It is not uncommon for a dog or cat to fracture its forearm. The two bones that are usually involved are the radius and ulna. Depending on the severity of the fracture, it is either splinted or surgery is performed to stabilize the bones with plates or pins.
This pup had a mild fracture of the radius and ulna (forearm). Since young animals heal rapidly, and because the fracture was relatively stable, a special type of padded plastic splint was used to stabilize it. It will stay on for 4-6 weeks.
After the pup is sedated an anchoring tape is applied to prevent the splint from sliding off.
A heavy layer of cotton is wrapped around the leg, and the plastic splint is placed along the bottom of the leg outside this cotton layer.
Several layers of gauze are tightly wrapped over the cotton and plastic splint, and the initial anchoring tape is adhered on top of this gauze. This prevents the splint from sliding down.
A final layer of tape is wrapped over the gauze. This helps keep it dry, adds to the stability, and identifies this as a girl dog!
We can trace the progress of healing on a different dog ( a large Doberman puppy) with a radius and ulna fracture, by taking x-rays at 3 week intervals. This first x-ray shows his fracture, which he obtained by running into a table.
Here he is after his splint was applied. He is hiding his face because we used pink tape instead of blue (hey, that's all we had at the time).
Three weeks after the splint was applied a routine x-ray was taken to assess healing. Both the dark areas and white areas at the fracture site are normal stages in the healing process.
Six weeks after the fracture (and not a day too soon for his dad), the bone has not only healed, but it has remodeled making it smoother and anatomically more correct. This bone will continue to remodel for many months.
Surgical correction of a radius or ulna fracture frequently involves plates and screws or pins. It is a specialized surgery requiring meticulous placement of the fractured pieces.
If you look at this view of this pet's fracture it looks like a splint could be utilized for stability.
On this view of the same bones the severity of the fracture is obvious. Surgery is needed due to the amount of displacement at the fractured edges.
Here is a view of the bones after a plate has been applied surgically. As you can see from the fractured ends, the alignment is perfect.
Another x-ray gives you an indication of the size of the plate from the top. The amount of cotton padding around the splint can be visualized also.
He will need to wear this splint as additional support until the fracture heals. This will take up to several months.
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