The holder device positioning showed a better pelvic symmetry ( P 0.05). The results showed a random distribution of right and left pelvic tilting, patella lateral or medial displacement, and hip subluxation categories in both samples ( P > 0.05). The variables studied were pelvic tilting, patella displacement index, Norberg angle (NA), and subluxation hip category. In this study, the technical quality of VDHE radiographs and hip measurements was compared in 65 dogs radiographed twice, one with the common veterinarian manual restraining and the other obtained using a hind limb holder device, without the veterinarian within the X-ray room. The veterinarian exposition to ionizing radiation is inevitable. This view normally is performed with manual restraining of the dog to obtain radiographs with acceptable technical quality. The radiographic ventrodorsal hip extended (VDHE) view is used worldwide to select the better animals for breeding. Hip dysplasia (HD) is an important hereditary orthopedic disease in the dog associated with osteoarthritis and inadequate welfare for affected animals. 4Department of Veterinary Science, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.3Department of Animal Science, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal.2CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, Vila Real, Portugal. 1Faculty of Veterinary Medicine, Lusófona University, Lisbon, Portugal.Ana Santana 1,2 Sofia Alves-Pimenta 2,3 João Martins 1,2 Bruno Colaço 2,3 Mário Ginja 2,4 *
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