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Complications (n, %)
| Group | Lung infection | Joint stiffness | Deep vein thrombosis | The incidence of complications |
|---|---|---|---|---|
| Experimental group (n=68) | 2 (2.94) | 3 (4.41) | 0 (0.00) | 5 (7.35) |
| Control group (n=68) | 8 (11.76) | 4 (5.88) | 6 (8.82) | 18 (26.47) |
| χ2 | 3.519 | 8.843 | ||
| P | 0.172 | 0.003 | ||
