Abstract
Fourteen hip joints of 8 juvenile dogs with hip dysplasia were evaluated by radiographic and arthroscopic examinations. The purpose of the study was to evaluate the relationship between radiographic and arthroscopic findings. Radiographic hip osteoarthritis grades were obtained from the ventrodorsal hip-extended view. The distraction index (DI) for each hip joint was calculated from the compression and distraction views. Articular cartilage pathology, the condition of the ligament of the femoral head and the synovium were evaluated by arthroscopy. Results showed that dogs with higher DIs were likely to have more severe cartilage injuries in the hip joints. Hip arthroscopy was useful for evaluating joint pathology and the findings seem to correlate with joint laxity in young dogs with hip dysplasia.