Table 1 (Abstract O13).
Results
| Non-PFOA (n = 17) | PFOA (n = 34) | P-value | |
|---|---|---|---|
| Range of motion (degrees) | |||
| Pre-operative | 117.35 ± 11.87 | 118.29 ± 11.98 | 0.792 |
| 2 weeks | 115.53 ± 11.8 | 113.59 ± 14.45 | 0.634 |
| 6 weeks | 120.29 ± 8.56 | 120.76 ± 10.78 | 0.876 |
| 12 weeks | 125.41 ± 6.15 | 125.18 ± 7.69 | 0.913 |
| 26 weeks | 126.47 ± 6.06 | 125.12 ± 7.48 | 0.521 |
| 52 weeks | 126.47 ± 6.06 | 125.41 ± 6.84 | 0.591 |
| 5-STS (sec) | |||
| Pre-operative | 22.67 ± 6.09 | 21.13 ± 5.49 | 0.366 |
| 2 weeks | 27.21 ± 6.64 | 25.98 ± 7.1 | 0.554 |
| 6 weeks | 20.96 ± 4.41 | 18.82 ± 4.79 | 0.129 |
| 12 weeks | 16.12 ± 3.94 | 15.23 ± 4.3 | 0.473 |
| 26 weeks | 15.34 ± 4.04 | 15.16 ± 4.2 | 0.885 |
| 52 weeks | 14.43 ± 4.65 | 15.03 ± 3.99 | 0.633 |
| TUG (sec) | |||
| Pre-operative | 15.66 ± 3.72 | 15.52 ± 5.16 | 0.918 |
| 2 weeks | 24.2 ± 7.37 | 23.76 ± 12.07 | 0.873 |
| 6 weeks | 16.33 ± 6.1 | 15.94 ± 7.78 | 0.857 |
| 12 weeks | 12.43 ± 3.72 | 12.2 ± 3.91 | 0.842 |
| 26 weeks | 12.62 ± 3.82 | 12.13 ± 3.64 | 0.659 |
| 52 weeks | 12.54 ± 3.92 | 12.11 ± 3.36 | 0.700 |
| 3 m-WT (meters) | |||
| Pre-operative | 93.21 ± 19.82 | 95.69 ± 20.02 | 0.677 |
| 2 weeks | 67.05 ± 19.33 | 80.18 ± 30.04 | 0.066 |
| 6 weeks | 101 ± 21.65 | 107.88 ± 28.08 | 0.380 |
| 12 weeks | 126.71 ± 23.13 | 128.87 ± 35.04 | 0.819 |
| 26 weeks | 127.41 ± 21.1 | 129.24 ± 31.6 | 0.831 |
| 52 weeks | 127.88 ± 24.48 | 130.59 ± 28.73 | 0.741 |
| KSS pain (max 50) | |||
| Pre-operative | 31.47 ± 12.34 | 28.38 ± 11.4 | 0.379 |
| 2 weeks | 31.18 ± 10.54 | 31.76 ± 9.53 | 0.842 |
| 6 weeks | 41.47 ± 7.66 | 40.44 ± 6.44 | 0.616 |
| 12 weeks | 47.06 ± 4.7 | 44.71 ± 6.74 | 0.203 |
| 26 weeks | 47.35 ± 4.37 | 45.29 ± 4.25 | 0.113 |
| 52 weeks | 46.76 ± 5.57 | 45.15 ± 4.52 | 0.271 |
| KSS function (max 100) | |||
| Pre-operative | 56.76 ± 13.8 | 54.26 ± 18.14 | 0.620 |
| 2 weeks | 37.65 ± 8.5 | 39.56 ± 12.99 | 0.585 |
| 6 weeks | 61.47 ± 11.83 | 62.21 ± 13.66 | 0.851 |
| 12 weeks | 80.88 ± 13.02 | 80 ± 14.87 | 0.836 |
| 26 weeks | 82.06 ± 11.87 | 80.59 ± 13.58 | 0.706 |
| 52 weeks | 83.24 ± 9.83 | 80.74 ± 12.98 | 0.488 |
| Oxford knee score (OKS) | |||
| Pre-operative | 28 ± 6.53 | 26.68 ± 5.94 | 0.472 |
| 2 weeks | 26.65 ± 5.44 | 25.79 ± 6.15 | 0.630 |
| 6 weeks | 32.82 ± 4.54 | 33.09 ± 5.93 | 0.872 |
| 12 weeks | 38.24 ± 4.75 | 38.65 ± 6.66 | 0.821 |
| 26 weeks | 38.41 ± 4.68 | 38.38 ± 6.62 | 0.987 |
| 52 weeks | 38.47 ± 5.23 | 38.24 ± 6.42 | 0.896 |
| SF-12 | |||
| Pre-operative | 30.71 ± 3.8 | 31.74 ± 4.58 | 0.429 |
| 2 weeks | 28.12 ± 2.85 | 29.24 ± 3.64 | 0.274 |
| 6 weeks | 33.12 ± 2.83 | 34.44 ± 3.78 | 0.208 |
| 12 weeks | 38.29 ± 3.72 | 38.79 ± 4.46 | 0.693 |
| 26 weeks | 38.29 ± 3.85 | 38.79 ± 4 | 0.672 |
| 52 weeks | 38.82 ± 4.07 | 39.06 ± 3.95 | 0.843 |
Value presented as mean ± SD., and Mean change ± SD. P-value corresponds to the Paired t test and Generalized Estimating Equations (GEE)