Abstract
Using the non-destructive CT section methods, the hip joint was observed in an adult carcass and late stage fetus of the orang-utan. The macroscopic dissection was also carried out in an adult carcass. The CT images pointed out that the late stage fetus did not possess the ligament of head of femur as well as in the adult. The ligament completely disappeared at least in the late stage fetus of the orang-utan. From the macroscopic observation in the adult, the two thick parts of the iliofemoral ligament, the thin pubofemoral ligament, and the well-developed ischiofemoral ligament were confirmed, however the ligament of head of femur was not also detected between the acetabulum and the head of the femur as described in some former studies. The CT images helped us to confirm the structure of the hip joint as a non-destructive method.
