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Table 2 Values of radiographic parameters of both groups with corresponding p-values. SD: standard deviation. n.s.: not significant. Note: “minus sign” of values if distal line in relation to proximal line of the angle directs towards abduction in the d.-p. view or elevation in the lateral view

From: Is it possible to define reference values for radiographic parameters evaluating juvenile flatfoot deformity? A case-control study

View Parameter Mean (±SD) p-value
Group 1 Group 2
d.-p. Talocalcaneal angle 21.6(±4.5) 22.6 (±7.2) n.s.
Talonavicular coverage −17.1(±7.5) −34.1(±8.3) < 0.01
Talo-first-metatarsal-base angle −10.0(±4.9) −21.3(±6.9) < 0.01
Calcaneus-fifth-metatarsal angle −5.2(±4.9) −12.0 (±4.9) n.s.
Talo-first-metatarsal angle −5.0 (±5.1) −13.9(±7.7) < 0.01
Lateral Calcaneal-pitch angle 19.0(±5.8) 12.2(±5.3) n.s.
Costa-Bartani angle 125.5(±5.9) 141.4(±7.2) < 0.01
Talo-first-metatarsal angle −12.1(±5.7) −30.5 (±9.3) < 0.01
Talocalcaneal angle 53.5(±7.5) 60.1 (±6.3) n.s.
d.-p. and lateral Talometatarsal index −22.1(±8.4) −58.1(±13.7) < 0.01
Talocalcaneal index 75.1(±9.0) 82.7(±7.5) n.s.