Intraoperative Contrast-Enhanced Ultrasound Evaluation of Blood Flow at the Time of Surgical Hip Reduction for DDH

Exclusion Criteria

• •\> 24 months of age at the time of surgery.
• •Subjects with DDH who are successfully treated with conservative measures and do not require surgical reduction.
• •Previous open hip reduction of the affected side
• •Children with known complex congenital heart disease or unstable cardiopulmonary conditions (as noted in the package labeling for Lumason) including acute myocardial infarction, acute coronary artery syndromes, worsening or unstable congestive heart failure or serious ventricular arrhythmias will be excluded.
• •History of allergic reaction to Lumason, sulfur hexafluoride, sulfur hexafluoride lipid microsphere components, or other ingredients in Lumason (polyethylene glycol, distearoylphosphatidylcholine (DSPC), dipalmitoylphosphatidylglycerol sodium (DPPG-Ns), palmitic acid).Parental/guardian permission (informed consent) and if appropriate, child assent.