Whiplash Injury: Diagnostic Tests

Obligatory medical device diagnostics.

  • Radiographs of the cervical spine in two planes, additional oblique/target radiographs if necessaryIndications: following risk factors directly indicative of imaging: Age ≥ 65 years, dangerous mechanism of trauma, paresthesias (insensitivity) of the extremities; see also below under further indications: Exclusion of cervical spine injury clinically and without imaging.

Optional medical device diagnostics – depending on the results of the history, physical examination, laboratory diagnostics and mandatory medical device diagnostics – for differential diagnostic clarification.

  • Computed tomography of the skull (cranial CT, cranial CT or cCT) and cervical spine – in case of severe cervical spine acceleration trauma (cervical spine CT), neurological deficit, macroscopic soft tissue lesions or space-occupying lesions, abnormal conventional radiographic findings
  • Magnetic resonance imaging (MRI) of the cervical spine – in case of suspected soft tissue damage (ligament injuries, hematoma (bruise), edema (water retention)), severe cervical spine acceleration trauma (cervical spine CT), neurological deficit, macroscopic soft tissue injury or space requirement.
  • Doppler sonography (ultrasound examination that can dynamically visualize fluid flow (especially blood flow)) – if vascular injury is suspected.
  • Diagnostics in cases of reasonable suspicion of injury to the nervous system or auditory or vestibular apparatus [S1 Guideline].
    • Derivation of somatosensory evoked potentials (SEP; damage to the peripheral or central sensory system).
    • Magnetically evoked motor potentials (MEP; damage to the peripheral or central motor system).
    • Electromyogram (EMG, useful after 2-3 weeks; damage to the peripheral motor system).
    • Nerve conduction velocimetry (NLG, F-wave; delineation of peripheral nonradicular nerve lesions).
  • Sonography (ultrasound), excretory urogram, tonometry (bladder pressure measurement) in persistent micturition disorder (bladder emptying disorder) – to assess bladder function.

* S1 guideline

Further notes

  • According to a meta-analysis, the benefit of additional MRI after blunt trauma to the spine is questionable: in 5,286 patients with blunt trauma to the cervical spine and negative CT findings, additional findings were found in 792 cases (= 15.0%); additional unstable injuries were found in only 16 cases not detected on CT (= 0.30%).
  • Exclusion of cervical spine injury clinically and without imaging with sufficient certainty according to the Canadian C-Spine-rule study (sensitivity of 100%) according to the following criteria:
    • <65 years
    • No dangerous accident mechanism such as
      • Fall from a height > 90 cm
      • Axial force impact (e.g. diving accident)
      • Accidents involving motorized recreational equipment, motorcycles or bicycles,
      • High-speed accidents (> 100 km/h, with rollover, ejection).
    • No paresthesias in the extremities.
    • Sitting in the emergency room
    • Ambulatory (at any time after injury)
    • Examination: 45° neck rotation to the left and right possible.