Table 1.
Subject characteristics.
| CON | ACL | OA | TKA | p value | |
|---|---|---|---|---|---|
| n (m/f) | 92 (63/29) | 42 (25/17) | 60 (24/36) | 24 (9/15) | < 0.01 |
| Age (y) | 32 (13) | 33 (12) | 52 (13)a,b | 64 (7)a,b,c | < 0.01 |
| Height (cm) | 174 (14) | 173 (15) | 168 (14)a | 163 (15)a | < 0.01 |
| Body mass (kg) | 78.2 (21.6) | 84.4 (22.9) | 90.8 (32.4)a | 93.1 (35.6)a | < 0.01 |
| BMI (kg/m2) | 25.4 (4.4) | 28.0 (6.5) | 31.6 (8.6)a,b | 32.2 (10.7)a,b | < 0.01 |
| KL grade | < 0.01 | ||||
| 0 (n = 25) | 10 (10.9%) | 15 (35.7%) | 0 | 0 | |
| 1 (n = 18) | 3 (3.3%) | 15 (35.7%) | 0 | 0 | |
| 2 (n = 8) | – | 3 (7.1%) | 5 (8.3%) | 0 | |
| 3 (n = 49) | – | – | 41 (68.3%) | 8 (33.3%) | |
| 4 (n = 30) | – | – | 14 (23.3%) | 16 (66.7%) | |
| n (%) | 13 (14.1%) | 33 (78.6%) | 60 (100%) | 24 (100%) | |
| Days from injury (d) | NA | 17.5 (37.0) | NA | NA |
Data presented as median (interquartile range). ap < 0.05 versus CON; bp < 0.05 versus ACL; cp < 0.05 versus OA. NA not applicable; – not available.