Table 3.
Functional outcomes among categories.
| Time of assessment | Score | Category 1 | Category 2 | Category 3 | Statistical significance |
|---|---|---|---|---|---|
| Preoperative | JOA | 10.9 ± 2.07 | 12.0 ± 1.00 | 11.4 ± 1.90 | p = 0.54 |
| LEFS | 34.2 ± 8.1 | 33.2 ± 6.1 | 35.6 ± 9.1 | p = 0.88 | |
| 6 weeks | JOA | 12.8 ± 2.59 | 14.4 ± 0.89 | 13.9 ± 2.54 | p = 0.41 |
| LEFS | 40.6 ± 6.2 | 40.8 ± 4.6 | 35.4 ± 7.1 | p = 0.20 | |
| 3 months | LEFS | 43.8 ± 7.3 | 41.0 ± 4.2 | 45.6 ± 9.6 | p = 0.60 |
| 6 months | LEFS | 58.9 ± 6.4 | 57.2 ± 4.9 | 54.4 ± 3.4 | p = 0.34 |
| One year | LEFS | 59.8 ± 2.1 | 60.6 ± 3.6 | 59.1 ± 3.3 | p = 0.68 |
| Two years | JOA | 13.1 ± 2.78 | 14.4 ± 2.70 | 14.0 ± 3.00 | p = 0.63 |
| RR | 43% | 50% | 53% | p = 0.83 |
LEFS Lower Extremity Functional Scale; JOA Japanese Orthopaedic Association score.
RR Recovery rate (%) = [(postoperative JOA score − preoperative JOA score)/(17 − preoperative JOA score)] × 100; Values are represented as mean ± standard deviation (range).