| Comparative demographics | ||
---|---|---|---|
 | PRP | HA |  |
N. of patients | 54 | 55 | Â |
Age | 55 | 58 | N.S. |
Sex | 37 M, 17 F | 31 M, 24 F | N.S. |
BMI | 27 | 26 | N.S. |
Symptoms | 64 months | 63 months | N.S. |
Kellgren | 2.2 | 2.1 | N.S. |
Prev treat | 7 no | 5 no | N.S. |
 | 13 conservative | 21 conservative |  |
 | 34 surgical | 29 surgical |  |
Basal IKDC | 50.2 ± 15.7 | 47.4 ± 14.0 | N.S. |