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A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
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Helmet Usage Reduces Serious Head Injury Without Decreasing Concussion After Bicycle Riders Crash.

Edward J Alfrey1, Michelle Tracy2, Justin R Alfrey3

  • 1Adjunct Clinical Professor of Surgery, Stanford University, Stanford, California; Department of Surgery, Marin Health Medical Center (Formerly Marin General Hospital), Greenbrae, California; Chair, Department of Surgery, Medical Director for Trauma Services, Marin Health Medical Center, Greenbrae, California; Trauma Services, Marin Health Medical Center, Greenbrae, California.

The Journal of Surgical Research
|September 15, 2020
PubMed
Summary
This summary is machine-generated.

Bicycle helmets significantly reduce serious head, skull, and facial fractures in crashes. However, helmets did not prevent concussions in this study population.

Keywords:
Bicycle crash victimsConcussionHelmet usage

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Area of Science:

  • Trauma Surgery
  • Public Health
  • Orthopedics

Background:

  • Bicycle-related injuries pose a significant public health concern.
  • The effectiveness of bicycle helmets in preventing head injuries remains a subject of ongoing research.
  • A specialized trauma center observed a high incidence of bicycle crash victims.

Purpose of the Study:

  • To analyze the types of injuries sustained by bicycle riders involved in crashes.
  • To determine the role of helmet use in mitigating head injuries among these patients.
  • To compare injury patterns between helmeted and non-helmeted riders.

Main Methods:

  • A retrospective analysis of 906 bicycle crash victims over a 9-year period.
  • Comparison of injury data between riders who wore helmets (701) and those who did not (205).
  • Statistical analysis using linear regression and ANOVA to assess injury differences (P ≤ 0.05).

Main Results:

  • The most frequent injuries included concussion, rib fractures, clavicle fractures, facial fractures, and cervical spine fractures.
  • No significant difference in concussion rates was observed between helmeted and non-helmeted riders (42.6% vs. 42.0%).
  • Helmet use was associated with significantly fewer facial fractures (9.5% vs. 17.0%), skull fractures (1.1% vs. 4.4%), and serious head injuries (0.85% vs. 3.9%).

Conclusions:

  • Bicycle helmets are effective in reducing the severity of head injuries, including skull and facial fractures.
  • Despite helmet use, concussions remain a common injury among bicycle crash victims.
  • The study highlights the protective benefits of helmets against severe head trauma, but not necessarily mild traumatic brain injury like concussion.