Abstract
Juvenile Pubic Symphysiodesis (JPS) was performed in five puppies with hip dysplasia at a litter before 16 weeks old. PennHIP radipgraphy (University of Pennsylvania) with measurement of distraction index (DI), dorsal acetabular rim angle (DARA) with radiographs of dorsal acetabular rim view and Norberg Angle with OFA Hip view were carried out in these cases before surgery and 30 weeks old. In bilateral joints of all cases, DI did not change at 30 weeks old. But DARA was decreased and Norberg Angle was increased after surgery. No abnormality of hip joint was observed in these patients at 3 years old on a CT examination.