Table 2.
Mean adjusted scores for primary and secondary outcomes over 24 months.
| Outcome measures | MRI group, mean (SE) | Orthopaedic group, mean (SE) | Difference (95% CI) | P-value |
|---|---|---|---|---|
| Primary outcomes | ||||
| SF-36 Physical functioning | 72.23 (1.50) | 69.41 (1.52) | 2.81 (−0.26 to 5.89) | 0.072 |
| KQoL-26 Physical functioning | 75.72 (1.28) | 72.07 (1.30) | 3.65 (1.03 to 6.28) | 0.007 |
| KQoL-26 Activity limitations | 76.74 (1.60) | 74.62 (1.63) | 2.13 (−1.15 to 5.41) | 0.20 |
| KQoL-26 Emotional functioning | 71.76 (1.58) | 69.16 (1.61) | 2.60 (−0.63 to 5.84) | 0.11 |
| Secondary outcomes | ||||
| SF-36 Social functioning | 79.48 (1.53) | 79.13 (1.56) | 0.35 (−2.81 to 3.51) | 0.83 |
| SF-36 Role physical | 74.98 (1.77) | 73.97 (1.80) | 1.01 (−2.62 to 4.64) | 0.59 |
| SF-36 Role emotional | 84.82 (1.53) | 83.00 (1.55) | 1.82 (−1.32 to 4.97) | 0.26 |
| SF-36 Mental | 72.74 (1.08) | 72.38 (1.10) | 0.36 (−1.87 to 2.59) | 0.75 |
| SF-36 Vitality | 54.53 (1.22) | 53.85 (1.24) | 0.68 (−1.84 to 3.19) | 0.60 |
| SF-36 Pain | 66.85 (1.54) | 65.63 (1.56) | 1.23 (−1.95 to 4.41) | 0.45 |
| SF-36 General Health | 68.46 (1.06) | 67.63 (1.08) | 0.83 (−1.36 to 3.02) | 0.46 |
MRI = magnetic resonance imaging. SE = standard error. SF-36 = Short Form 36-item health survey questionnaire. KQoL-26 = Knee Quality of Life 26-item Questionnaire.