are the ones that declare themselves late.

Do not take a photograph instead of leaving. Take it while someone else drives.

When to get help

Go immediately for any suspected fracture, and treat the following as reasons to travel without further assessment: visible bone or a wound over a deformed limb, inability to stand on both hind legs, dragging hind limbs, pale or grey gums, laboured breathing, a distended or painful abdomen, or a dog that will not settle at all.

Go the same day for a dog that is bearing no weight on a limb, even if it is bright, and for any lameness following a road accident or a fall from height however minor it looked.

Book an appointment for a limp that has not resolved within a day or two of rest, for any lameness in a puppy, and for shifting or recurring lameness in an adult dog.

Bring the time and mechanism of the injury, whether the dog was seen to be hit or found afterwards, whether it lost consciousness, whether it has urinated since, its current weight, all medications and supplements, and any history of limping in that limb before today. If it is a large or giant breed and the injury seems out of proportion to the force involved, say so.

Recovery is measured in weeks of restricted exercise, so plan the confinement space before you bring the dog home.