| Before surgery | 3 months after surgery | 6 months after surgery | 1 year after surgery |
---|---|---|---|---|
LBP | ||||
 on affected side | 46.9 (34.0)* | 11.2 (16.0) | 12.3 (19.0) | 13.8 (20.1) |
 on opposite side | 17.4 (27.0) | 7.20 (13.4) | 9.22 (18.3) | 12.7 (20.6) |
LEP | ||||
 on affected side | 77.5 (25.2)** | 16.6 (21.6) | 10.0 (15.4) | 8.92 (15.2) |
 on opposite side | 12.0 (27.5) | 5.13 (13.3) | 4.53 (11.6) | 5.77 (13.0) |
LEN | ||||
 on affected side | 62.7 (32.7)†| 13.4 (19.4) | 10.7 (15.7) | 11.4 (17.6) |
 on opposite side | 12.3 (28.0) | 3.63 (11.6) | 3.36 (8.73) | 2.74 (12.4) |