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Table 3 Correlation coefficient between each parameter in the normal and DDH groups

From: The anteroposterior axis of the tibia is adjusted to approximately a right angle to the anterior pelvic plane in the standing position in patients with hip dysplasia similar to normal subjects: a cross-sectional study

  FNA (deg) CTA (deg) KRA (deg) APP-FNA (deg) APP-CEA (deg) APP-tibia AP axis (deg)
FNA (deg)   0.085 0.130 0.421* − 0.352* − 0.009
0.365 0.319 0.433* − 0.451* − 0.176
CTA (deg)    − 0.211 0.142 0.176 0.096
0.505* 0.205 − 0.042 0.338
KRA (deg)     0.086 − 0.218 − 0.214
0.107 − 0.181 0.266*
APP-FNA (deg)      − 0.396* − 0.077
0.410* 0.226
APP-CEA (deg)       0.048
0.375*
  1. Upper row: normal group; lower row: DDH group
  2. AP anteroposterior, APP anterior pelvic plane, APP-CEA clinical epicondylar axis relative to APP, APP-FNA FNA relative to APP, CTA condylar twist angle, FNA femoral neck anteversion, KRA knee rotation angle
  3. *p < 0.05