Biomechanics of Traumatic Brain Injury
San Francisco Brain Injury Attorney
Traumatic brain injury (TBI), a closed-head injury, can occur in one of
two ways. The first is when the head is violently subjected to an external
impact, like when the head is struck, or if the head strikes an object.
The second is when the head is subjected to a sudden acceleration and
stop. This is commonly seen in rear-end vehicle collisions where a sudden
acceleration and deceleration whips the head forward and back.
There are three major traumas which can contribute to a traumatic brain injury:
- Impact of the brain against the skull
- Shear between the layers of the brain (diffuse axonal injury)
Have you or a loved one suffered a catastrophic brain injury in San Francisco?
Call (415) 688-2176 to speak with an attorney from Scarlett Law Group.
Skull-Impact Brain Injury
Depending on the source of the impact or from what direction it occurred,
the brain can slam against the inside of the skull if the head is hit
hard enough. In situations such as rear-end accidents or other sources
that cause the head to move back, the brain may resist movement, creating
a pocket of space within the skull. As the force of the impact advances,
a centrifugal force lifts the brain, creating a greater space. This force,
coupled with inertia, causes the brain to impact with the skull. The inner
contours of the skull are not smooth like the outside, and are characterized
by sharp protuberances made of bone. When the brain collides with these
protuberances, the brain may become torn and bruised, resulting in a serious
Diffuse Axonal Injury
Different from the type of trauma that can occur after a direct impact,
the brain may also sustain injury through a shear, often referred to as
a diffuse axonal injury, which is based on rotational acceleration/ and
deceleration. In the case of a shear, when the head is rapidly accelerated
and decelerated, one layer of the brain can slide onto another. This is
caused by the difference in the density of the layers. When this occurs,
axons that cross junctions between different parts of the brain are stretched
between areas of differing density. Two out of every three Diffuse Axonal
Injury lesions occur in areas other brain where white and gray matter
meet. In most cases, the damage of the axons is diffuse and the degeneration
process occurs throughout various areas of the brain rather than in specific
clusters. This type of diagnosis does not show up well on CT scans and
usually requires an MRI scan to check for bleeds in the cerebral cortex
or corpus callosum. For this reason, most diffuse axonal injuries are
considered “mild” traumatic brain injuries.
When mass moves rapidly through a fluid, the pressure ahead of the mass
is higher than the pressure behind it. In areas of low pressure, like
the space behind the mass, vapor-filled bubbles can form. When the mass
returns in the opposite direction, these bubbles can collapse, causing
Often, these types of brain injuries are found on the opposite side of
where the impact to the head occurred. Cavitation is the most commonly
accepted way to explain this kind of injury, which is known as “countre-coup,”
or “against the blow.”
Aggressive Representation for Victims & Families Affected by TBI
The San Francisco personal injury lawyers at Scarlett Law Group have fought
for the rights of victims of TBI and other catastrophic injuries for almost
20 years. We have successfully recovered millions of dollars for our clients
by providing high quality, knowledgeable, and fervent advocacy. We understand
that when tragedy strikes, dealing with life in the aftermath of an injury
can be overwhelming. That is why it is our goal to help victims and their
families receive the compensation they deserve so to that they can put
their lives back together.
We have what it takes to achieve success for your case.
Contact us today to find out more about how we may be able to help.