Table 2.
Overall functional outcome based on JOA and LEFS scoring.
| Time of assessment | Score | Score | Percentage of functional compromise (%) | Percentage of Improvement in function | Recovery rate by Hirabayashi method | Statistical significance |
|---|---|---|---|---|---|---|
| Preoperative | JOA | 11.3 ± 1.83 | 33.5 | – | – | – |
| LEFS | 34.4 ± 7.7 | 57 | – | – | – | |
| 6 weeks | JOA | 13.5 ± 2.34 | 20.6 | – | 40.8% | p < 0.0001 |
| LEFS | 39.1 ± 6.4 | 51.1 | 5.9% | – | p = 0.01 | |
| 3 months | LEFS | 43.7 ± 7.4 | 45.4 | 11.6% | – | p < 0.0001 |
| 6 months | LEFS | 57.4 ± 5.6 | 28.3 | 28.7% | – | p < 0.0001 |
| One year | LEFS | 59.8 ± 2.7 | 25.3 | 31.7% | – | p < 0.0001 |
| Two years | JOA | 13.6 ± 2.76 | 20.0 | – | 47.5% | p < 0.0001 |
Some values are represented as mean ± standard deviation (range).
A probability value “p” less than 0.05 is considered statistically significant.
Percentage of improvement in function = % of preoperative functional compromise − % of postoperative functional compromise.
Recovery rate by Hirabayashi method (%) = [(postoperative JOA score − preoperative JOA score)/(17 − preoperative JOA score)] × 100.
LEFS lower extremity functional scale; JOA score Japanese Orthopaedic Association score.