The seat base hinged forwards in the impact and this, combined with the intruding instrument panel, led to the tops of the dummy's
tibias striking the facia, leading to very high displacements in the knees.
The tumor can
strike any bone, including the ribs, mandible and spine, but the most common sites include the ulna and radius of the wrist, and the long limb bones, which include the femur, humerus and
tibia.