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Traumatic instability in the previously fused cervical spine
1Department of Orthopaedic Surgery, University of Florida College of Medicine, Gainesville 32610.
Journal of Spinal Disorders
|December 1, 1991
Summary
Preexisting cervical spine fusions can lead to delayed diagnosis and acute instability at adjacent levels. This study highlights unique fracture patterns and altered anatomy in patients with fused cervical segments.
Area of Science:
- Orthopedic Surgery
- Spinal Fusion
- Traumatology
Background:
- Cervical spine fusions are known to cause chronic adjacent segment disease.
- This study investigates the link between cervical fusion and acute traumatic instability.
Observation:
- Fifteen patients with cervical fractures and prior cervical fusion were reviewed over 12 years.
- Fractures occurred adjacent to the fused segments, within one or two levels.
- Diagnostic challenges arose due to altered anatomy and atypical fracture patterns.
Findings:
- Preexisting cervical fusions predispose patients to acute, traumatic instability at adjacent levels.
- Fusion significantly delays diagnosis of cervical fractures.
- Fracture patterns differ between upper and lower cervical spine fusions.
- Fusion presence impacts treatment decisions.
Implications:
- Awareness of altered anatomy and fracture patterns is crucial for timely diagnosis in fused patients.
- Understanding these associations can improve management strategies for traumatic cervical spine injuries.
- This research underscores the biomechanical consequences of cervical fusion on adjacent spinal segments.