title: Protrusio acetabuli in juvenile rheumatoid arthritis.
abstract: Acetabular protrusion (PA) as measured by a line crossing method was studied in 73 patients with juvenile rheumatoid arthritis (JRA) and its frequency found to be 12% (9/73), presenting bilaterally in 5 cases and unilaterally in 4. All patients had some other forms of radiological damage and the presence of PA was predominantly observed in the JRA group with greater age at onset (8 vs 4.2 years; p < 0.001) and lower frequency of extraarticular manifestations (22% vs 72%; p < 0.01). There was no correlation with type of JRA onset, course of disease, sex, disease duration, seropositivity for rheumatoid factor, and prior steroid intake.
authors: Rheumatology Department, Instituto Nacional de Rehabilitación, Buenos Aires, Argentina.
authors: S E
authors: SE
authors: Gusis
authors: J A
authors: JA
authors: Maldonado Cocco
authors: E M
authors: EM
authors: Rivero
authors: J C
authors: JC
authors: Babini
authors: S A
authors: SA
authors: Gagliardi
mesh_terms: D000077:Acetabulum / Q000000981:diagnostic imaging; D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000375:Aging / Q000502:physiology; D001171:Arthritis, Juvenile / Q000150:complications* / Q000000981:diagnostic imaging / Q000188:drug therapy; D002648:Child; D002675:Child, Preschool; D005260:Female; D006621:Hip Joint / Q000000981:diagnostic imaging; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D011859:Radiography; D012189:Retrospective Studies; D013997:Time Factors
chemical_list: D000305:Adrenal Cortex Hormones