Analysis of Cervical Spine Alignment Change after Modified Kurokawa Cervical Laminoplasty in the Patients with Cervical Myelopathy and Straight Cervical Spine
Table 1
Cervical radiological parameter changes.
Preoperative
2 years follow-up
Change
value
Cervical alignment (°)
0.0098
C2/3 IVDA (°)
0.0114
C3/4 IVDA (°)
0.0024
C4/5 IVDA (°)
0.0328
C5/6 IVDA (°)
0.0477
C6/7 IVDA (°)
0.7358
ROM
0.0024
Flexion C2-7 Cobb angle (°)
0.0001
C2/3 flexion IVDA (°)
0.0294
C3/4 flexion IVDA (°)
0.0091
C4/5 flexion IVDA (°)
0.0038
C5/6 flexion IVDA (°)
0.0013
C6/7 flexion IVDA (°)
0.0083
Extension C2-7 Cobb angle (°)
0.6561
C2/3 extension IVDA (°)
0.2050
C3/4 extension IVDA (°)
0.0394
C4/5 extension IVDA (°)
0.9373
C5/6 extension IVDA (°)
0.0579
C6/7 extension IVDA (°)
0.9851
C2/3 ROM (°)
0.0094
C3/4 ROM (°)
<0.0001
C4/5 ROM (°)
0.0236
C5/6 ROM (°)
0.2035
C6/7 ROM (°)
0.0183
T1 slope angle (°)
0.1036
T1 slope flexion angle (°)
0.9749
T1slope extension angle (°)
0.1447
Neutral C1-2 angle (°)
0.0052
Flexion C1-2 angle (°)
0.3521
Extension C1-2 angle (°)
0.0361
C2-C7 SVA (mm)
0.0113
The data was presented as , “” means , and there was a significant statistical difference between different time points.
