PROs and muscle function test scores (n=54)
| 3-year follow-up | 5-year follow-up | |
|---|---|---|
| PROs | ||
| KOOS Pain (0–100) | 88 (14) | 89 (13) |
| KOOS Sport/rec (0–100) | 75 (25) | 73 (25) |
| KOOS QoL (0–100) | 66 (25) | 67 (25) |
| KOOS Q3 (0–4), median (IQR) | 1 (0–2) | 1 (0–2) |
| TAS (0–10), median (IQR) | 4 (2–6) | 4 (2–6) |
| ARS (0–16), median (IQR) | 6 (1–9) | 3 (1–8) |
| Muscle power tests, mean (SD) | ||
| Knee extension | ||
| Injured leg (W) | 239 (81) | |
| LSI (%) | 94 (13) | |
| Knee flexion* | ||
| LSI (%) | 98 (14) | |
| Leg press | ||
| LSI (%) | 100 (14) | |
| Hop tests | ||
| Vertical hop | ||
| Injured leg (cm) | 16 (4) | |
| LSI (%) | 97 (14) | |
| Side hop | ||
| Injured leg (n) | 37 (15) | |
| LSI (%) | 93 (23) | |
| One leg hop | ||
| LSI (%) | 99 (8) | |
| Postural orientation | ||
| TSP total score injured leg* | 4 (4) | |
The possible range of scores for the PROs is specified in parentheses. Values are mean and SD unless otherwise indicated.
*One participant did not perform the test.
ARS, activity rating scale for disorders of the knee; KOOS, the Knee Injury and Osteoarthritis Outcome Score—function in sport and recreation (Sport/rec), knee-related quality of life (QoL), knee confidence (Q3); PRO, patient-reported outcome; LSI, limb symmetry; TAS, Tegner Activity scale; TSP, Test for Substitution Patterns; W, watt.