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 |