Study Status: Completed
Recruit Status: Completed
Study Type: Observational
Official Title: Clinical Analysis of Two Methods for Closed Reduction of Developmental Dislocation of the Hip by Prolonged Traction < 6 Months----An Multicenter Prospective Observation
Brief Summary: 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