| Preop (SD) | Postop (SD) | Difference (SD) | p-value | Power | N required for 90% power | |
| Left Stance Time | 0.76 (0.04) | 0.77 (0.06) | 0 (0.04) | 0.736 | 0.006 | 175 |
| Right Stance Time | 0.77 (0.04) | 0.78 (0.07) | 0.01 (0.04) | 0.615 | 0.016 | 81 |
| Left Step Length | 0.49 (0.07) | 0.49 (0.09) | 0 (0.03) | 0.83 | 0.003 | 426 |
| Right Step Length | 0.49 (0.09) | 0.49 (0.08) | 0 (0.03) | 0.739 | 0.006 | 180 |
| Left Step Time | 0.58 (0.03) | 0.58 (0.05) | 0 (0.03) | 0.833 | 0.003 | 444 |
| Right Step Time | 0.57 (0.03) | 0.57 (0.05) | 0 (0.03) | 0.853 | 0.002 | 568 |
| Left Stride Length | 0.98 (0.16) | 0.98 (0.17) | 0 (0.05) | 0.94 | 0.001 | 3462 |
| Right Stride Length | 0.98 (0.16) | 0.98 (0.17) | 0 (0.05) | 0.956 | 0.001 | 6498 |
| Left Swing Time | 0.39 (0.03) | 0.38 (0.04) | −0.01 (0.02) | 0.526 | 0.032 | 53 |
| Right Swing Time | 0.38 (0.02) | 0.38 (0.03) | −0.01 (0.02) | 0.275 | 0.207 | 21 |