A family with primary protrusio acetabuli.
The family of a child who developed symptoms and flexion contractures with protrusio acetabuli rapidly between the age of 8 and 11 was examined. The mother and one sib showed limitation of hip movements, while radiological criteria for protrusio were found in the mother and 4 of the proband's 8 sibs; only one had complained of pain. At the age of 16 the proband underwent bilateral total replacement arthroplasty; histologically the changes were those of fibrocartilaginous replacement and osteophyte formation.
D000077:Acetabulum / Q000002:abnormalities*; D000328:Adult; D002648:Child; D005260:Female; D005270:Femur Head / Q000000981:diagnostic imaging; D006617:Hip Dislocation / Q000000981:diagnostic imaging / Q000235:genetics*; D006621:Hip Joint / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D010375:Pedigree; D011859:Radiography; D013577:Syndrome