BACKGROUND: @entity2530 after treatment for @entity572 can result in @entity85 and long-term morbidity. This study aims to analyze the clinical and radiographic factors that are associated with femoral @entity85 in the early stage of @entity2530 . METHODS: Thirty @entity1 with @entity572 treated by the same operation before 3 years of age and who developed early signs of @entity2530 , were studied. @entity2530 was diagnosed by either broadening of the femoral neck, @entity1949 of the capital epiphysis, or the presence of a metaphyseal growth disturbance line in the first postoperative year. After 10-year follow-up, the hips were classified into spherical head or deformed head by irregularity <2 mm or more to analyze the associated factors. RESULTS: Sixteen hips had spherical femoral heads and the other 14 hips had deformed femoral heads. Age, sex, side, Tonnis classification, and preoperative or postoperative acetabular index were not associated with the outcome after @entity2530 . Among the early signs of @entity2530 , @entity1949 of the capital epiphysis was significantly associated with later @entity85 . Fragmentation was a sign with high sensitivity (79%) and high specificity (88%) in predicting a deformed head. @entity2249 had a high sensitivity (93%), but a low specificity (38%) in outcome prediction. CONCLUSIONS: Fragmentation and flattening of the femoral epiphysis are the worst radiographic signs indicating subsequent growth disturbance and deformity of the proximal femur. Broadening of the femoral neck exhibited high sensitivity in predicting @entity85 , and physicians should be alerted to subsequent @entity1949 . A metaphyseal growth disturbance line is a sign of @entity2530 , but the predictive value is limited. LEVEL OF EVIDENCE: Diagnostic level 3.

Predictive value for femoral head sphericity from early radiographic signs in surgery for XXXX .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity1949 :: ('MESH:D012892', 'Disease') :: ['fragmentation', 'epiphyseal fragmentation'] @entity2249 :: ('MESH:D005265', 'Disease') :: ['Broadening of femoral neck'] @entity572 :: ('MESH:D006617', 'Disease') :: ['unilateral developmental dysplasia of the hip', 'late developmental dysplasia of the hip'] @entity85 :: ('MESH:D009140', 'Disease') :: ['head deformity', 'later deformity', 'deformity of the femoral head'] @entity2530 :: ('MESH:D010020', 'Disease') :: ['avascular necrosis', 'Avascular necrosis']
@entity572 :: (MESH:D006617,Disease) :: ['developmental dysplasia of the hip']
