Acetabulum Female 4 Hip Joint 4 Human 4 Male 4 Protrusio Acetabuli 4 Retrospective Studies 4 article 4 female 4 human 4 major clinical study 4 male 4 Acetábulo 2 Adrenal Cortex Hormones 2 Adult 2 Aging 2 Arthritis, Juvenile Rheumatoid 2 Arthritis, Rheumatoid 2 Child 2 Child, Preschool 2 Dislocations 2 Hip 2 Hip Arthritis 2 Juvenile Rheumatoid Arthritis 2 Radiology 2 Rheumatoid Arthritis 2 Time Factors 2 acetabulum 2 adult 2 aged 2