Table 2.
Changes in the objective and subjective measures of function between baseline (pre-operative) and post-operative (9+ month post-operative) visit. The objective belief values: belief of OA function, B(OA), belief in non-pathological function, B(NP), and uncertainty U, were calculated using the Cardiff Classifier. Subjective PROMs were calculated as a percentage of the total score, where 100% indicates heathy function.
| Objective |
Subjective |
||||||
|---|---|---|---|---|---|---|---|
| B(OA) | B(NP) | U | OKS (%) | KOS (%) | PACS (%) | ||
| Baseline | Mean | 0.662 | 0.046 | 0.292 | 42.8 | 46.1 | 53.5 |
| STD | 0.152 | 0.051 | 0.113 | 21.8 | 20.1 | 23.7 | |
| n | 22 | 22 | 22 | 22 | 22 | 16 | |
| Post-operative | Mean | 0.511 | 0.141 | 0.348 | 73.3 | 73.7 | 83.4 |
| STD | 0.204 | 0.14 | 0.113 | 18.9 | 23.0 | 21.1 | |
| n | 22 | 22 | 22 | 22 | 21 | 20 | |
| Change | Diff | −0.151 | 0.095 | 0.056 | 30.5 | 27.6 | 29.9 |
| p | <0.001 | .001 | <0.001 | <0.001 | <0.001 | <0.001 | |
| Effect size | −0.848 | 0.990 | 0.501 | 1.36 | 1.42 | 1.34 | |