• Chang Duk Yuk, Tae Hwan Kim, Moon Soo Park, Seok Woo Kim, Ho Geun Chang, Ji Hee Kim, Jun Hyong Ahn, In Bok Chang, Joon Ho Song, and Jae Keun Oh.
• Department of Neurosurgery, Hallym University Sacred Heart Hospital, Anyang, Korea.
• World Neurosurg. 2019 Oct 1; 130: e709-e714.

ObjectiveWe sought to investigate the relationship between cervical cord compression and factors related to whole-spine sagittal balance.MethodsThis retrospective single-center study included patients who visited our clinic for the evaluation of lumbar pathology including trauma and degeneration. Patients aged 60-89 years who underwent whole-spine sagittal T2 scout magnetic resonance imaging and whole-spine radiograph between 2014 and 2018 were included in our study. We consecutively enrolled 100 patients for our study without any prejudice. We collected data on patient characteristics, diagnosis, cervical cord compression index (CCI), sagittal vertical axis (C7-S1, C2-7), and other parameters related to sagittal balance such as pelvic incidence minus lumbar lordosis. Pearson correlation coefficients were calculated to compare CCI with each whole-spine sagittal balance parameter.ResultsOf the 100 patients, 44 were men. The mean age was 74.21 years. On the basis of Pearson correlation coefficients, CCI showed the strongest positive linear correlation with C7-S1 sagittal vertical axis (r = 0.688; P < 0.01), followed by the C2-7 sagittal vertical axis (r = 0.563; P < 0.01).ConclusionsCervical cord compression is more likely to develop in patients with sagittal imbalance. It is important to use whole-spine radiograph and whole-spine T2 scout magnetic resonance imaging to analyze CCI in these patients.Copyright © 2019 Elsevier Inc. All rights reserved.

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