ARTHROGRAPHIC EVALUATION OF DEVELOPMENTAL DYSPLASIA OF THE HIP - OUTCOME PREDICTION

Arthrograms of 35 hips in 33 children less than 2 years of age with ty pical developmental dysplasia of the hip were reviewed. After arthrogr ams were repeated for 11 hips 6 weeks following the initial test, resu lts were classified into 6 types based on medial pooling ratio and mor phology of the acetabular limbus, Using modified Severin's criteria fo r outcome evaluation, 7 of the 11 hips had been upgraded in type, All hips that were classified as Type I by arthrogram had Severin I result s, The relation of arthrographic type and radiographic results was sta tistically significant, Immediate open reduction is recommended in hip s classified as Type VI at first arthrogram or Type III and above at r epeat arthrogram.