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Table 3 Summary of the total area of the nutrient foramina for given size of nutrient foramina at each site

From: Total cross-sectional area of the femoral neck nutrient foramina measured to assess arterial vascular beds in the femoral head

Size of nutrient foraminaSuperior retinacular arteriesInferior retinacular arteriesAnterior retinacular arteriesLigamentum teres arteries
nmean±SDrange
(min., max.)
nmean±SDrange
(min., max.)
nmean±SDrange
(min., max.)
nmean±SDrange
(min., max.)
D > 2 mm244.47 ± 1.69(3.2 , 9.75)54.04 ± 0.86(3.3 , 5.51)15.51-24.07 ± 0.43(3.76 , 4.37)
1.5 mm ≤ D ≤ 2 mm543.73 ± 1.98(1.77 , 10.11)192.34 ± 0.35(1.84 , 3.08)152.3 ± 0.58(1.77 , 3.85)11.77-
1 mm ≤ D < 1.5 mm975.09 ± 3.1(0.82 , 15.2)661.73 ± 0.94(0.8 , 5.88)642.13 ± 1.26(0.8 , 5.49)171.24 ± 0.42(0.83 , 2.17)
0.5 mm ≤ D < 1.0 mm1007.07 ± 2.61(1.81 , 18.22)981.8 ± 1.06(0.2 , 5.83)1002.4 ± 1.29(0.31 , 7.02)471.14 ± 0.91(0.28 , 5.09)
D < 0.5 mm920.54 ± 0.37(0.07 , 2.01)460.19 ± 0.14(0.07 , 0.87)580.28 ± 0.19(0.07 , 1.04)160.24 ± 0.16(0.08 , 0.69)
  1. Abbreviations: D, diameter; SD, standard deviations; min., minimum; max., maximum