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The Relationship Between Preoperative Cervical Sagittal Balance and Clinical Outcome of Acute Traumatic Central Cord
Guang-Yu Xu1, Xiao Lu1, Yu-Xuan Zhang1
1Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China.
Objective:
To explore the sagittal radiological parameters related to clinical recovery of patients with acute traumatic central cord syndrome (ATCCS) and determine the diagnostic value of related variables.
Methods:
A retrospective review was performed of 104 patients with ATCCS. Six cervical sagittal balance parameters were collected: Cobb angle, T1 slope, neck tilt, thoracic inlet angle (TIA), C2-C7 sagittal vertex axis, T1 slope - C2-C7 Cobb angle. The patients were assigned to an ideal improvement group and poor improvement group according to their recovery rate. Receiver operating characteristic curve and area under the curve were used to evaluate the significant results of logistic regression and the optimal diagnostic value.
Results:
Preoperative and postoperative Japanese Orthopaedic Association scores indicated a good recovery after surgical intervention. Radiological findings revealed that neck tilt and TIA were risk factors for poor neurological improvement of patients with ATCCS. Area under the curve (95% confidence interval) values of neck tilt and TIA were 0.763 (0.660-0.866) and 0.749 (0.643-0.855), and cutoff values were 39.1° and 65.6°, respectively.
Conclusions:
Lower neck tilt and TIA are risk factors for poor outcomes in patients with ATCCS after surgery. Neck tilt <39° and TIA <66° had significant diagnostic value for poor prognosis.
