Table 4.
Range of motion and functional scores before and after surgery.
| Preoperative flexion | 94.38 ± 6.81 | 96.47 ± 6.56 | 96.61 ± 6.81 | 93.18 ± 7.17 | 0.779 |
| Preoperative extension | 5.00 ± 3.90 | 8.24 ± 2.46 | 5.71 ± 4.24 | 8.18 ± 4.62 | 0.029 |
| Flexion (postoperative 2 weeks) | 82.92 ± 5.88 | 80.00 ± 5.86 | 91.43 ± 8.70 | 83.18 ± 6.03 | <0.001 |
| Extension (postoperative 2 weeks) | 3.33 ± 3.18 | 5.00 ± 3.54 | 3.21 ± 3.39 | 5.45 ± 4.16 | 0.166 |
| Flexion (postoperative 6 weeks) | 105.21 ± 7.44 | 100.00 ± 5.86 | 113.39 ± 7.82 | 104.55 ± 10.60 | <0.001 |
| Extension (postoperative 6 weeks) | 0.63 ± 1.69 | 1.47 ± 2.35 | 0.36 ± 1.89 | 2.73 ± 3.44 | 0.037 |
| Flexion (postoperative 3 months) | 118.75 ± 5.16 | 117.06 ± 3.98 | 123.21 ± 4.76 | 116.82 ± 5.13 | <0.001 |
| Extension (postoperative 3 months) | 0.42 ± 1.41 | 1.18 ± 2.19 | 0.18 ± 1.66 | 2.73 ± 3.44 | 0.012 |
| Flexion (postoperative 6 months) | 120.53 ± 5.02 | 118.97 ± 3.60 | 123.26 ± 4.50 | 117.42 ± 5.10 | 0.001 |
| Extension (postoperative 6 months) | 0.40 ± 0.92 | 1.10 ± 2.05 | 0.16 ± 1.40 | 2.40 ± 2.70 | 0.011 |
| Flexion (postoperative 12 months) | 122.92 ± 5.30 | 120.88 ± 3.18 | 124.64 ± 4.45 | 118.18 ± 5.14 | 0.001 |
| Extension (postoperative 12 months) | 0.40 ± 1.37 | 1.14 ± 2.10 | 0.34 ± 1.67 | 2.73 ± 3.12 | 0.048 |
| Preoperative KSS | 40.88 ± 6.95 | 38.88 ± 5.48 | 42.75 ± 6.94 | 35.55 ± 3.42 | 0.014 |
| Preoperative KSFS | 37.92 ± 5.70 | 37.06 ± 5.32 | 39.64 ± 5.08 | 32.73 ± 5.18 | 0.010 |
| KSS (postoperative 6 weeks) | 83.00 ± 3.50 | 80.00 ± 2.12 | 83.61 ± 3.76 | 78.55 ± 4.89 | <0.001 |
| KSFS (postoperative 6 weeks) | 81.67 ± 4.34 | 78.82 ± 3.76 | 82.50 ± 3.72 | 76.82 ± 4.62 | 0.001 |
| KSS (postoperative 3 months) | 86.33 ± 2.87 | 83.35 ± 1.77 | 87.86 ± 2.80 | 83.36 ± 2.58 | <0.001 |
| KSFS (postoperative 3 months) | 86.88 ± 3.85 | 83.24 ± 3.03 | 86.79 ± 4.13 | 82.27 ± 5.18 | 0.002 |
| KSS (postoperative 6 months) | 87.29 ± 2.48 | 84.41 ± 1.80 | 88.32 ± 2.37 | 84.64 ± 3.26 | <0.001 |
| KSFS (postoperative 6 months) | 87.29 ± 3.60 | 85.29 ± 2.78 | 87.32 ± 4.19 | 82.73 ± 5.64 | 0.015 |
| KSS (postoperative 12 months) | 87.46 ± 2.38 | 84.82 ± 1.42 | 88.71 ± 2.36 | 85.73 ± 2.00 | <0.001 |
| KSFS (postoperative 12 months) | 86.42 ± 2.66 | 85.53 ± 2.34 | 87.62 ± 4.01 | 81.73 ± 4.28 | 0.002 |
| KSS (final control) | 87.63 ± 2.34 | 84.88 ± 1.45 | 88.86 ± 2.42 | 85.73 ± 2.00 | <0.001 |
| KSFS (final control) | 87.75 ± 2.91 | 85.59 ± 2.42 | 87.68 ± 4.19 | 82.73 ± 5.64 | 0.003 |