How do you fix Spraddle legs?

What you Do to Treat Spraddle Leg. What you need to do is hobble the chick's legs. The easiest way is to cut a thin piece of Vetrap (approximately 1/4" wide and 5" long) and loosely wrap it around each leg, connecting the ends in the middle, about an inch apart, in sort of a figure eight.

Is Spraddle leg fatal?

Regardless of the cause, treatment is the same and, without fixing, splay leg can prevent the chick from walking and can be fatal if the chick can't move to keep itself warm or get to the feeder and drinker. Luckily, it's very treatable with some vet wrap and a little chicken physical therapy.