| Joint Action | Preop (SD) | Postop (SD) | Difference(SD) | p-value | Power | N required for 90% power | |
| Stance Phase |
|
|
|
|
|
|
|
| L Ankle Angle Max | Dorsiflexion | 15.1 (3.13) | 15.77 (2.7) | 0.67 (3.01) | 0.525 | 0.033 | 53 |
| R Ankle Angle Max | Dorsiflexion | 15.65 (2.57) | 16.74 (3.37) | 1.09 (1.92) | 0.127 | 0.58 | 13 |
| L Ankle Angle Min | Plantarflexion | −11.15 (4.98) | −11.06 (7.56) | 0.09 (3.9) | 0.947 | 0.001 | 4343 |
| R Ankle Angle Min | Plantarflexion | −11.95 (7.57) | −10.79 (8.19) | 1.16 (1.26) | 0.024 | 0.984 | 8 |
| L Hip Angle Max | Flexion | 21.08 (9.3) | 23.37 (6.23) | 2.29 (8.54) | 0.445 | 0.06 | 38 |
| R Hip Angle Max | Flexion | 20.82 (8.8) | 22.1 (7.38) | 1.28 (9.58) | 0.699 | 0.008 | 135 |
| L Hip Angle Min | Extension | −10.54 (12.95) | −7 (9.27) | 3.54 (9.54) | 0.298 | 0.175 | 23 |
| R Hip Angle Min | Extension | −10.43 (11.76) | −8.79 (9.43) | 1.63 (8.44) | 0.578 | 0.022 | 67 |
| L Knee Angle Max | Extension | 2.65 (5.18) | −0.96 (4.54) | −3.61 (3.42) | 0.013 | 0.998 | 7 |
| R Knee Angle Max | Extension | 2.63 (4.38) | 0.95 (4.73) | −1.67 (5.56) | 0.392 | 0.088 | 31 |
| L Knee Angle Min | Flexion | −45.95 (3.23) | −50.79 (4.67) | −4.83 (4.09) | 0.008 | 1 | 7 |
| R Knee Angle Min | Flexion | −46.53 (3.45) | −50.12 (5.6) | −3.59 (4.78) | 0.055 | 0.887 | 10 |
| Swing Phase |
|
|
|
|
|
|
|
| L Ankle Angle Max | Dorsiflexion | 4.53 (2.88) | 6.03 (3.76) | 1.5 (3.87) | 0.279 | 0.201 | 21 |
| R Ankle Angle Max | Dorsiflexion | 5.03 (3.16) | 6.45 (3.55) | 1.42 (1.59) | 0.028 | 0.975 | 8 |
| L Ankle Angle Min | Plantarflexion | −11.58 (5.73) | −11.12 (8.37) | 0.46 (4.41) | 0.763 | 0.005 | 218 |
| R Ankle Angle Min | Plantarflexion | −12.09 (7.81) | −10.5 (8.44) | 1.59 (1.18) | 0.004 | 1 | 6 |
| L Hip Angle Max | Flexion | 26.11 (8.33) | 27.93 (4.95) | 1.82 (7.7) | 0.498 | 0.04 | 47 |
| R Hip Angle Max | Flexion | 24.55 (6.96) | 26.11 (6.92) | 1.56 (8.85) | 0.612 | 0.017 | 80 |
| L Hip Angle Min | Extension | 3.04 (11.88) | 6.91 (8.69) | 3.86 (8.07) | 0.189 | 0.38 | 16 |
| R Hip Angle Min | Extension | 3.29 (10.66) | 5.53 (9.95) | 2.24 (8.12) | 0.432 | 0.066 | 36 |
| L Knee Angle Max | Extension | 4.49 (4.79) | 1.21 (3.55) | −3.29 (3.37) | 0.019 | 0.992 | 8 |
| R Knee Angle Max | Extension | 5.24 (4.4) | 3.36 (4.87) | −1.88 (5.68) | 0.349 | 0.121 | 27 |
| L Knee Angle Min | Flexion | −56.74 (3.22) | −60.84 (3.45) | −4.1 (3.67) | 0.01 | 0.999 | 7 |
| R Knee Angle Min | Flexion | −56.27 (3.31) | −58.61 (4.83) | −2.34 (4.81) | 0.184 | 0.394 | 16 |
| Pelvic Tilt Max Angle | Anterior Tilt | 7.7 (8.67) | 8.05 (5.52) | 0.35 (8.01) | 0.9 | 0.002 | 1239 |
| Pelvic Tilt Min Angle | PosteriorTilt | 3.66 (8.67) | 3.86 (5.42) | 0.19 (8.12) | 0.944 | 0.001 | 4014 |
| Trunk Flexion Max Angle | Extension | 8.12 (5.18) | 7.04 (6.11) | −1.08 (7.99) | 0.697 | 0.008 | 132 |
| Trunk Flexion Min Angle | Flexion | 4.64 (4.94) | 3.23 (5.77) | −1.42 (7.52) | 0.587 | 0.02 | 71 |