| Before treatment | After treatment | |
| I (severe, limitant) | 21 | 4 |
| II (pain is severe when walking, prevents any activity) | 28 | 11 |
| III (pain is tolerable with limited activity) | 12 | 5 |
| IV (pain is mild when walking; it disappears with rest) | 5 | 15 |
| V (pain is mild and inconstant; normal activity) | 4 | 14 |
| VI (no pain) | 0 | 21 |