Table 2. The anteroposterior and rotational stability of involved knees from DB and SBL Stabilityreconstruction groups.
Group 3 months Statistical test 6 months Statistical test 12 months Statistical test
Anterior drawer testPositive-Rate DB 20% χ²= 0.254
P= 0.613
20% χ²= 0.254
P= 0.613
20% χ²= 0.254
P= 0.613
SBL 25% 25% 25%
Lachman testPositive-Rate DB 20% χ²= 0.284
P= 0.593
20% χ²= 0.284
P= 0.593
20% χ²= 0.284
P= 0.593
SBL 25% 25% 25%
Stress radiographyD-Value (I/N) DB 4.4 ± 0.3 mm Duncan
n.s.
4.8 ± 0.4 mm Duncan
n.s.
5.1 ± 0.3 mm Duncan
n.s.
SBL 4.6 ± 0. 3 mm 5.0 ± 0.3 mm 5.3 ± 0.4 mm
KT-2000D-Value (I/N) DB 3.8 ± 0.2 mm Duncan
n.s.
3.9 ± 0.2 mm Duncan
n.s.
3.2 ± 0.2 mm Duncan
n.s.
SBL 4.0 ± 0.2 mm 3.9 ± 0.2 mm 3.4 ± 0.2 mm
Pivot-shift testPositive-Rate DB 20% χ²= 0
P= 1
20% χ²= 0
P= 1
20% χ²= 0
P= 1
SBL 20% 20% 20%
RotameterD-Value (I/N) DB 1.1 ± 0.2 mm Duncan
n.s.
1.1 ± 0.2 mm Duncan
n.s.
1.2 ± 0.2 mm Duncan
n.s.
SBL 1.0 ± 0.2 mm 1.0 ± 0.2 mm 1.1 ± 0.2 mm
DB: anatomic double-bundle ACL reconstruction group, SBL: anatomic single-bundle ACL reconstruction + ALL reconstruction group, D-Value: Difference-Value, I/N: Involved vs Normal, n.s.: no significance