Stabilization of subaxial cervical spinal injuries

Area of Science:

• Orthopedic Surgery
• Spinal Trauma
• Radiology

Background:

• Subaxial cervical spine fractures present a challenge in determining the necessity of surgical versus external orthotic stabilization.
• Predictive factors for nonoperative management failure in these fractures remain incompletely defined.

Purpose of the Study:

• To identify specific fracture characteristics on initial roentgenograms that predict the success or failure of nonoperative management for subaxial cervical spine injuries (C3-C7).
• To guide treatment decisions between external orthoses and surgical stabilization based on injury characteristics.

Main Methods:

• Retrospective review of 64 consecutive patients with C3-C7 subaxial cervical spine fractures.
• Analysis of admission roentgenograms to identify key fracture characteristics, specifically severe ligamentous injury (SLI) and severe vertebral body injury (SVBI).
• Correlation of identified characteristics with the success or failure of nonoperative stabilization.

Main Results:

• The presence of severe ligamentous injury (SLI), severe vertebral body injury (SVBI), or both, strongly correlated with failure of nonoperative stabilization (p < 0.001, p = 0.002, p = 0.004, respectively).
• All fractures without evidence of SLI or SVBI were successfully managed with external cervical orthoses.
• Injury characterization by SLI and SVBI effectively predicted treatment outcomes.

Conclusions:

• Severe ligamentous injury and severe vertebral body injury are critical indicators for predicting nonoperative management failure in subaxial cervical spine fractures.
• Absence of SLI and SVBI suggests successful stabilization with external orthoses.
• These findings provide a clear basis for selecting appropriate management strategies, differentiating between external orthotic and surgical stabilization.