Skip to main content

Table 4 The sonographic measurement of the α angle, FHC of more than 50% and HID

From: Natural history of hip instability in infants (without subluxation or dislocation): a three year follow-up

Measurement Coronal neutral Coronal flexion Coronal flexion adduction
  n   SD range n   SD range n   SD range
α angle [°] 39 59.9* 4.9 49-69 44 59.8* 4.5 49-70 45 58* 5.1 47-72
50% FHC [%] 45 57.1#   36.8-90.7 50 55.3* 11.4 26.1-75.9 49 49.6* 10.6 28.3-77.3
HID [mm]   5.2#   2.4-8.3   5.13# 1.39 2.9-10.3   5.7#   3.4-8.6
  1. *mean, #median, 50% FHC - 50% femoral head coverage, HID - distance measured between the femoral head and the shadow of ischium bone. We did not find any statistically important difference in samples as well as in subgroups with regard to the α angle, FHC of more than 50% and HID.