Displacement of the Mandible in a Child With Congenital Unilateral Temporomandibular Joint Ankylosis Treated With Two-Stage Condylar Replacement: A Long-Term Study With the Aid of Roentgen Stereometric Analysis

Abstract

Abstract Objective: To monitor mandibular displacement in three dimensions with a high degree of accuracy before, during, and after treatment. Design: Prospective roentgen stereometric analysis from age 3 years 7 months to age 13 years 8 months. Setting: Center for Craniofacial Anomalies and Department of Maxillofacial Surgery, Malmo University Hospital, Malmo, Sweden. Patient: Girl with unilateral congenital temporomandibular joint (TMJ) ankylosis and marked facial asymmetry. Interventions: Epipharyngeal inspection at age 2 years 6 months and insertion of implants under general anesthesia. Resection of the affected right condyle at age 5 years 4 months, replacement of the ramus-condyle complex with a custom made titanium prosthesis at age 5 years 5 months, and replacement of the artificial condyle by a costochondral graft at age 9 years 7 months. Roentgen examinations were performed at intervals from age 3 years 7 months to age 13 years 8 months. Body length was measured annually. Main Outcome Measures: ...