Yes, I have true clinodactyly of the 5th digit (pinky). Very short, definite bend, and instead of one crease at each joint like the other fingers, it has one crease between two joints like the thumb. I don't find it to be a problem in general. I tried teaching myself piano, and was gutted to discover that I physically couldn't play a true chord because my finger couldn't reach. Trying to type in fingerless gloves is also a nuisance, because the pinky just disappears in the glove.