Research Article
Femoral Head Coverage Assessment in Healthy Children Younger than 6 Years
Table 1
Reference values of normal FH coverage by different acetabular regions in boys and girls aged 1–6 y.o.
| | FHC | Male | Mean
(±std. dev.)
Minimum/maximum | Female | Mean | | (±std. dev.) | | Minimum/maximum |
| | y.o. | AC | S-AC | S-PC | P-SC | P-IC | AC | S-AC | S-PC | P-SC | P-IC | | 1 | 19.44
(±15.7)
0/38 | 89.05
(±3.76)
81/100 | 86.29
(±3.38)
77/94 | 50.14
(±5.12)
44/62 | 50.2
(±5.06)
39/60 | 14.54
(±17.6)
0/41 | 88.9
(±5.0)
79/97 | 84.72
(±5.43)
73/92 | 49.04
(±6.79)
34/58 | 51.31
(±5.99)
42/64 | | 2 | 28.57
(±9.98) 5/41 | 92.35
(±6.74)
83/103 | 90.78
(±5.28)
84/99 | 53.92
(±3.56)
47/60 | 53.42
(±5.41)
43/60 | 33.93
(±4.5)
25/41 | 100.87
(±30.09)
78/211 | 91.06
(±6.14)
76/98 | 56.93
(±5.3)
50/66 | 57.87
(±5.94)
50/67 | | 3 | 36.1
(±4.48)
27/43 | 98.2
(±4.2)
90/107 | 96.45
(±3.45) 89/103 | 63.1
(±2.8)
57/68 | 60.85
(±4.03)
53/68 | 30.72
(±15.28)
0/47 | 94.22
(±5.48)
84/104 | 92.5
(±7)
70/100 | 61.16
(±6.47)
49/72 | 63.22
(±6.3)
52/71 | | 4 | 35.07
(±8.97)
11/44 | 96.15
(±4.28)
89/105 | 95.57
(±3.94)
88/103 | 61.92
(±3.59)
57/71 | 62.03
(±3.9)
55/68 | 34.54
(±11.28)
8/48 | 95.68
(±4.86)
87/106 | 94.63
(±5.42)
83/102 | 61.45
(±7.31)
42/71 | 63.45
(±7.23)
47/71 | | 5 | 41.61
(±4.56)
35/50 | 100.15
(±5.37)
90/109 | 99.53
(±3.92)
91/106 | 66.19
(±3.8)
58/73 | 64.11
(±4.06)
59/75 | 41.24
(±9.83)
28/57 | 99.35
(±4.41)
92/104 | 100.85
(±3.69)
94/106 | 69.64
(±7.84)
59/85 | 66.5
(±5.53)
59/78 | | 6 | 41.72
(±4.8)
30/51 | 100.63
(±4.12)
92/107 | 100.44
(±4.39)
92/110 | 68.86
(±5.57)
55/79 | 66.77
(±5.13)
56/76 | 43.18
(±6.93)
30/54 | 99.54
(±4.87)
91/108 | 101.04
(±4.69)
92/110 | 71.77
(±5.25)
61/84 | 69.9
(±3.57)
63/79 |
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FHC: femoral head coverage; y.o.: years old; AC: anterior coverage; S-AC: superior-anterior coverage; S-PC: superior-posterior coverage; P-SC: posterior-superior coverage; P-IC: posterior-inferior coverage; std. dev: standard deviation.
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