Background
Methods
Subjects
Measurements using radiographs and MRI
Statistical analysis
Results
SCECS (n = 17) | Non-SCECS (n = 197) | p value | |
---|---|---|---|
Age (years) *1 | 64 (20) | 69 (15) | *0.016 |
Male (%) *2 | 15 (88) | 135 (69) | 0.089 |
BMI *1 | 25.4 (5.3) | 23.9 (5.1) | *0.038 |
Smoking (%) *2 | 6 (35) | 76 (39) | 1 |
Time from onset to operation (months) *1 | 6 (7) | 20 (48) | * < 0.001 |
Postoperative follow-up period (months) *1 | 24 (53) | 27 (41) | 0.57 |
Preoperative C2–7 cervical lordosis (°) *1 | 13 (17) | 13 (14) | 0.502 |
Preoperative dynamic instability (%) *3 | 1 (5.8) | 21 (10.6) | 0.455 |
Preoperative C2–7 range of motion (degrees) *1 | 35 (13) | 37 (20) | 0.399 |
Preoperative segmental range of motion (°) *1 | 10 (8) | 8 (6) | 0.516 |
Diameter of the spinal canal (mm) *1 | 14 (2) | 14 (2) | 0.913 |
Preoperative JOA total score *1 | 10.0 (4.0) | 11.0 (3.0) | 0.573 |
Postoperative JOA total score *1 | 13.0 (3.5) | 12.0 (3) | 0.887 |
JOA recovery rate (%) *1 | 37.5 (28.5) | 28.6 (35.7) | 0.361 |
Reoperation (%) *3 | 0 (0) | 10 (10.3) | 0.427 |
SCECS (n = 17) | Negative ISI (n = 82) | ISI on T2WI (n = 96) | ISI on T1/T2WI (n = 19) | p value | |
---|---|---|---|---|---|
Age (years) *1 | *64 (20) | *73 (14) | 67 (14) | 68 (17) | *0.032 |
Male (%) *2 | 15 (88) | 53 (65) | 67 (70) | 14 (74) | 0.239 |
BMI (kg/m2) *1 | 25.4 (5.3) | 23.6 (4.4) | 23.6 (5.2) | 26.2 (5) | 0.08 |
Smoking (%) *2 | 6 (35) | 30 (37) | 36 (38) | 10 (53) | 1 |
Time from onset to operation (months) *1 | 6 (7) | 21 (50) | 19 (47) | 31 (45) | 0.129 |
Postoperative follow-up period (months) *1 | 24 (53) | 24 (32) | 37 (44) | 27 (45) | 0.098 |
Preoperative C2–7 cervical lordosis (°) *1 | 13 (17) | 14.5 (13) | 13 (13) | 5.5 (19) | 0.11 |
Preoperative C2–7 range of motion (°) *1 | 35 (13) | 36.5 (21) | 36.5 (18) | 42 (21) | 0.51 |
Preoperative segmental range of motion (°) *1 | 10 (8) | 7 (7) | 8.5 (6) | 7 (6) | 0.323 |
Diameter of the spinal canal (mm) *1 | 14 (2) | *14 (2) | *14 (1) | 14 (1) | *0.036 |
Preoperative JOA total score *1 | 10.0 (4.0) | 10.8 (3.0) | 11.0 (3.0) | 11.0 (2.3) | 0.938 |
Postoperative JOA total score *1 | 13.0 (3.5) | 12.0 (3.0) | 13.0 (4.0) | 12.0 (3.3) | 0.754 |
JOA recovery rate (%) *1 | 37.5 (28.5) | 25.0 (33.0) | 33.3 (42.2) | 26.8 (41.7) | 0.499 |
Reoperation (%) *2 | 0 (0) | 7 (8.5) | 3 (3.2) | 0 (0) | 1 |
Gd enhancement (+) (n = 6) | Gd enhancement (−) (n = 5) | p value | |
---|---|---|---|
Age (y) *1 | 63 (31) | 57 (20) | 0.855 |
Male (%) *2 | 4 (66) | 5 (100) | 0.455 |
Time from onset to operation (months) *1 | 9 (10) | 5 (3) | 0.195 |
Postoperative follow-up period (months) *1 | 18.5 (29) | 63 (41) | 0.01 |
Preoperative C2–7 range of motion (°) *1 | 21.5 (20) | 32 (13) | 0.2 |
Preoperative segmental range of motion (°) *1 | 11.5 (6) | 4 (8) | 0.054 |
Diameter of the spinal canal (mm) *1 | 14.5 (1) | 14 (3) | 0.099 |
Preoperative JOA total score *1 | 10.25 (6.3) | 12 (4.3) | 0.199 |
Postoperative JOA total score *1 | 11.5 (4.5) | 15 (2.5) | 0.139 |
JOA recovery rate(%) *1 | 25.8 (22.7) | 50 (53.3) | 1 |
ISI regression (+) (n = 6) | ISI regression (−) (n = 11) | p value | |
---|---|---|---|
Age (years) *1 | 67.5 (21) | 58 (23) | 0.84 |
Male (%) *2 | 6 (100) | 9 (82) | 0.52 |
Time from onset to operation (months) *1 | 7 (11) | 6 (5) | 0.477 |
Postoperative follow-up period (months) *1 | 18.5 (44) | 24 (58) | 0.801 |
Preoperative C2–7 range of motion (°) *1 | 33.5 (19) | 36 (12) | 0.546 |
Preoperative segmental range of motion (°) *1 | 10.5 (6) | 9 (8) | 0.338 |
Diameter of the spinal canal (mm) *1 | 14 (2) | 14 (2) | 0.372 |
Preoperative JOA total score *1 | 11 (3.9) | 9 (4) | 0.363 |
Postoperative JOA total score *1 | 14 (4.4) | 12 (2) | 0.263 |
JOA recovery rate (%) *1 | 46.5 (31.6) | 30.0 (20.0) | 0.078 |