12) The appendiceal transection in our case is in fact a contrecoup injury
due to the opposite primary side of the handlebar harmful contact, which was visible in the left part of the patient's abdomen.
It is suggested that either coup or contrecoup injury
has a role in the present case.
The mechanics of TBI follow that of coup contrecoup injury
Pulmonary parenchymal injury from blunt chest trauma can arise from several mechanisms, including direct compression, contrecoup injury
, shearing forces, or laceration from fractured ribs.
Dr Bolster said: "He had what is known as a contrecoup injury
which is virtually always associated with a fall.
It is known, however, that blows causing rotation of the brain produce shearing forces, which are tolerated more poorly than either coup or contrecoup injury