While most mild traumatic brain injury patients recover fully (think Jason Witten, back on the football field a week after a concussion diagnosis), a significant percentage experience permanent impairments related to the traumatic brain injury. Experience has shown that many injured workers in Texas who suffer from traumatic brain injuries are certified to have little or no permanent impairment resulting from their injury. It may be that medical providers are not aware of the methods available to rate brain injuries under the fourth edition of the AMA Guides To The Evaluation of Permanent Impairment.All Rights Reserved