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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 4 T-test analysis of morphology of the femoral trochlea with pFA ≥ 20° and pFA < 20°

From: High femoral anteversion in osteoarthritic knees, particularly for severe valgus deformity

Parameter

Total ° (SD; range)a

pFA ≥ 20° (SD; range)a

pFA < 20° (SD; range)a

p

Sulcus angle

142.3 (10.4; 120.5 to 169.4)

144.6 (12.7; 121.9 to 167.7)

141.3 (9.35; 120.5 to 169.4)

0.024*

Lateral trochlea slope

23.1 (4.89; 4.30 to 39.9)

22.6 (4.39; 12.6 to 32.0)

23.4 (5.08; 4.30 to 39.9)

0.298

Medial trochlea slope

14.6 (8.60; − 9.90 to 29.6)

12.7 (10.0; − 9.20 to 27.6)

15.3 (7.81; − 9.90 to 29.6)

0.032*

Lateral trochlea height

36.1 (2.61; 28.5 to 44.3)

35.8 (1.97; 32.1 to 41.3)

36.3 (2.84; 28.5 to 44.3)

0.210

Medial trochlea height

28.6 (2.56; 22.8 to 38.0)

28.4 (1.93; 23.4 to 34.3)

28.8 (2.79; 22.8 to 38.0)

0.298

Lateral trochlea height relative to body height

0.23 (0.01; 0.19 to 0.28)

0.23 (0.01; 0.21 to 0.28)

0.23 (0.02; 0.19 to 0.28)

0.739

Medial trochlea height relative to body height

0.18 (0.01; 0.15 to 0.22)

0.18 (0.01; 0.15 to 0.22)

0.18 (0.01; 0.15 to 0.22)

0.998

Bianterior condyle ratio

1.27 (0.08; 1.03 to 1.45)

1.26 (0.07; 1.12 to 1.44)

1.27 (0.09; 1.03 to 1.45)

0.607

  1. pFA femoral anteversion based on the posterior condylar line, tFA femoral anteversion based on the clinical transepicondylar axis
  2. * p < 0.05; ** p < 0.01
  3. aValues are given as the median, with the standard deviation and range in parentheses