Authors | Outcome parameters | Preoperatively | 6 months postoperatively | 1 year postoperatively | ||||||
---|---|---|---|---|---|---|---|---|---|---|
UKA mean (SD) | TKA mean (SD) | P-value | UKA mean (SD) | TKA mean (SD) | P-value | UKA mean (SD) | TKA mean (SD) | P-value | ||
Vilhelm Wiik et al. [24] | Cadence (steps/min) | Â | Â | Â | Â | Â | Â | 105.19 | 102.19 | 0.27 |
Speed (m/s) | Â | Â | Â | Â | Â | Â | 1.05 | 1.01 | 0.31 | |
Stride length (m) | Â | Â | Â | Â | Â | Â | 1.20 | 1.18 | 0.72 | |
Maximum angle in stance phase (°) |  |  |  |  |  |  | 7.11 | 8.55 | 0.27 | |
Minimum angle in stance phase (°) |  |  |  |  |  |  | 3.96 | 7.17 | < 0.001 | |
Range of movement in the gait cycle (°) |  |  |  |  |  |  | 46.68 | 41.49 | < 0.001 | |
Maximum flexion in the gait cycle (°) |  |  |  |  |  |  | 51.01 | 47.97 | 0.98 | |
Maximum flexion in stance phase (°) |  |  |  |  |  |  | 48.43 | 43.87 | 0.01 | |
Flexion at foot strike (°) |  |  |  |  |  |  | 2.84 | 0.92 | 0.08 | |
Nishizawa et al. [17] | Gait speed (m/s) | Â | Â | Â | Â | Â | Â | 1.06 (0.18) | 0.85 (0.20) | 0.011 |
ROM (Flexion) (°) | 136.4 ± 6.7 | 114.3 ± 10.3 | < 0.001 |  |  |  | 134.2 (5.5) | 116.7 (12.2) | < 0.001 | |
FTA (°) | 176.7 ± 3.6 | 186.8 ± 5.6 | < 0.001 |  |  |  | 175.2 (3.0) | 175.0 (2.0) | 0.80 | |
Knee flexion angle at heel contact(°) |  |  |  |  |  |  | 3.8 (4.8) | 10.6 (4.6) | < 0.01 | |
Knee flexion angle during mid-stance phase (°) |  |  |  |  |  |  | 1.3 (6.4) | 8.2 (5.1) | 0.018 | |
Peak knee adduction angle during stance phase (°) |  |  |  |  |  |  | 1.5 (4.8) | 0.5 (3.0) | 0.70 | |
Peak knee internal rotation angle in walking (°) |  |  |  |  |  |  | 7.8 (5.5) | 7.2 (4.9) | 0.63 | |
Peak knee flexion moment in walking (Nm/kg) | Â | Â | Â | Â | Â | Â | 0.34 (0.21) | 0.35 (0.20) | 0.77 | |
Peak knee adduction moment in walking (Nm/kg) | Â | Â | Â | Â | Â | Â | 0.56 (0.15) | 0.44 (0.15) | 0.029 | |
Peak tibial internal rotation moment in walking(Nm/kg) |  |  |  |  |  |  | 0.15 (0.06) | 0.06 (0.04) | < 0.001 | |
De Vroey et al. [18] | Cycle time (s) | Â | Â | Â | Â | Â | Â | 1.24(0.15) | 1.30(0.11) | NS |
Stance time (s) | Â | Â | Â | Â | Â | Â | 0.73(0.08) | 0.73(0.07) | NS | |
Swing time (s) | Â | Â | Â | Â | Â | Â | 0.51 (0.90) | 0.51 (0.04) | NS | |
Cadence (steps/minute) | Â | Â | Â | Â | Â | Â | 99.25 (12.59) | 93.96 (9.47 | NS | |
Speed (m/s) | Â | Â | Â | Â | Â | Â | 0.90(0.18) | 0.75(0.10 | NS | |
Stride width (cm) | Â | Â | Â | Â | Â | Â | 14.9 (3.53) | 14.0 (2.30) | NS | |
Stride length (cm) | Â | Â | Â | Â | Â | Â | 1.09 (17.31) | 0.98 (12.90) | NS | |
KNEE peak extension/plantarflexion at loading response (°) |  |  |  |  |  |  | 6.08 | 2.88 | NS | |
Knee peak flexion/dorsiflexion at loading response (°) |  |  |  |  |  |  | 10.98 | 6.86 | NS | |
Knee peak extension/plantarflexion at midstance (°) |  |  |  |  |  |  | 8.18 | 5.09 | NS | |
Knee peak flex/dorsiflexiom at midstance (°) |  |  |  |  |  |  | 10.94 | 6.76 | NS | |
Knee peak extension/plantarflexion at terminal stance (°) |  |  |  |  |  |  | 7.63 | 5.31 | NS | |
Knee peak flex/dorsiflexionation terminal stance (°) |  |  |  |  |  |  | 15.63 | 11.68 | NS | |
Knee time peak extension/plantarflexion angle (%) | Â | Â | Â | Â | Â | Â | 6.83 | 4.75 | NS | |
Knee time peak flexion/dorsiflexion angle (%) | Â | Â | Â | Â | Â | Â | 59.00 | 59.00 | NS | |
Friesenbichler et al. [19] | Gait Speed (cm/s) | Â | Â | Â | 141.0 | 141.8 | NS | Â | Â | Â |
Step length (cm) | Â | Â | Â | 73.9 | 75.1 | NS | Â | Â | Â | |
Single-limb support (%) | Â | Â | Â | 40.0 | 38.6 | 0.006 | Â | Â | Â | |
Quadriceps MVC torque (Nm/kg) | Â | Â | Â | 1.9 | 1.7 | 0.194 | Â | Â | Â | |
Wiik et al. [20] | Speed (km/h) |  |  |  |  |  |  | 7.0 (0.6) | 6.2 (0.8) | < 0.05 |
Cadence (step/min) | Â | Â | Â | Â | Â | Â | 133 (16) | 139 (13) | NS | |
Heel Strike Force (BW) |  |  |  |  |  |  | 1.52 (0.11) | 1.38 (0.18) | < 0.05 | |
Mid-stance force (BW) |  |  |  |  |  |  | 0.58 (0.13) | 0.67 (0.13) | < 0.05 | |
Toe-off force (BW) | Â | Â | Â | Â | Â | Â | 1.01 (0.13) | 1.01 (0.14) | NS | |
Step length (cm) |  |  |  |  |  |  | 92 (9) | 87 (10) | < 0.05 | |
Stride length (cm) |  |  |  |  |  |  | 189 (29) | 172 (20) | < 0.05 | |
Impulse (BW/s) |  |  |  |  |  |  | 0.45 (0.03) | 0.48 (0.03) | < 0.05 | |
Stance time(s) | Â | Â | Â | Â | Â | Â | 0.56 (0.03) | 0.60 (0.04) | NS | |
Gait width (cm) | Â | Â | Â | Â | Â | Â | 12.6 (2.7) | 12.6 (3.8) | NS | |
Igor Komnik et al. [21] | Velocity (m/s) | Â | Â | Â | Â | Â | Â | 1.4 (0.03) | 1.4 (0.03) | NS |
Contact time (s) | Â | Â | Â | Â | Â | Â | 0.68 (0.03) | 0.68 (0.03) | NS | |
Step length (cm) S | Â | Â | Â | Â | Â | Â | 38.9 (1.5) | 39.1 (2.3) | NS | |
Step width (cm) | Â | Â | Â | Â | Â | Â | 4.7 (1.7) | 4.6 (1.2) | NS | |
Varus angle (°)内翻 |  |  |  |  |  |  | 2.4 (1.4) | 2.4 (0.8) | 0.897 | |
RoM angle (°) |  |  |  |  |  |  | 2.1 (1.2) | 1.9 (0.6) | 0.976 | |
Int. rotation angle (°) |  |  |  |  |  |  | 4.5 (5.4) | 0.49 (2.8) | 0.103 | |
Adduction moment [Nm/(kgm)] | Â | Â | Â | Â | Â | Â | 0.32 (0.08) | 0.27 (0.05) | 0.109 | |
Internal rotation moment [Nms/(kg m)] | Â | Â | Â | Â | Â | Â | 0.09 (0.04) | 0.07 (0.02) | 0.378 | |
Adduction mom. impulse [Nms/(kg m)] | Â | Â | Â | Â | Â | Â | 0.05 (0.02) | 0.04 (0.01) | 0.101 | |
Joint stiffness (Nm/Ëš) | Â | Â | Â | Â | Â | Â | 0.007 (0.002) | 0.006 (0.001) | 0.068 | |
FAP-CoMadd (cm) | Â | Â | Â | Â | Â | Â | 35.6 (5.6) | 33.9 (8.4) | 0.503 | |
Jones et al. [22] | Top walking speed (m/s) |  |  |  |  |  |  | 2.2 | 1.6 | p < 0.001 |
Anatole V et al. [23] | Speed (m/s) |  |  |  |  |  |  | 1.75 | 1.52 | p < 0.05 |
Hof speed (H) |  |  |  |  |  |  | 0.59 | 0.51 | p < 0.05 | |
Cadence (step/min) | Â | Â | Â | Â | Â | Â | 134.9 | 133.9 | NS | |
Step length (cm) |  |  |  |  |  |  | 85.6 | 75.2 | p < 0.05 | |
Stride length (cm) |  |  |  |  |  |  | 173.2 | 150.2 | p < 0.05 | |
Contact time (s) | Â | Â | Â | Â | Â | Â | 0.58 | 0.60 | NS | |
Step time (s) | Â | Â | Â | Â | Â | Â | 0.44 | 0.45 | NS | |
Single limb stance (s) | Â | Â | Â | Â | Â | Â | 0.31 | 0.33 | NS | |
Gait width (cm) | Â | Â | Â | Â | Â | Â | 13.2 | 13.6 | NS | |
S Miller et al. [16] | Cadence (steps/min) | Â | Â | Â | Â | Â | Â | 105.193 | 102.190 | 0.270 |
Gait speed (m/s) | Â | Â | Â | Â | Â | Â | 1.054 | 1.011 | 0.307 | |
Stride length (m) | Â | Â | Â | Â | Â | Â | 1.200 | 1.188 | 0.719 | |
Stride time (s) | Â | Â | Â | Â | Â | Â | 1.152 | 1.196 | 0.197 | |
Step length (m) | Â | Â | Â | Â | Â | Â | 0.599 | 0.600 | 0.953 | |
Cankaya et al. [25] | Gait velocity (m/s) | Â | Â | Â | Â | Â | Â | 1.2735 | 1.1621 | 0.003 |
Cadence (steps/minute) | Â | Â | Â | Â | Â | Â | 102.0588 | 103.2218 | 0.727 | |
Step time (s) | Â | Â | Â | Â | Â | Â | 592.0000 | 594.7429 | 0.807 | |
Step length (cm) | Â | Â | Â | Â | Â | Â | 60.0000 | 61.6062 | 0.302 | |
Step time symmetry | Â | Â | Â | Â | Â | Â | 13.5453 | 20.0606 | 0.005 | |
Step length symmetry | Â | Â | Â | Â | Â | Â | 16.3041 | 21.6932 | 0.024 | |
Vertical COM | Â | Â | Â | Â | Â | Â | 1.0529 | 1.1176 | 0.609 |