The Ischial Spine in Developmental Hip Dysplasia: Unraveling the Role of Acetabular Retroversion in Periacetabular Osteotomy

Table 2

Correlations of coxometric measurements with length of ischial spine.

		PRIS 1		PRIS 2		ISI
		r coefficient		r coefficient		r coefficient
CD		0.612	<0.001	0.466	<0.001	0.556	<0.001
RI		0.416	0.003	0.154	0.221	0.294	0.009

PRIS = prominence of the ischial spine; ISI = ischial spine index; CD = crossover distance; RI = retroversion index.