Table 8.

Comparison of AP femoral head diameters and differences reported in the literature

Study	Femoral head diameter (mm)	Absolute difference (mm)
Asala [2]	WM, 48.4 ± 2.6 WF, 42.3 ± 2.4 AM, 44.5 ± 2.5 AF, 39.8 ± 2.1	ND
Ellis et al. [12]	47.2	ND
Hoaglund and Low [18]	WM, 46 WF, 43 CM, 45 CF, 40	ND
Kallio [21]		0.1 ± 0.9
Noble et al. [27]	46.1 ± 4.8	ND
Pierre et al. [28]	46	0 ± 2
Rawal et al. [31]	IM, 48.2 ± 2.3 IF, 42.3 ± 2.0	ND
Rubin et al. [33]	43.4 ± 2.6	ND
Sugano et al. [38]	44.9 ± 4.3	ND
Umer et al. [43]	50.1 ± 3.8	ND
Unnanuntana et al. [45]	M, 55.5 ± 3.2 F, 48.7 ± 2 Mean, 52.1 ± 4.4	0.9 ± 0.8
Current study	M, 55.8 ± 4.3 F, 48.3 ± 3.1 Mean, 52.0 ± 5.3	0.8 ± 0.7

Data are given as mean ± SD; M = male; F = female; WM = white male; WF = white female; AM = black male; AF = black female; CM = Chinese male; CF = Chinese female; IM = Indian male; IF = Indian female; ND = measurements were not done in this particular study.