Chicago Truck Accident Traumatic Brain Injury Attorney

Traumatic brain injury is not a single diagnosis — it is a spectrum, and the name attached to a patient’s diagnosis often shifts as the clinical picture develops.

• Concussion (mild TBI) — brief loss of consciousness or disorientation, transient amnesia, post-concussive symptoms that can persist for weeks or months. "Mild" by grading standard, not by life impact.
• Post-concussive syndrome — headaches, dizziness, concentration and memory deficits, mood changes, sleep disruption, and light/noise sensitivity extending beyond the expected recovery window.
• Diffuse axonal injury (DAI) — shearing damage to neuronal axons produced by rotational forces. Often not visible on CT. Revealed by diffusion tensor imaging and neuropsychological deficits.
• Focal contusions, hemorrhages, and hematomas — bleeding in or on the brain, usually visible on CT. May require emergency neurosurgical intervention.
• Moderate to severe TBI — prolonged loss of consciousness, GCS below 13, extended post-traumatic amnesia. Typically produces lasting cognitive, behavioral, and physical deficits.
• Penetrating TBI — direct skull or brain penetration by debris. Rare in truck crashes but devastating when it occurs.

Diagnosis begins in the emergency department. The Glasgow Coma Scale score within the first hour is a foundational data point, along with duration of loss of consciousness and post-traumatic amnesia. CT imaging rules out bleeds and fractures; if initial CT is negative but symptoms persist, MRI — including diffusion-tensor or susceptibility-weighted sequences — is the next diagnostic tool. Longitudinal neuropsychological evaluation, performed by a PhD neuropsychologist at 3-, 6-, and 12-month intervals, produces the objective record of cognitive deficit that a jury can evaluate.

Two categories of evidence anchor a TBI case. Imaging — CT, MRI, DTI — documents structural injury. Neuropsychological testing — a battery of standardized cognitive, memory, executive-function, and emotional-regulation instruments — documents the functional impact. Together they allow a defensible expert narrative to connect the crash mechanism to the specific deficits the plaintiff now lives with.

In cases where standard imaging is unremarkable, diffusion tensor imaging has become increasingly admissible in courts across the country as a method of detecting the microstructural damage characteristic of DAI. Courts have varied in their Daubert/Frye analysis; Illinois courts have generally admitted DTI where an appropriately qualified expert can explain its validation and limits.

A TBI case is not valued off of medical bills to date. It is valued off of the projected lifetime cost of the plaintiff’s care, and the plaintiff’s diminished earning capacity. A life-care planner — often a rehabilitation nurse or vocationally-credentialed planner — develops the projection, which typically includes:

• Ongoing neurological and neuropsychological follow-up.
• Continuing therapies — physical, occupational, speech, cognitive rehabilitation.
• Attendant care, ranging from periodic aide support to 24-hour skilled nursing.
• Home modifications and adaptive equipment.
• Psychiatric care and medication management.
• Lost earning capacity, developed by a vocational economist based on pre-crash earnings trajectory and post-crash functional capacity.
• Family burden and case-management costs over the plaintiff’s lifetime.

The minimum insurance requirement for interstate motor carriers — $750,000 under 49 CFR § 387.9 — is a floor, not a ceiling. Most carriers of any size carry $1 million primary with stacked excess layers reaching $5M–$25M or more. Catastrophic TBI cases routinely trigger multiple policies across multiple defendants: the motor carrier, the trailer owner, the shipper or broker, and any vicarious or independent-liability party in the chain. Identifying every policy within the first 30 days is part of our opening investigation.

Every TBI case runs on two parallel tracks: the liability investigation and the medical development. On the liability side — spoliation letters, ECM and ELD preservation, FMCSA SAFER pulls, carrier discovery, accident reconstruction. On the medical side — coordination with treating neurologists, neuropsychological evaluation, life-care planning, and vocational-economic projection.

TBI is frequently paired with other catastrophic outcomes — see spinal cord injury and our discussion of driver fatigue as a leading mechanism. Call Zayed Law Offices for a free consultation. We work exclusively on contingency and take no fee unless we recover for you.