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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 The average anatomical location of the tibial ACL footprint in Chinese and Caucasians

From: Significant race and gender differences in anterior cruciate ligament tibial footprint location: a 3D-based analysis

Reference point

Measurement direction and units

ACL footprint location (mean ± sd)

P value

Chinese

Caucasian

tACS

A/P (mm)

17.1 ± 2.3

20.0 ± 3.4

 < 0.001***

M/L (mm)

34.2 ± 2.4

37.4 ± 3.6

 < 0.001***

Normalized A/P (%)

31.5 ± 4.2

35.3 ± 6.0

 < 0.001***

Normalized M/L (%)

45.2 ± 3.2

47.9 ± 4.6

 < 0.001***

Posteromedial ARLM

A/P (mm)

1.4 ± 2.1

1.2 ± 2.3

 = 0.543

M/L (mm)

8.2 ± 3.0

6.7 ± 2.4

 < 0.001***

Normalized A/P (%)

2.6 ± 3.9

2.1 ± 4.1

 = 0.403

Normalized M/L (%)

10.8 ± 4.0

8.6 ± 3.1

 < 0.001***

Peak of MTS

A/P (mm)

13.2 ± 2.8

11.6 ± 2.1

 < 0.001***

M/L (mm)

4.3 ± 1.5

5.2 ± 2.4

 = 0.003**

Normalized A/P (%)

24.3 ± 5.2

20.5 ± 3.7

 < 0.001***

Normalized M/L (%)

5.7 ± 2.0

6.7 ± 3.1

 = 0.011*

  1. ACL anterior cruciate ligament, A/P anteroposterior, M/L mediolateral, ARLM Anterior root of the lateral meniscus, MTS medial tibial spine, tACS tibial anatomical coordinate system
  2. * 0.01 < P < 0.05; **, 0.001 < P< 0.01; ***, P < 0.001