Maxillary and mandibular displacement in hemifacial microsomia: a longitudinal Roentgen stereometric study of 21 patients with the aid of metallic implants.

Objective: To record maxillary and mandibular displacement with articular growth and in response to bimaxillary surgical repositioning in patients with hemifacial microsomia (HFM) and to observe ipsilateral corpus/ramus growth in severely affected children.

Design: Prospective roentgen stereometric analysis (mean age 7 years 10 months to 18 years 0 months) and retrospective profile and panoramic roentgenograms. Mean total observation period was 9 years 1 month.