PURPOSE Developmental dysplasia of the hip (DDH) is common, and the term encompasses a spectrum of anatomical abnormalities of the hip in which the femoral head displaces from the acetabulum. These abnormalities may be congenital or develop during infancy and/or childhood. Neither the prenatal and postnatal factors that predispose to hip instability nor the determinants of its resolution or per...

Objectives: Closed reduction (CR) is a well-established method for treating developmental dysplasia of the hip (DDH). Traditionally, child placed in spica cast after DDH CR three to four months and it common practice change under general anesthesia 6–8 weeks. To our knowledge, no previous studies have shown that changing necessary. We hypothesize there need can be safely retained without any si...

PURPOSE To compare the results of Salter innominate osteotomy (SIO) for treatment of developmental dysplasia of the hip (DDH) in children. METHODS Between 1994 and 2002, 53 girls and 8 boys with DDH underwent open reduction and SIO; 21 were on the left side, 22 on the right side, 18 bilateral. They were divided into 2 groups: group 1 included 35 patients aged younger than 3 years (46 hips) an...

Biomechanical factors influencing the reduction of dislocated hips with the Pavlik harness in patients of Developmental Dysplasia of the Hip (DDH) were studied using a three-dimensional computer model simulating hip reduction dynamics in (1) subluxated and (2) fully dislocated hip joints. Five hip adductor muscles were identified as key mediators of DDH prognosis, and the non-dimensional force ...

Developmental hip dysplasia (DDH) is a deformation of the locomotor system that can occur on previously normal bone structures in late fetal development. The study was undertaken to determine the value of continuous ultrasound screening in early diagnosis of DDH. In the area covered by the Labin Primary Health Center, clinical and ultrasound examination of the hips was performed in all children...

PURPOSE Spica magnectic resonance imaging (MRI) is an established technique for postoperative determination of hip reduction in patients treated for developmental dysplasia of the hip (DDH). A hip abduction angle >55° is considered excessive and has been associated with epiphyseal osteonecrosis. Our purpose was to establish objective criteria for measuring hip abduction angles on MRI after hip ...

This study aimed to evaluate the outcome of one-stage treatment for developmental dysplasia of the hip (DDH) in patients after walking age. A Total of 58 children (67 hips) were retrospectively investigated to assess the efficacy and safety of one-stage treatment of developmental dysplasia of the hip (DDH) in children from 1.5 to 6 years of age with a mean follow-up of 4.00±0.43 (range 3-6.8) y...

Although developmental dysplasia of the hip (DDH) is a relatively common disorder, its aetiology remains elusive. The authors undertook a systematic review to determine whether there is an association between DDH and vaginal or caesarean delivery for singleton breech infants. The review focussed on cohort studies which provided risk estimates for DDH in breech-presenting infants, as a function ...

We studied the morphometry of 35 femora from 31 female patients with developmental dysplasia of the hip (DDH) and another 15 from 15 age- and sex-matched control patients using CT and three-dimensional computer reconstruction models. According to the classification of Crowe et al 15 of the dysplastic hips were graded as class I (less than 50% subluxation), ten as class I/III (50% to 100% sublux...

PURPOSE Genetic basis of Developmental dysplasia of the hip (DDH) remains largely unknown. To find new susceptibility genes for DDH, we carried out a genome-wide association study (GWAS) for DDH. METHODS We enrolled 386 radiology confirmed DDH patients and 558 healthy controls (Set A) to conduct a genome-wide association study (GWAS). Quality-control was conducted at both the sample and singl...