Table 4 Location and severity of concomitant cartilage injuries at primary and revision anterior cruciate ligament reconstruction
Primary ACL reconstruction (n = 1014)a | ACL revision (n = 1014)b | Change from primary ACL reconstruction to revision | p valuec | |
|---|---|---|---|---|
Highest ICRS on any location | ||||
No injury | 828 (81.7%) | 658 (65.1%) | Decrease 75 (7.4%) Equal 671 (66.5%) Increase 263 (26.1%) | < 0.001 |
ICRS 1-2 | 150 (14.8%) | 259 (25.6%) | ||
ICRS 3-4 | 35 (3.5%) | 93 (9.2%) | ||
Patella | ||||
No injury | 984 (97.1%) | 941 (93.2%) | < 0.001 | |
ICRS 1 | 14 (1.4%) | 30 (3.0%) | Decrease 18 (1.8%) Equal 931 (92.3%) Increase 60 (5.9%) | |
ICRS 2 | 14 (1.4%) | 28 (2.8%) | ||
ICRS 3 | 1 (0.1%) | 10 (1.0%) | ||
ICRS 4 | 0 (0.0%) | 1 (0.1%) | ||
Tibial plateaus | ||||
No injury | 961 (94.9%) | 894 (88.5%) | < 0.001 | |
ICRS 1 | 21 (2.1%) | 50 (5.0%) | Decrease 30 (3.0%) Equal 880 (87.2%) Increase 99 (9.8%) | |
ICRS 2 | 27 (2.7%) | 50 (5.0%) | ||
ICRS 3 | 4 (0.4%) | 12 (1.2%) | ||
ICRS 4 | 0 (0.0%) | 4 (0.4%) | ||
Femoral condyles | ||||
No injury | 859 (84.8%) | 719 (71.2%) | < 0.001 | |
ICRS 1 | 49 (4.8%) | 96 (9.5%) | Decrease 77 (7.6%) Equal 701 (69.5%) Increase 231 (22.9%) | |
ICRS 2 | 74 (7.3%) | 121 (12.0%) | ||
ICRS 3 | 21 (2.1%) | 54 (5.3%) | ||
ICRS 4 | 10 (1.0%) | 20 (2.0%) | ||
Trochlea | ||||
No injury | 1002 (98.9%) | 960 (95.0%) | < 0.001 | |
ICRS 1 | 7 (0.7%) | 17 (1.7%) | Decrease 6 (0.6%) Equal 954 (94.5%) Increase 49 (4.9%) | |
ICRS 2 | 4 (0.4%) | 19 (1.9%) | ||
ICRS 3 | 0 (0.0%) | 7 (0.7%) | ||
ICRS 4 | 0 (0.0%) | 7 (0.7%) | ||