Group | n | Before operation | 1 month after operation | 3 months after operation | 6 months after operation | 9 months after operation | 12 months after operation | 16 months after operation |
---|---|---|---|---|---|---|---|---|
Elastic nailing group | 25 | 66.9 ± 8.7 | 78.9 ± 7.9 | 80.3 ± 8.0 | 81.3 ± 8.3 | 85.0 ± 8.0 | 85.9 ± 8.9 | 86.0 ± 9.0 |
Control group | 23 | 67.0 ± 8.1 | 74.8 ± 8.0 | 75.7 ± 7.4 | 75.8 ± 7.6 | 76.3 ± 7.9 | 79.6 ± 8.0 | 80.1 ± 10.2 |
t value | − 0.037 | 2.159 | 2.315 | 2.355 | 3.769 | 3.786 | 4.282 | |
P value | 0.971 | 0.037 | 0.025 | 0.022 | < 0.001 | < 0.001 | < 0.001 |