The natural history of developmental dysplasia of the hip: sonographic findings in infants of 1-3 months of age.
until further notice
SourceJournal of Pediatric Orthopaedics-Part B, 14, 5, (2005), pp. 325-330
Article / Letter to editor
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Epidemiology, Biostatistics & HTA
Journal of Pediatric Orthopaedics-Part B
SubjectEBP 2: Effective Hospital Care; NCEBP 12: Human Reproduction; NCEBP 2: Evaluation of complex medical interventions; ONCOL 2: Age-related aspects of cancer; UMCN 1.5: Interventional oncology; EBP 2: Effective Hospital Care
The natural history of sonographic developmental dysplasia of the hip was determined in a population-based study in which 5170 infants were screened by ultrasound using Graf's method. Of the normal hips at the age of 1 month, 99.6% were still normal at the age of 3 months. Of the immature type IIa/IIa+ and type IIa- hips, if untreated, 95.3 and 84.4% had become normal, respectively. Of the infants with type IIc, D and III/IV hips at the age of 1 month 70, 58.3 and 90.9% were treated, respectively. This study shows that normal hips remain normal in nearly 100% of cases, but development to abnormality is possible. It shows also that most of the immature hips at the age of 1 month become normal without treatment. Although treatment seems to be indicated in the majority of sonographically abnormal hips, the occurrence of overtreatment could not be excluded in our study.
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