Oxford Knee Scores (OKS, primary outcome), from baseline to 6 months after surgery (primary time point)
| Means (SDs) (No of participants) | Between groups comparison | ||||||||||
| Two months | Six months | ||||||||||
| Baseline | Two months after surgery | Six months after surgery | Unadjusted | Adjusted* | Unadjusted | Adjusted* | |||||
| Effect size (95% CI) | P value | Effect size (95% CI) | P value | Effect size (95% CI) | P value | Effect size (95% CI) | P value | ||||
| JII-BCS | 20.25 (5.69) (n=40) | 34.10 (7.10) (n=39) | 42.97 (5.21) (n=39) | 1.97 (−1.3 7 to 5.32) | 0.24 | 2.5 (−0.71 to 5.71) | 0.12 | 0.24 (−2.10 to 2.58) | 0.84 | 0.35 (−2.01 to 2.71) | 0.77 |
| Genesis II | 19.05 (5.28) (n=40) | 36.00 (7.61) (n=40) | 43.13 (5.20) (n=40) | ||||||||
OKS is a 12-item knee function assessment, ranging from 0 (worst score) to 48 (best score).
Journey II BCS (JII-BCS)
*Adjusted for strata used in randomisation and for baseline scores.
†
APQ, Activity and Participation Questionnaire; VAS, Visual Analogue Scale.