Closed Reduction With Anesthesia and no Anesthesia for Developmental Dislocation of the Hip < 6 Months

Study Overview
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Brief Summary
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The purpose of this study is to compare the efficacy of closed reduction with anesthesia and no anesthesia for developmental dislocation of the hip < 6 months

Detailed Description
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We treated children (<6 months) with prolonged traction before an attempted closed reduction. And compare the efficacy of closed reduction with anesthesia and no anesthesia for developmental dislocation of the hip. All the patients were followed up for a minimum of 18 months in order to identify any avascular changes in the femoral head. The presence of avascular necrosis was assessed by the criteria of Salter.

Official Title
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Clinical Analysis of Two Methods for Closed Reduction of Developmental Dislocation of the Hip by Prolonged Traction < 6 Months----An Multicenter Prospective Observational Study

Conditions
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Developmental Dislocation of the Hip, Reduction Deformity of Limb

Intervention / Treatment
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* Procedure: anesthesia


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: The patients with GrafⅢ/Ⅳtype DDH diagnosed by ultrasound or if they were IHDI (International Hip Dysplasia Institute) grade III or IV on radiographs，and The infants who were <6 months of age. Patients were followed for at least 18 months,by which time they had either completed treatment with no evidence of requiring further treatment or were treated surgically after failing brace treatment. Exclusion Criteria: Infants were excluded if they had multiple congenital abnormalities, had prior treatment in other centres, or showed teratological dislocations. The last were defined as fixed dislocation of the hip in association with either a recognised syndrome or a neurological disorder.

Ages Eligible for Study
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Minimum Age: 1 Day
Maximum Age: 6 Months

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| anesthesia<br>The children were treated with closed reduction with anesthesia after prolonged traction | Procedure: anesthesia<br>* no anesthesia<br>|
| No anesthesia<br>The children were treated with closed reduction with no anesthesia after prolonged traction | Procedure: anesthesia<br>* no anesthesia<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Successful treatment | obtain and maintain reduction of the hip following bracing with no subsequent surgical treatment | Through study completion, an average of 2 year. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Radiographic evaluation | Radiographic data collected included evaluation of the Shenton line, the acetabular index, the IHDI grade, the state of ossification of the femoral head, a description of the teardrop, the lateral center-edge angle, and the presence of osteonecrosis of the femoral head | Through study completion, an average of 2 year. |