Table 1. Comparison of translations of the femur and the femoral condyles between ACL-deficient and normal knees at 6 flexion positions. Data are means (±SD).
Translation |
Extension |
15° |
30° |
60° |
90° |
120° |
(mm) |
ACLD |
normal |
ACLD |
normal |
ACLD |
normal |
ACLD |
normal |
ACLD |
normal |
ACLD |
normal |
AP |
Femur |
4.2(1.1) |
2.1(1.5)* |
7.2(2.7) |
4.6(2.2)* |
6.4(1.8) |
5.8(1.5) |
6.7(1.9) |
7.0(1.9) |
8.0(1.6) |
7.2(1.0) |
9.6(1.6) |
9.5(1.2) |
|
MC |
4.9(.7) |
5.3(1.4) |
4.1(1.1) |
3.7(1.6) |
2.5(1.3) |
2.5(1.2) |
2.5(0.9) |
2.8(1.7) |
2.6(1.1) |
2.2(1.0) |
4.1(1.3) |
4.4(0.6) |
|
LC |
3.4(2.3) |
-1.0(2.5)* |
10.7(4.7) |
5.6(3.2)* |
10.2(2.7) |
9.1(2.3) |
11.0(3.4) |
11.2(2.3) |
13.4(2.6) |
12.2(1.4) |
15.1(2.8) |
14.7(2.5) |
ML |
Femur |
5.7(1.1) |
5.1(1.1) |
4.6(1.0) |
3.8(1.1) |
3.5(1.0) |
3.7(0.5) |
2.8(0.8) |
3.2(1.2) |
2.6(1.2) |
3.2(.7) |
2.7(1.0) |
2.9(1.2) |
|
MC |
30.0(2.1) |
29.2(2.7) |
28.5(2.2) |
28.2(2.1) |
27.6(1.6) |
27.6(2.0) |
26.7(1.9) |
27.0(1.8) |
26.0(1.8) |
26.6(2.1) |
26.8(2.2) |
26.7(2.0) |
|
LC |
-18.5(2.9) |
-19.0(2.2) |
-19.6(2.8) |
-20.3(2.8) |
-20.5(3.0) |
-20.1(2.2) |
-21.1(2.7) |
-20.5(3.1) |
-20.8(3.4) |
-20.3(2.9) |
-21.4(2.5) |
-20.9(3.2) |
PD |
Femur |
24.7(1.6) |
24.8(2.0) |
22.2(1.7) |
22.6(1.5) |
22.3(1.8) |
22.0(1.6) |
22.0(1.4) |
22.0(1.8) |
21.3(1.6) |
22.1(2.2) |
20.8(1.8) |
21.3(1.6) |
|
MC |
22.7(2.2) |
23.2(2.2) |
20.1(2.2) |
20.6(1.5) |
20.1(2.4) |
20.1(1.6) |
19.9(1.9) |
20.1(2.0) |
19.7(2.0) |
20.4(1.9) |
19.3(2.4) |
19.6(1.2) |
|
LC |
26.7(1.2) |
26.4(2.0) |
24.3(1.3) |
24.6(1.7) |
24.5(1.4) |
23.9(1.8) |
24.2(1.0) |
23.9(1.9) |
23.0(1.3) |
23.9(2.7) |
22.3(1.5) |
23.0(2.3) |
* Significant change between ACL-deficient and normal knees (p < 0.05). Posterior, medial and proximal translations are positive. Anterior, lateral and distal translations are negative. ACLD: ACL-deficient. AP: anterior-posterior, ML: medial-lateral, PD: proximal-distal. MC: medial condyle, LC: lateral condyle.