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Early versus delayed reduction of cervical spine dislocation with complete motor paralysis: a multicenter study
Kosei Nagata1, Koichi Inokuchi2, Hirotaka Chikuda3
1Department of Orthopaedic Surgery, Tokyo Metropolitan Bokutoh Hospital, 4-23-15 Kotobashi, Sumida-ku, Tokyo, 130-8575, Japan. koseinagata1984@gmail.com.
Summary
Early reduction of cervical spine dislocation within 6 hours is crucial for better neurological recovery in patients with complete motor paralysis. Delayed reduction (over 6 hours) is associated with poorer outcomes.
Area of Science:
- Neurosurgery
- Trauma Care
- Spinal Cord Injury Research
Background:
- Cervical facet dislocation requires prompt reduction to prevent neuronal damage.
- Defining the optimal time window for early reduction in complete motor paralysis is critical.
Purpose of the Study:
- To establish the definitive time limit for early reduction in cervical spine dislocations with complete motor paralysis.
Main Methods:
- Retrospective cohort study of 30 patients with cervical spine dislocation and complete motor paralysis.
- Patients categorized into 'very early' (<4h), 'early' (>4-6h), and 'delayed' (>6h) reduction groups.
- Comparison of neurological outcomes, injury patterns, arrival times, and Injury Severity Score (ISS).
Main Results:
- 27% of patients achieved American Spinal Injury Association Impairment Scale Grades C-E recovery.
- Delayed reduction (>6h) correlated with poorer neurological outcomes compared to early (<6h) reduction.
- No significant difference in recovery rates between 'very early' and 'early' groups; injury pattern, arrival time, and ISS did not impact outcomes.
Conclusions:
- Early reduction of cervical spine dislocations (within 6 hours) is linked to favorable neurological outcomes.
- Reduction after 6 hours is associated with significantly worse neurological recovery.
