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Table 3 ATFL: anterior talofibular ligament; DL: deltoid ligament. Absolute values for preoperative radiographic parameters with additional stratified population into “isolated ATFL injury”, “combined ATFL and deltoid ligament injury”, and “No ATFL injury”

From: Anterior talofibular ligament lesion is associated with increased flat foot deformity but does not affect correction by lateral calcaneal lengthening

  Isolated ATFL injury (n = 15) Combined ATFL – DL injury (n = 20) No ATFL injury (n = 29)
Talometatarsale-angle (°)
 Median 12.5 19.0 8.0
 Min - max 2.0–25.0 1.0–32.0 0.5–15.0
p-Value 0.002
Calcaneal inclination-angle (°)
 Median 16.5 17.0 17.0
 Min - max 8.5–23.5 7.5–26.5 10.0–25.0
p-Value 0.861
Talocalcaneal-angle (°)
 Median 47.5 52.5 45.0
 Min - max 38.5–53.0 38.5–64.5 30.0–59.0
p-Value 0.001
Talonavicular uncoverage-angle (°)
 Median 25.0 31.5 21.5
 Min - max 11.5–53.0 10.5–46.0 −10.0 – 42.0
p-Value 0.020