Many Vets say sedated is best for positioning purposes. The hind limbs must be manipulated into a somewhat uncomfortable position. To ensure the dog is relaxed sedation may be needed.
That being said I have had 2 of my dogs hip rads done without sedation. These dogs are pets with no chance of being bred. I was taking rads for my own curiosity and did not actually send them away to be evaluated. They were checked by myself and other veterinary professionals. There was no need to send rads to OFA or Pen, healthy dogs with no breeding in thier future. I was able to get the dogs into proper position without sedation, not all dogs will tolerate this.
My male (first ever purchased from a breeder has BEAUTIFUL hips btw).
Until we meet again . . .
Bear(rescue)-GSD, my soul mate.
Kai-(rescue)GSD, my forever baby.
Kobie-Pomeranian, my tiniest dog with the biggest heart.