Table 4. The involved knee function and sports level score from DB and SBL reconstruction groups. Group 3 months Statistical test 6 months Statistical test 12 months Statistical test IKDC score DB 73.9 ± 2.0 F= 1.55 P= 0.22 89.6 ± 1.8 Duncan n.s. 95.1 ± 0.9 Duncan n.s. SBL 74.9 ± 3.2 88.2 ± 3.2 96.2 ± 1.6 Lysholm score DB 80.1 ± 1.9 F= 2.96 P= 0.06 86.2 ± 3.1 Duncan n.s. 95.2 ± 0.9 Duncan n.s. SBL 81.4 ± 3.3 90.9 ± 1.8 96.3 ± 1.6 Tegner score DB 3.6 ± 0.3 F= 2.99 P= 0.06 4.5 ± 0.3 Duncan n.s. 6.0 ± 0.4 Duncan n.s. SBL 3.4 ± 0.3 4.8 ± 0.3 6.3 ± 0.3 DB: anatomic double-bundle ACL reconstruction group, SBL: anatomic single-bundle ACL reconstruction + ALL reconstruction group. n.s.: no significance