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Table 2 Femoral-tunnel length with 3-dimensional (3D) drilling angle through the anteromedial (AM) portal with and without notchplasty

From: Anterior cruciate ligament femoral-tunnel drilling through an anteromedial portal: 3-dimensional plane drilling angle affects tunnel length relative to notchplasty

3D entrance angle (coronal/axial/sagittal)

Before notchplasty (mm)

After 3 mm notchplasty (mm)

After 5 mm notchplasty (mm)

P value

20o/70o/45o

34.09 ± 2.99

31.73 ± 2.47

30.38 ± 2.11

0.002

30o/60o/45o

36.11 ± 2.28

33.08 ± 2.15

31.26 ± 2.08

< 0.001

45o/45o/45o

38.45 ± 3.63

35.06 ± 3.25

32.98 ± 3.04

< 0.001

60o/30o/45o

46.28 ± 4.34

42.78 ± 3.19

40.31 ± 3.36

0.019

75o/15o/45o

54.01 ± 4.08

52.87 ± 3.50

50.46 ± 3.13

0.043