Table 5.
Defender Metrics Compared With 1 Year Before Index Yeara
| Player Metricsb | Control | Complete ACL Tear | P Value |
|---|---|---|---|
| Games played per season | |||
| Index year | −0.73 ± 12.70 | −9.62 ± 9.47 | <.001 |
| 1 y after injury | 3.08 ± 8.81 | −14.11 ± 12.10 | <.001 |
| 2 y after injury | −0.14 ± 8.51 | −10.86 ± 9.97 | <.001 |
| 3 y after injury | −6.71 ± 15.85 | −6.57 ± 12.16 | .692 |
| 4 y after injury | −17.25 ± 12.12 | −11.40 ± 2.51 | <.001 |
| Minutes played per season | |||
| Index year | −14.59 ± 1078.12 | −738.92 ± 803.85 | <.05 |
| 1 y after injury | 224.38 ± 769.92 | −1189.44 ± 1131.66 | <.05 |
| 2 y after injury | −136.29 ± 587.26 | −869.71 ± 926.63 | <.05 |
| 3 y after injury | −611.43 ± 1407.55 | −521.57 ± 1238.20 | .114 |
| 4 y after injury | −1584.00 ± 1267.11 | −925.20 ± 267.49 | <.05 |
| Minutes played per game | |||
| Index year | 3.09 ± 41.32 | −1.06 ± 20.53 | .976 |
| 1 y after injury | 7.73 ± 25.61 | −17.23 ± 34.97 | <.05 |
| 2 y after injury | 6.79 ± 23.26 | −1.56 ± 14.83 | <.05 |
| 3 y after injury | −2.66 ± 30.01 | −6.41 ± 28.38 | .099 |
| 4 y after injury | −21.04 ± 38.86 | 0.71 ± 10.05 | .753 |
| Goals per season | |||
| Index year | 0.14 ± 0.89 | −0.54 ± 1.39 | <.001 |
| 1 y after injury | 0.85 ± 1.21 | −0.89 ± 1.62 | <.001 |
| 2 y after injury | 0.00 ± 0.58 | −1.00 ± 1.83 | <.001 |
| 3 y after injury | 0.29 ± 0.76 | −0.86 ± 1.21 | .089 |
| 4 y after injury | −0.25 ± 0.50 | −0.80 ± 2.05 | <.001 |
| Assists per season | |||
| Index year | 0.23 ± 1.11 | −0.54 ± 1.45 | <.001 |
| 1 y after injury | 0.38 ± 2.18 | −0.33 ± 1.00 | <.001 |
| 2 y after injury | 0.00 ± 1.63 | −0.57 ± 1.51 | <.001 |
| 3 y after injury | 0.57 ± 2.44 | 0.00 ± 1.15 | <.05 |
| 4 y after injury | −1.50 ± 3.11 | 0.20 ± 0.45 | .156 |
| Points per game | |||
| Index year | 0.15 ± 0.86 | 0.07 ± 0.86 | <.05 |
| 1 y after injury | −0.01 ± 0.68 | 0.20 ± 0.94 | <.05 |
| 2 y after injury | 0.16 ± 0.69 | −0.03 ± 0.77 | <.001 |
| 3 y after injury | 0.35 ± 0.85 | 0.38 ± 1.08 | .236 |
| 4 y after injury | −0.20 ± 1.19 | 0.03 ± 1.12 | <.05 |
aData are reported as mean ± SD. Bolding indicates statistically significant difference between groups. ACL, anterior cruciate ligament.
bChange in player performance metric as compared with 1 year before index year (ie, time of injury for players with a complete ACL tear and index year for matched controls).