[header] How to treat a sprained ankle on a dog [title] Understand your dog's anatomy. [step] Dogs actually stand and walk on the toes of their front and rear legs. When a dog is standing, you will see its ankle on its hind leg between the knee and the toes. 
This is similar to where a your ankle is when you stand on your toes. [substeps] Dogs do not have ankles on their front legs, just as you don't have them on your arms.