Diagnostic imaging of hip dysplasia in the Kintamani dog FS Murtiningrum1,2- RH Soehartono3- S Widodo4- D Noviana2,3
1 Animal Biomedical Science, Graduate School of IPB University, Bogor, Indonesia
2 Diagnostic Imaging Centre, Animal Teaching Hospital, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
3 Division of Surgery and Radiology, Department of Clinic, Reproduction, and Pathology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
4 Division of Internal Medicine, Department of Clinic, Reproduction, and Pathology, Faculty of Veterinary Medicine, IPB University, Bogor, Indonesia
Abstract
Diagnostic imaging was important modalities for the preliminary diagnosis of hip dysplasia in dogs. The main objective of this study was to determine the radiographic interpretation method in diagnosing hip dysplasia in Kintamani dogs. Hip-extended radiography was the most used position for hip dysplasia and osteoarthritis assessment. A properly positioned hip-extended radiograph was useful as a screening tool for hip dysplasia and for the detection of osteoarthritis but may not adequately represent the degree of hip laxity, therefore the Norberg angle was used to measure the degree of hip dysplasia. The Norberg angle was calculated by measuring the angle between a line that connects the center of the femoral head between the left and right hips and a line that connects the center of the femoral head with the lateral tip of the cranial acetabular rim. A larger angle indicates a deeper acetabulum and a more congruent hip, whereas a smaller angle is consistent with an increased degree of subluxation. Complete knowledge of hip parameters was needed in determining the prognosis of hip dysplasia and supporting efforts to breed the Kintamani dog as the world^s first native Indonesian dog.
Keywords: diagnostic imaging, hip dysplasia, Kintamani dog, Norberg angle
