TABLE 1.
Baseline Patient Characteristicsa
| n | Sex, n (%) | Age, y, Mean ± SD (Range) | Time From Injury to MRI, d, Mean ± SD (Range) | Tegner Activity Score, Median (Range) | Lysholm Score at MRI, Mean ± SD | ADD at MRI, mm, Mean ± SD | |||
|---|---|---|---|---|---|---|---|---|---|
| Male | Female | Before Injury | At MRI | ||||||
| ACL status | |||||||||
| Control | 14 | 14 (100.0) | 0 (0.0) | 37.1 ± 6.0 (28-46) | — | — | 5 (3-7) | 100 ± 0.0 | — |
| Acute (<12 wk) | |||||||||
| Group A | 28 | 16 (57.1) | 12 (42.9) | 27.1 ± 10.0 (16-45) | 44.1 ± 16.0 (0-76) | 5 (3-9) | 2 (2-2) | 63.8 ± 14.7 | 5.8 ± 3.3 |
| Chronic (≥12 wk) | |||||||||
| Group B (≤2 y) | 14 | 10 (71.4) | 4 (28.6) | 22.0 ± 5.4 (15-36) | 256.3 ± 171.2 (97-551) | 7.5 (6-9) | 6 (2-7) | 72.1 ± 10.0 | 5.9 ± 3.1 |
| Group C (>2 y) | 7 | 4 (57.1) | 3 (42.9) | 24.4 ± 6.7 (16-36) | 1328.7 ± 397.2 (744-1738) | 7 (6-8) | 6 (4-8) | 61.0 ± 12.0 | 6.5 ± 4.7 |
| Meniscusb | |||||||||
| Acute (<12 wk) | |||||||||
| MM(+) | 9 | 4 (44.4) | 5 (55.6) | 21.3 ± 6.6 (16-34) | 47.6 ± 15.7 (25-76) | 7 (6-9) | 2 (2-2) | 64.2 ± 14.2 | 5.6 ± 3.3 |
| MM(–) | 19 | 12 (63.2) | 7 (36.8) | 29.8 ± 10.3 (16-45) | 42.4 ± 16.3 (0-67) | 7 (3-7) | 2 (2-2) | 63.6 ± 15.4 | 5.9 ± 3.4 |
| LM(+) | 12 | 6 (50.0) | 6 (50.0) | 25.5 ± 10.8 (16-45) | 44.3 ± 20.0 (0-76) | 7 (6-7) | 2 (2-2) | 67.7 ± 11.1 | 6.5 ± 3.9 |
| LM(–) | 16 | 10 (62.5) | 6 (37.5) | 28.3 ± 9.5 (16-45) | 43.9 ± 12.9 (25-67) | 7 (3-9) | 2 (2-2) | 60.9 ± 16.7 | 5.3 ± 2.8 |
| Chronic (≥12 wk) | |||||||||
| MM(+) | 10 | 5 (50.0) | 5 (50.0) | 22.1 ± 6.5 (15-36) | 751.9 ± 487.1 (123-1561) | 7 (6-9) | 6 (4-8) | 65.8 ± 15.1 | 6.3 ± 4.6 |
| MM(–) | 11 | 9 (81.8) | 2 (18.2) | 23.5 ± 5.3 (16-36) | 488.2 ± 647.7 (97-1816) | 8 (6-9) | 4 (2-7) | 70.8 ± 7.3 | 5.9 ± 2.6 |
| LM(+) | 6 | 4 (66.7) | 2 (33.3) | 20.3 ± 3.4 (15-24) | 301.8 ± 172.4 (123-518) | 8 (7-9) | 6 (4-7) | 69.2 ± 14.1 | 5.3 ± 3.1 |
| LM(–) | 15 | 10 (66.7) | 5 (33.3) | 23.8 ± 6.4 (16-36) | 738.5 ± 639.7 (97-1816) | 7 (6-9) | 6 (2-8) | 68.1 ± 11.1 | 6.4 ± 3.8 |
aDashes indicate no data available. ACL, anterior cruciate ligament; ADD, anterior displacement difference; LM, lateral meniscus; MM, medial meniscus; MRI, magnetic resonance imaging.
b(+), with meniscal tears; (–), without meniscal tears.