A confounding pediatric spinal cord injury: Anterior, central, or both?

Mara Martinez-Santori1, Anthony Kennedy2, Autumn Atkinson2,3

  • 1Department of Physical Medicine and Rehabilitation, McGovern Medical School at UTHealth, Houston, Texas, USA.

Insights

This case details an unusual pediatric spinal cord injury (SCI) with central cord syndrome symptoms but radiological signs of anterior spinal artery syndrome. Recovery patterns were atypical, highlighting diagnostic complexity in pediatric SCI.

Area of Science:

  • Neurology
  • Pediatric Medicine
  • Traumatology

Background:

  • Pediatric spinal cord injury (SCI) predominantly impacts the cervical region.
  • Central cord syndrome (CCS) typically results from hyperextension injuries in the lower cervical spine.
  • Anterior cord syndrome (ACS) is often caused by vascular infarction following hyperextension injuries.

Purpose of the Study:

  • To describe an unusual case of pediatric cervical SCI presenting with central cord syndrome clinically but radiological evidence of anterior spinal artery syndrome.
  • To explore potential etiologies for this atypical presentation, including the role of Chiari I malformation.
  • To highlight the complexities in diagnosing and predicting outcomes for pediatric SCI.

Main Methods:

  • Case report of a two-year-old male following a fall.
  • Clinical assessment of motor function and sensory deficits.
  • Magnetic Resonance Imaging (MRI) to evaluate spinal cord and associated structures.
  • Diagnostic workup for embolic sources (cardiac, hematologic) and angiography.
  • Observation of patient's recovery during inpatient rehabilitation.

Main Results:

  • The patient presented with flaccid upper extremities and dysesthesias, but preserved lower extremity strength, mimicking CCS.
  • Radiological findings revealed an anterior spinal artery infarct (C2-T3) with a C3 ligamentous injury and incidental Chiari I malformation.
  • Negative workup for emboli and normal angiography suggested trauma-induced vertebral artery compression by Chiari I malformation as a potential factor.
  • Motor recovery was atypical, with distal regaining of function (supination, wrist/finger flexion) rather than proximal-to-distal.
  • Impaired proprioception and balance affected gait, despite relative leg strength sparing.

Conclusions:

  • Pediatric cervical SCI diagnosis and prognostication are complex, with presentations and recovery patterns often deviating from classic descriptions.
  • This case underscores the importance of thorough evaluation for underlying conditions like Chiari I malformation in pediatric SCI.
  • Early transition to rehabilitation therapies is crucial for optimizing recovery in patients with SCI, regardless of atypical presentations.