Table 2.
Baseline characteristics of responders and impaired patients.
| Responders (n = 34) | Impaired (n = 11) | p-Value | |
|---|---|---|---|
| Age | 61.00 ± 11.00 | 66.73 ± 7.00 | 0.09 |
| Sex Ratio (H/F) | 12/22 | 2/9 | 0.46 |
| Body Mass Index (kg/m2) | 26.36 ± 3.60 | 27.24 ± 2.98 | 0.44 |
| Previous HA injection: n (%) | 28 (82.0) | 8 (82.0) | 1 |
| Previous PRP injection: n (%) | 8 (23.5) | 4 (36.4) | 0.06 |
| Volume injected | 6.50 ± 1.53 | 6.36 ±1.57 | 0.40 |
| Baseline KOOS score | 35.97 ± 16.42 | 47.55 ± 14.07 | 0.02 |
| Pain | 47.59 ± 20.89 | 52.36 ± 16.77 | 0.54 |
| Symptoms | 48.74 ± 22.51 | 60.09 ± 16.80 | 0.15 |
| ADL | 48.29 ± 21.29 | 16.09 ± 14.62 | 0.27 |
| Sport | 18.85 ± 20.62 | 35.50 ±14.23 | 0.01 |
| QOL | 16.82 ± 14.05 | 31.90 ± 25.44 | 0.03 |
| Kellgren and Lawrence scale (%) | |||
| I | 17.7% | 0% | |
| II | 17.7% | 18.2% | <0.0001 |
| III | 64.7% | 36.4% | |
| IV | 0% | 45.4% | |
| MRI characteristics according ICRS classification | |||
| Proportion of patient presenting: | |||
| One compartment affected | 11.5% | 3.8% | 0.01 |
| Two compartments affected | 49.1% | 38.5% | |
| Three compartments affected | 39.3% | 57.7% | |
| Proportion of patients with at least one compart-ment presenting grade IV OA: | 46.7% | 73.0% | 0.17 |
| Pain at the injection (VAS) | 27.88 ± 27.36 | 32.73 ± 24.12 | 0.55 |
HA: hyaluronic acid, PRP: Platelet-rich plasma, ADL: activities of daily living, QOL: quality of life.