title: Avascular necrosis after nonoperative treatment of developmental hip dislocation. Prognosis in 36 patients followed 17-26 years.
abstract: 36 children (61 hips) who had nonoperative treatment of developmental hip dislocation with the Frejka pillow and developed avascular necrosis were followed-up for an average of 20 (17-26) years. The radiographic pattern of necrosis was classified into 5 types. At final follow-up after completion of growth, the radiographic outcome was excellent in 11 hips, good in 21, fair in 19, and poor in 10 hips. There was a close correlation between the pattern of necrosis and the outcome: all the poor results were observed in cases with changes also involving the metaphysis.
authors.affiliation: Department of Orthopedics, Academy of Medicine, Poznan, Poland.
authors.forename: J
authors.initials: J
authors.lastname: Kruczynski
mesh_terms: D002675:Child, Preschool; D005260:Female; D005271:Femur Head Necrosis / Q000000981:diagnostic imaging / Q000209:etiology*; D005500:Follow-Up Studies; D006617:Hip Dislocation / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy*; D006618:Hip Dislocation, Congenital / Q000150:complications / Q000000981:diagnostic imaging / Q000628:therapy*; D006801:Humans; D008297:Male; D011379:Prognosis; D011859:Radiography; D016896:Treatment Outcome