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Table 2 Results of linear correlation analysis between the variables

From: The effect of knee joint rotation in the sagittal and axial plane on the measurement accuracy of coronal alignment of the lower limb

 

r value*

P value

ΔmTFA and sagittal plane rotation of the knee

 Overall cohort (N = 180)

0.368

< 0.001

 Knee flexion group (N = 109)

0.399

< 0.001

 Knee extension group (N = 71)

−0.139

n.s.

 Knee internal rotation group (N = 90)

0.644

< 0.001

 Knee external rotation group (N = 90)

0.210

0.047

ΔmTFA and axial plane rotation of the knee

 Overall cohort (N = 180)

0.018

n.s.

 Knee flexion group (N = 109)

0.075

n.s.

 Knee extension group (N = 71)

−0.111

n.s.

 Knee internal rotation group (N = 90)

0.075

n.s.

 Knee external rotation group (N = 90)

−0.011

n.s.

Sagittal plane rotation and axial plane rotation of the knee

 Overall cohort (N = 180)

−0.015

n.s.

 Knee flexion group (N = 109)

−0.036

n.s.

 Knee extension group (N = 71)

0.059

n.s.

 Knee internal rotation group (N = 90)

0.027

n.s.

 Knee external rotation group (N = 90)

−0.05

n.s.

  1. *The correlation coefficient
  2. †The analyses were based on absolute value
  3. ΔmTFA, absolute value of delta mechanical tibio-femoral angle