Fig. 2

Computed tomography of the hip in a transverse plane of a 5-month-old Transmontano Mastiff dog at an early stage of hip dysplasia. An increase in hip laxity is translated into a reduced contact between the femoral head and the acetabulum under normal load bearing. The left hip joint shows a degree of subluxation more evident than the contralateral hip, resulting in a diminished femoral head-acetabulum contact area