I have had two Lab bitches from England. Both had front dew claws and were born without rear dew claws which is typical for the breed. Some Labs do have rear dew claws though.
I hunted the first one for 12 years without any dew claw problem of any type. It was just one more to trim on each foreleg when the time came.
My present six year old has hunted 6 years without any dew claw problem of any type. It is just one more to trim on each foreleg when the time comes
My six year old just had a litter. We did not remove the dew claws on any of those pups.
Generally speaking, the British don't remove front dew claws on Labs. It would be a fairly rare thing. Yet you don't hear of any big dew claw injury epidemic with Labs over there.
Their Royal College of Veterinary Surgeons sets their ethical and clinical standards for veterinary surgeons. From their website:
"27.26 Anatomically, the first digit of the fore limb is not a dew claw. Generally, the first digit of the fore limb is fully formed and has an important function. Not surprisingly dogs are often seen to use these ' thumbs ' exactly as you would expect - to help grasp food and other objects because they can be adducted, flexed or extended like any other digit, due to the bony articulation and the muscle attachments...
...27.28 The removal of the first digit of the hind limb (true dew claws) is justified in most circumstances.
27.29 The removal of the first digit of the fore limb is justified only if, in the veterinary surgeon’s professional opinion, the particular anatomy/appearance of the digits invites possible damage."
I almost lost an absolutely awesome male Lab that had his dew claws removed as a pup on a large icy pond many years ago. The cripple swam to the edge of the ice about 40 yards out with the Lab in pursuit. The cripple hopped up on the ice and the Lab tried to follow but the ice was so thin it kept breaking every time he tried to climb up. I was helpless. I couldn't swim out to him but I did get a boat underway from a long way off. He struggled for maybe 10 minutes. He had to be exhausted. He finally broke in to thicker ice and I watched another 4-5 minutes as he tried to pull himself up with his fore legs. I could actually see him rolling his forelegs inboard as if to get a grip with dew claws. Innate behavior? Happenstance? I'll never know. I really thought at this point he wouldn't make it. It's a soul crushing feeling, knowing that I sent him for the duck. However, with a SuperDog effort, he finally drove himself up on to the thicker ice. Rear legs kicking and front paws trying I guess. He picked up the duck, stood panting a bit and then made the retrieve. My best friend, the vet I hunt with, and I decided that day we were never removing anymore pup dew claws. I'd rather have to deal with a dew claw injury than lose a dog. The boat got there after the retrieve.
Yeah, that's a one in a thousand or million situation out on the ice. However, that's about how I view a dew claw injury too.
YMMV. Do what you like with your dogs. I'm just relating my actual experience with dew claws.