Spinal Burst or Compression Fractures within Automotive Crashes Due to Vertical Force Components 970498

The purpose of this research was to present and analyze a previously unreported mechanism of injury within the automotive crash environment - spinal burst or compression fractures due to a vertical force component. Spinal burst fractures are comminuted fractures of the vertebral body which are often associated with retropulsed bone fragments into the spinal. Compression fractures are less traumatic fractures of the vertebral body with minimal comminution. Both fracture types can have varying degrees of neurologic deficit. The mechanism of injury is hypothesized to be a high energy compressive load along the axis of the spine initiated through the buttocks and pelvis or through torso augmentation (inertial loading of the lumbar spine by the torso).
Four crashes are presented as evidence of this injury mechanism within the automotive crash environment: two in the United States and two in Germany. All crashes involved a vertical force component to the wheels of the vehicle and subsequently to the occupants. Injuries included burst or compression fractures of the lumbar spine (3 cases) and the thoracic spine (1 case) with varying degrees of neurologic deficit. Injured occupants were males and females of various age (mean 30.5 ± 8 years), size, and physical condition. The range of axial loads experienced by the occupants in two of the cases was estimated between 10 and 20 Gs.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:

Injury Risk Assessment of Several Crash Data Sets


View Details


Assessment and Control of Dynamic Overshoot with Automotive Seating During Vertical Impacts


View Details


Biomechanical Experimental Studies of the Lumbar Spine Under Static and Dynamic Loading Conditions


View Details