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Table 1 Side-to-side differences of anatomical landmarks with respect to the ankle joint line

From: A novel approach for joint line restoration in revision total ankle arthroplasty based on the three-dimensional registration of the contralateral tibia and fibula

 

Left

Right

Absolute side-to-side difference

p-value

ICC (95% CI; p-value)

Fibular tip to JL (mm)

22.0 ± 3.7

(14.1 to 29.1)

21.9 ± 3.9

(14.7 to 28.8)

1.4 ± 1.1

(0 to 5.9)

0.702

0.96 (0.92–0.98; p < 0.001)

Anterior medial colliculus to JL (mm)

12.7 ± 1.9

(7.9 to 15.7)

12.9 ± 1.9

(6.9 to 16.3)

0.8 ± 0.7

(0 to 3.0)

0.390

0.78 (0.56–0.89; p < 0.001)

Posterior medial colliculus to JL (mm)

7.5 ± 1.8

(3.8 to 10.8)

7.8 ± 2.0

(2.5 to 12.5)

0.8 ± 0.8

(0 to 4.3)

0.079

0.87 (0.74–0.94; p < 0.001)

ADTA (°)

82.8 ± 2.3

(78.6 to 88.7)

82.6 ± 2.6

(77.8 to 89.7)

1.6 ± 1.1

(0 to 5.6)

0.773

0.72 (0.47–0.85; p < 0.001)

LDTA (°)

87.7 ± 2.0

(80.8 to 89.9)

87.3 ± 2.4

(81.1 to 89.9)

1.7 ± 1.4

(0 to 6.0)

0.238*

0.79 (0.60–0.89; p < 0.001)

  1. Mean ± standard deviation (range) are reported. *Wilcoxon's rank sum-test, remaining paired t-test
  2. JL Joint line, ADTA Anterior distal tibia angle, LDTA Lateral distal tibia angle, ICC Intraclass correlation coefficient, CI Confidence interval