The Incidence of Occult Dysplasia of the Contralateral Hip in Children With Unilateral Hip Dysplasia

Song, Frederick S.; McCarthy, James J.; Gd, MacEwen; Fuchs, Katherine E.; Dulka, Susan E.

doi:10.1097/bpo.0b013e318164ee2d

Cited by 26 publications

(22 citation statements)

References 8 publications

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“…Although the left hip is typically more involved in those with unilateral dysplasia, there is significant ethnic variability, 44% in Indo-Mediterraneans to 81.4% in Caucasians from Australia/New Zealand (Figure 3(c)). The prevalence of mild adult acetabular dysplasia in children with documented unilateral DDH is up to 40% [233]. …”

Section: Resultsmentioning

confidence: 99%

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The Epidemiology and Demographics of Hip Dysplasia

2011

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The etiology of developmental dysplasia of the hip (DDH) is unknown. There are many insights, however, from epidemiologic/demographic information. A systematic medical literature review regarding DDH was performed. There is a predominance of left-sided (64.0%) and unilateral disease (63.4%). The incidence per 1000 live births ranges from 0.06 in Africans in Africa to 76.1 in Native Americans. There is significant variability in incidence within each racial group by geographic location. The incidence of clinical neonatal hip instability at birth ranges from 0.4 in Africans to 61.7 in Polish Caucasians. Predictors of DDH are breech presentation, positive family history, and gender (female). Children born premature, with low birth weights, or to multifetal pregnancies are somewhat protected from DDH. Certain HLA A, B, and D types demonstrate an increase in DDH. Chromosome 17q21 is strongly associated with DDH. Ligamentous laxity and abnormalities in collagen metabolism, estrogen metabolism, and pregnancy-associated pelvic instability are well-described associations with DDH. Many studies demonstrate an increase of DDH in the winter, both in the northern and southern hemispheres. Swaddling is strongly associated with DDH. Amniocentesis, premature labor, and massive radiation exposure may increase the risk of DDH. Associated conditions are congenital muscular torticollis and congenital foot deformities. The opposite hip is frequently abnormal when using rigorous radiographic assessments. The role of acetabular dysplasia and adult hip osteoarthritis is complex. Archeological studies demonstrate that the epidemiology of DDH may be changing.

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Section: Resultsmentioning

confidence: 99%

“…The opposite hip in “unilateral DDH” children often develops abnormally: 14% [460], 31% [461], 34% [462], and 43% [233]. The center-edge angle is the most predictive single measurement of delayed acetabular development while the overall best predictor is the hip ratio (CE angle + 100(acetabular depth/acetabular diameter))/2 [461].…”

Section: Resultsmentioning

confidence: 99%

The Epidemiology and Demographics of Hip Dysplasia

2011

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“…Another study evaluated children with unilateral hip dysplasia for a contralateral hip dysplasia that was not apparent with thorough and recurring evaluations early in childhood. The authors showed that mild dysplasia of the hip can develop as the child grows older [175] . This emphasizes the significance of thorough and recurring clinical and radiographic examinations.…”

Section: Follow-upmentioning

confidence: 99%

Developmental dysplasia of the hip: What has changed in the last 20 years?

Kotlarsky

Reuben

Bialik

et al. 2015

WJO

255

244

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“…The author (David et al, 2015) in their study found a 4% recurrent dysplasia after successful treatment of DDH so they recommended follow-up to 6 month of infant age. (Song et al, 2008) reported that the hipdysplasia of mild severity could develop as the child grows older even with successful treatment by Pavlik harness.…”

Section: Resultsmentioning

confidence: 99%