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Updated: Jul 5, 2026

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Association between upper extremity injuries and side airbag availability.

Gerald McGwin1, Kayvon Modjarrad, Stefan Duma

  • 1Center for Injury Sciences at UAB, and Surgical Critical Care, Division of General Surgery, Department of Surgery, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA. mcgwin@uab.edu

The Journal of Trauma
|May 13, 2008
PubMed
Summary
This summary is machine-generated.

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Side airbags in cars increase the risk of moderate to severe upper extremity injuries, including dislocations, in side impact collisions. This finding highlights a potential trade-off in safety, balancing extremity injury risk against reduced head and thoracic harm.

Area of Science:

  • Traffic safety research
  • Injury biomechanics
  • Automotive engineering

Background:

  • Automotive airbags are increasingly used to reduce traffic fatalities.
  • Both front and side airbags have been associated with upper and lower extremity injuries.
  • This study investigates the specific risk of upper extremity injury in side impact collisions related to side airbag deployment.

Purpose of the Study:

  • To test the hypothesis that vehicle occupants in side impact collisions have an increased risk of upper extremity injury when vehicles are equipped with side airbags compared to those without.
  • To quantify the association between side airbag availability and upper extremity injury risk.

Main Methods:

  • Utilized data from the 1995-2004 Crashworthiness Data System (CDS) dataset.

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  • Compared the risk of upper extremity injury in side impact crashes between vehicles with and without side airbags.
  • Classified injury severity using the Abbreviated Injury Scale (AIS) score, 1990 Revision.

    • Main Results:

    • No overall association was found between side airbag availability and upper extremity injury risk (RR 1.08; 95% CI 0.85-1.36).
    • However, the risk of moderate or serious upper extremity injury (AIS score ≥2 or ≥3) was significantly increased (RR 2.75 and RR 2.45, respectively).
    • The risk of dislocation was significantly higher (RR 2.42), while the risk of fracture showed no difference (RR 1.00).

    Conclusions:

    • The forces from side airbag deployment may contribute to the observed increase in upper extremity injuries.
    • This elevated risk of extremity injury needs to be considered alongside research indicating reduced risks for head and thoracic injuries.
    • The findings suggest a complex risk-benefit profile for side airbag technology.