Table 4 Association between radiographic measures of cervical spine and degenerative cervical myelopathy.
DCM (−) | DCM (+) | P-value | |
|---|---|---|---|
Men | |||
N | 316 | 3 | |
Age, y | 67.4 ± 0.8 | 64.0 ± 8.0 | 0.67 |
Body mass index, kg/m2 | 23.7 ± 0.2 | 20.5 ± 2.0 | 0.11 |
Diameter of cervical spinal canal | 14.8 ± 0.1 | 13.5 ± 0.8 | 0.11 |
KL grade (≥3) % (N) | 80.1 (253) | 100 (3) | 0.49 |
KL grade (≥4) % (N) | 54.1 (171) | 33.3 (1) | 0.39 |
Anterior spondylolisthesis, % (N) | 6.0 (19) | 0 (0) | 0.66 |
Posterior spondylolisthesis, % (N) | 12.3 (39) | 100 (3) | <.0001 |
Women | |||
N | 617 | 23 | |
Age, y | 65.7 ± 0.5 | 71.1 ± 2.8 | 0.06 |
Body mass index, kg/m2 | 23.0 ± 0.1 | 24.4 ± 0.8 | 0.08 |
Diameter of cervical spinal canal | 14.1 ± 0.04 | 13.1 ± 0.2 | <0.0001 |
KL grade (≥3) | 79.4 (490) | 87.0 (20) | 0.98 |
KL grade (≥4) | 47.5 (293) | 65.2 (15) | 0.21 |
Anterior spondylolisthesis, % (N) | 6.3 (39) | 4.4 (1) | 0.7 |
Posterior spondylolisthesis, % (N) | 8.4 (52) | 21.7 (5) | 0.03 |
