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Table 2 Anatomic parameters of the PCL tibial attachment among the three age groups in malesa

From: MRI analysis of tibial PCL attachment in a large population of adult patients: reference data for anatomic PCL reconstruction

Variable

Mean ± Standard Deviation

P

The Young (n = 145)

The Middle-aged (n = 170)

The Old (n = 64)

Total

The Young vs the Middle-aged

The Young vs the Old

The Middle-aged vs the Old

APD, mm

36.2 ± 3.0

35.4 ± 3.0

34.3 ± 2.9

.000

.021

.000

.010

α, °

120.9 ± 7.5

123.7 ± 8.2

123.4 ± 7.7

.005

.002

.035

.796

PTS, mm

24.4 ± 3.7

23.2 ± 3.5

22.8 ± 3.1

.003

.005

.004

.407

L1, mm

14.6 ± 3.2

14.0 ± 3.1

13.9 ± 3.2

.144

.072

.145

.920

L2, mm

19.5 ± 3.2

18.6 ± 3.0

18.4 ± 2.9

.014

.012

.016

.600

L3, mm

10.6 ± 2.4

10.0 ± 2.6

9.3 ± 2.3

.002

.027

.001

.077

L1/PTS, %

60.0 ± 9.0

60.2 ± 9.8

60.8 ± 9.6

.836

.822

.550

.661

L2/PTS, %

80.0 ± 4.5

80.1 ± 4.9

80.4 ± 4.8

.836

.822

.550

.661

L3/PTS, %

43.8 ± 9.1

43.1 ± 10.5

41.1 ± 10.0

.203

.532

.075

.179

L4, mm

16.7 ± 3.5

15.4 ± 3.3

15.3 ± 3.3

.002

.001

.007

.801

  1. aAPD anterior-posterior diameter, α the angle between the tibial plateau and the posterior tibial ‘shelf’, PTS posterior tibial ‘shelf’, L1 distance from the proximal position of the tibial PCL attachment to the tibial plateau, L2 distance from the central position of the tibial PCL attachment to the tibial plateau, L3 width of the tibial PCL attachment site, L4 the vertical dimension of the PCL attachment site from the center of the PCL attachment perpendicularly to a line along the tibial plateau
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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