Table 2.
Comparison of the static and dynamic postural stability and the knee muscle strength in both knees between ACL rupture combined with MM tear and combined with LM tear groups
| Involved knee | Uninvolved knee | |||||
|---|---|---|---|---|---|---|
| ACL rupture with MM tear | ACL rupture with LM tear | p value | ACL rupture with MM tear | ACL rupture with LM tear | p value | |
| Static OSI | 1.7 ± 1.0 | 1.8 ± 0.9 | 0.659 | 1.6 ± 0.7 | 1.6 ± 0.4 | 0.948 |
| MD (95% CI) | − 0.1 (− 0.5, 0.3) | 0 (− 0.2, 0.3) | ||||
| Static APSI | 1.3 ± 0.9 | 1.4 ± 0.8 | 0.600 | 1.2 ± 0.6 | 1.3 ± 0.6 | 0.515 |
| MD (95% CI) | − 0.1 (− 0., 0.3) | − 0.1 (− 0.3, 0.2) | ||||
| Static MLSI | 1.2 ± 0.9 | 1.2 ± 0.8 | 0.852 | 1.1 ± 0.7 | 1.0 ± 0.5 | 0.513 |
| MD (95% CI) | 0 (− 0.3, 0.4) | 0.1 (− 0.2, 0.3) | ||||
| Dynamic OSI | 1.6 ± 0.5 | 2.0 ± 0.8 | 0.001a | 1.7 ± 0.6 | 1.8 ± 0.6 | 0.619 |
| MD (95% CI) | − 0.5 (− 0.8, − 0.2) | − 0.1 (− 0.3, 0.2) | ||||
| Dynamic APSI | 1.3 ± 0.5 | 1.5 ± 0.6 | 0.023a | 1.3 ± 0.5 | 1.3 ± 0.6 | 0.651 |
| MD (95% CI) | −0.3 (− 0.5, 0) | 0 (− 0.3, 0.2) | ||||
| Dynamic MLSI | 0.9 ± 0.4 | 1.0 ± 0.5 | 0.328 | 1.0 ± 0.5 | 0.9 ± 0.4 | 0.154 |
| MD (95% CI) | −0.1 (− 0.3, 0.1) | 0.1 (0, 0.3) | ||||
| Quadriceps strength | 109 ± 44.1 | 111 ± 42.4 | 0.819 | 200 ± 40.1 | 202 ± 38.9 | 0.811 |
| MD (95% CI) | −2.0 (−20.1, 15.9) | −2.0 (−18.5, 14.5) | ||||
| Hamstring strength | 49 ± 27.2 | 61 ± 31.6 | 0.078 | 100 ± 21.9 | 110 ± 27.2 | 0.062 |
| MD (95% CI) | −12 (−23.1, 1.3) | −10 (− 19.7, 0.5) | ||||
Values expressed as mean ± standard deviation
Measurement unit of postural stability and knee muscle strength was degrees and Newton meter per kilogram, respectively
ACL anterior cruciate ligament, APSI anterior–posterior stability index, CI confidence interval, LM lateral meniscus, MD mean difference, MLSI medial–lateral stability index, MM medial meniscus, OSI overall stability index
aStatistically significant