| VAS pain in rest | VAS pain during exercise | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Primary | Revision | Primary | Revision | ||||||||
 | Score (SD) | N | % | Score (SD) | N | % | Score (SD) | N | % | Score (SD) | N | % |
Pre-surgery | 43.0 (28.2) | 806 | 43 | 37.0 (29.2) | 204 | 30 | 68.6 (22.7) | 803 | 43 | 60.4 (28.1) | 202 | 30 |
3Â months | 8.6 (16.6) | 842 | 45 | 12.6 (20.5) | 397 | 58 | 16.8 (22.3) | 842 | 45 | 20.5 (24.9) | 397 | 58 |
6Â months | 9.4 (17.3) | 716 | 38 | 13.8 (20.9) | 330 | 49 | 17.7 (24.3) | 715 | 38 | 25.0 (26.9) | 330 | 49 |
12Â months | 7.9 (16.8) | 805 | 43 | 12.1 (21.4) | 324 | 48 | 14.9 (23.3) | 804 | 43 | 20.4 (26.7) | 324 | 48 |
Av Responsea | Â | Â | 42 | Â | Â | 46 | Â | Â | 42 | Â | Â | 46 |