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  4. Patterns of spinal cord injury in automobiles versus motorcycles and bicycles

Patterns of spinal cord injury in automobiles versus motorcycles and bicycles

Spinal Cord Series and Cases, 2020 · DOI: https://doi.org/10.1038/s41394-020-00324-y · Published: July 30, 2020

Spinal Cord InjuryTrauma

Simple Explanation

This study investigates spinal cord injuries (SCI) resulting from car, motorcycle, and bicycle accidents. The goal was to identify injury patterns and occurrence rates for each vehicle type. The study found that motorcycle accidents are more likely to cause thoracic (mid-back) SCIs, while car and bicycle accidents tend to result in cervical (neck) SCIs. Thoracic injuries were also more likely to be 'motor complete,' meaning a greater loss of movement. Motorcycles have a much higher rate of SCI compared to cars, even when considering the number of registered vehicles and licensed drivers. This suggests motorcycles pose a greater risk for SCI in accidents.

Study Duration
10 Years
Participants
398 SCI cases
Evidence Level
Retrospective case series

Key Findings

  • 1
    Motorcycle accidents had a higher percentage of thoracic SCIs compared to automobiles, which resulted in more cervical SCIs.
  • 2
    Thoracic SCIs were more likely to be motor complete (AIS A/B) than cervical or lumbar injuries, regardless of the mechanism of injury.
  • 3
    The relative rate of occurrence of SCI for motorcycles is estimated to be much higher (7-400 times) than for automobiles based on vehicle registration and driver's license data.

Research Summary

This study examined the patterns of spinal cord injuries (SCIs) resulting from automobile, motorcycle, and bicycle accidents. Data were collected from a retrospective chart review of SCI consults at a rehabilitation center in Los Angeles County between 2003 and 2013. The study found that motorcycle accidents were associated with a higher percentage of thoracic SCIs, while automobile and bicycle accidents resulted in more cervical SCIs. Thoracic SCIs were also more likely to be motor complete. The authors concluded that the relative rate of SCI occurrence for motorcycles is significantly higher than for automobiles. This information may help physicians anticipate and identify possible SCIs based on the mode of transport involved in an accident.

Practical Implications

Improved Safety Measures

The findings can inform the development of targeted safety measures for motorcyclists to reduce the risk of thoracic spinal cord injuries.

Clinical Awareness

Physicians should be aware of the higher likelihood of thoracic SCI in motorcycle accidents and cervical SCI in automobile/bicycle accidents when assessing patients.

Further Research

The study highlights the need for further research into the biomechanics of motorcycle accidents and the effectiveness of different types of helmets in preventing cervical spine injuries.

Study Limitations

  • 1
    Retrospective nature of the study.
  • 2
    Potential limitations in data recording and accuracy.
  • 3
    Susceptibility to limitations in patient pool and referral patterns.

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