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Comparison of the postoperative recovery rate between the two groups of patients, n (%)
| Group | Number of cases | Excellent | Good | Fair | Difference | Excellent rate |
| Observation group | 48 | 40 (83.33) | 5 (10.42) | 3 (6.25) | 0 (0.00) | 45 (93.75) |
| Control group | 48 | 37 (77.08) | 7 (14.58) | 4 (8.33) | 0 (0.00) | 44 (91.67) |
| χ² | 0.154 | |||||
| P value | 0.695 |
