Table 1 General information and clinical characteristics of patients with two grafting methods (n=33)
Total | Nonstructural grafting (n=24) | Structural grafting (n=9) | p value | |
|---|---|---|---|---|
Age | 0.246 | |||
Mean±SD | 51.58±16.24 | 50.94±16.07 | 50.52±16.53 | |
Median (mix-max) | 14-74 | 21-74 | 14-72 | |
Gender (n, %) | 0.886 | |||
Male | 14 (42.42) | 10 (41.67) | 4 (44.44) | |
Female | 19 (57.58) | 14 (58.33) | 5 (55.56) | |
Basilar invagination (n, %) | 0.442 | |||
Yes | 14 (42.42) | 9 (37.5) | 5 (55.56) | |
No | 19 (57.58) | 15 (62.5) | 4 (44.44) | |
Diagnosis (n, %) | 0.348 | |||
1 | 19 (57.58) | 15 (62.50) | 4 (44.44) | |
2 | 11 (33.33) | 8 (33.33) | 3 (33.33) | |
3 | 3 (9.09) | 1 (4.17) | 2 (22.23) | |
Operation time (min) | 213.76±62.74 | 215.75±62.67 | 206.69±62.88 | 0.065 |
Intraoperative bleeding (ml) | 148.64±93.92 | 150.78±94.60 | 152.76±98.05 | 0.409 |
Improvement in JOA score (%) | ||||
1 day | 11.96±13.92 | 11.17±13.35 | 13.23±14.29 | 0.594 |
1 month | 43.33±28.50 | 43.51±28.93 | 46.09±27.92 | 0.989 |
3 months | 59.01±29.70 | 59.29±30.13 | 60.54±29.45 | 0.683 |
6 months | 74.27±26.80 | 74.25±27.23 | 72.35±27.73 | 0.893 |
Last follow-up | 79.58±27.53 | 79.33±27.94 | 77.96±28.83 | 0.889 |
Complications (n, %) | 13 (39.39) | 9 (27.27) | 4 (12.12) | 0.509 |
Implant failure | 1 (7.69) | 1 (11.11) | 0 (0) | |
Occipital neuralgia | 12 (92.31) | 8 (98.89) | 4 (100) | |
Follow-up time | 26.03±4.45 | 26.33±4.73 | 25.22±3.70 | 0.531 |