Safety of surgical hip dislocation in femoral head fracture and dislocation (FHFD) and avascular necrosis risk factor analysis of FHFD: midterm results confirmed by SPECT/CT and MRI

Table 4 Multivariate regression analyses of cases with avascular necrosis of head

	Beta	F	p value
Sex (male)	0.059	0.255	0.617
Age (years)	0.080	0.956	0.337
Injury mechanism (traffic accident)	0.011	0.135	0.716
Combined injury (yes)	− 0.003	0.002	0.968
With neck fracture	0.819	26.014	0.000
With acetabular fracture	0.095	0.865	0.361

ISSN: 1749-799X