Table 1.

3D-Measurement of geometrical parameters

Necrosis	CVO angle	FHC (mm2)	WBA (mm2)	Intact area (mm2)	Intact ratio
Type A	0	2776.06	1971.59	1795.18	0.91
	15	2808.67	2001.17	1927.44	0.96
	20	2816.22	1998.32	1952.64	0.98
	25	2856.75	2015.33	1993.78	0.99
	30	2874.13	2018.79	1997.84	0.99
Type B	0	2776.06	1971.59	1502.76	0.76
	15	2808.67	2001.17	1635.54	0.82
	20	2816.22	1998.32	1677.76	0.84
	25	2856.75	2015.33	1749.82	0.87
	30	2874.13	2018.79	1834.20	0.91
Type C1	0	2776.06	1971.59	1457.45	0.74
	15	2808.67	2001.17	1497.21	0.75
	20	2816.22	1998.32	1507.74	0.75
	25	2856.75	2015.33	1560.04	0.77
	30	2874.13	2018.79	1597.72	0.79

FHC femoral head coverage, WBA weight-bearing area