TABLE 1.
Demographics of Anterior Cruciate Ligament Tearsa
| No. of tears | 1019 |
| Age, mean ± SD, y | 29.4 ± 11.7 |
| Sex | |
| Male | 581 (57.0) |
| Female | 438 (43.0) |
| Tear type | |
| Complete | 828 (81.3) |
| Partial | 130 (12.7) |
| Unknown | 61 (6.0) |
| Activity level | |
| Competitive | 197 (19.3) |
| Recreational | 673 (66.0) |
| Sedentary | 70 (6.9) |
| Unknown | 79 (7.8) |
| Tear occurrenceb | |
| Primary | 878 (86.2) |
| Secondary | 141 (13.8) |
| Graft failure | 65 (46.1) |
| Contralateral tear | |
| ACL reconstruction | 73 (51.8) |
| Nonoperative therapy | 3 (2.1) |
aValues are expressed as n (%) unless otherwise specified.
bOf the 914 unique patients, 141 patients sustained additional anterior cruciate ligament (ACL) tears from the time of initial inclusion to 2017, 40 of the secondary injuries included occurred after 2010, and 8 patients sustained multiple second injuries.