Table 1.

Demographic data of the clinical radiographic series

Parameter	Value
Number of patients (hips)	113 (129)
Number of bilateral hips	16
Age (years)	35.1 ± 11.5 (15.3–61.3)
Gender (percent male of all hips)	59.7
Side (percent right of all hips)	60.4
Weight (kg)	72.9 ± 16.7 (47.3–133)
Height (m)	1.70 ± 0.07 (1.4–1.85)
Body mass index (kg/m2)	24.9 ± 5.0 (18.6–41.9)
Tilt around the interacetabular axis (degrees)	5.2 ± 6.5 (−10–19)
Rotation around the longitudinal axis (degrees)	0.3 ± 2.3 (−9.7–5.2)
Apparent retroversion on radiographs (percent of all hips)	87.4

Values of continuous parameters are expressed as mean ± standard deviation with ranges in parentheses.