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Economic evaluation of neonatal screening for congenital dislocation of the hip.

A study was undertaken to determine the cost benefit of neonatal screening for dislocatable and subluxable hips. As a follow-up to retrospective and prospective studies that established the safety and efficacy of early treatment to the newborn, this study discusses the direct and significant economic benefit of a neonatal hip screening program to the participating institutions. British Columbia's Grace and Children's Hospitals experienced an economic benefit of $15,143.71 (Canadian) per 1,000 infants screened.

Canada↗

Medial adductor open reduction for congenital dislocation of the hip.

Twenty-two consecutive patients with 26 dislocated hips were evaluated for a mean of 7 years after open reduction through a medial adductor approach. Severin classification of grade I or II and center-edge angles greater than 20 degrees were present in 73% of hips and 88% of patients treated between the ages of 5 and 14 months. Avascular necrosis (AVN) with partial head involvement occurred in 15% of hips and correlated positively with increased age at surgery, but did not preclude a satisfactory Severin classification. Best results were obtained in children treated between the ages of 5 and 14 months.

Child, Preschool↗

Congenital dislocation of the hip joint in northern Sweden.

The incidence of neonatally diagnosed congeital dislocation of the hip joint (CDH) was found to vary between three hospitals in Northern Seden. The incidence was 10.0, 7.1 and 3.5 per thousand in hospitals A, B and C, repectively. The incidence increased during the period 1960-73 in hospitals A and B, but not in hospital C. At these hospitals the number of cases needing prolonged orthopaedic treatment showed an inverse relationship to the incidence of neonatally diagnosed CDH.

Female↗

HLA antigens and congenital dislocation of the hip.

The HLA-A and B phenotypes of 42 Greek children with CDH were determined and compared to those of 400 controls. A significant deviation of the frequency of the antigen HLA-A1, (Pc less than 0.003) was noted. It is suggested that immunogenetic factors are contributing to the development of the disease.

Child↗

Late diagnosis of congenital dislocation of the hip.

A cohort of children presenting with clicking hips was studied in two districts. In one district any child with a clicking hip was treated as though the hip was dislocated, i.e. by splintage in abduction, but in the other district no treatment was offered. None of the 'treated' group later presented with a dislocated hip, whereas four children were found with dislocated hips among the 'untreated' group. A further four children who were not treated because their hips appeared to be normal on the second examination later presented with dislocated hips. It is suggested that the accuracy of diagnosis in all units might be improved if the examination of the newborn was carried out by a limited number of doctors to whom greater experience would accrue. Further improvements would be made if any hip which was found to click on examination was treated as an unstable hip and splinted in abduction.

Child, Preschool↗

Congenital dislocation of the hip in Norway. Late diagnosis CDH in the years 1970 to 1974.

A survey of 274 late detected cases of CDH born in the years 1970--74 is presented. The incidence of late cases in southeast Norway was calculated to 2.2 per 1 000 live births. The hips of all patients were examined at birth, the majority by trained pediatricians, without disclosing any hip affections. 86% were females. Only 6.9% were delivered in the breech position. One-half of the patients had luxation (20%) or subluxation (30%), the rest had dysplasia without dislocation. In 19% both hips were involved. The low incidence of breech presentations in late CDH-cases compared with the incidence among neonatal cases (15.7%) point to some etiological differences. It seems that we in Norway have two types of CDH, one caused by joint laxity and detectable at birth and another, not present at birth, with progressive dysplasia of the hip and dislocation developing during the first year of life.

Breech Presentation↗