Post-operative radiograph assessment of children undergoing closed reduction and spica cast immobilization for developmental dysplasia of the hip: does experience matter?

Our results show poor concordance between observers and ratings. Post-operative radiographs are unreliable for assessing the quality of hip reduction. The level of experience, subspecialty, and geographical origin do not impact the radiographic assessment. Based on the present findings, we recommend performing post-operative magnetic resonance imaging rather than anteroposterior pelvis radiograph to assess the hip. Compared to standard radiographs, magnetic resonance imaging allows more reliable interpretation while decreasing radiation exposure.