The Journal of craniofacial surgery · 2017
Application of Bidirectional Distraction Osteogenesis for the Treatment of Mandibular Micriognathia Caused by Temporomandibular Joint Ankylosis.
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Zhang Chi, Li Yunfeng, Ye Bin, Liu Yao, Bao Chongyun, Zhu Songsong
Аннотация
BACKGROUND: Temporomandibular joint (TMJ) ankylosis is a joint disorder that refers to bone or fibrous adhesion of the anatomic joint components and the ensuing loss of function. When it happens on children, it is always accompanied by dentofacial deformities. The objective of this study was to describe the authors' experience of bidirectional distraction osteogenesis for the treatment of mandibular deformities caused by TMJ ankylosis.
METHODS: Sixteen patients with TMJ ankylosis and severe secondary mandibular deformities were treated with bidirectional distraction osteogenesis and release of joint from January 2013 to December 2015. Clinical outcomes were assessed based on the oral function, radiography, and medical photography.
RESULTS: No reankylosis was found during the follow-up period. Sufficient volume and density new bone had been formed after the consolidation period. All patients have maintained stable improvement in oral function during the follow-up period. Most of the patients achieved satisfactory outcomes.
CONCLUSIONS: Bidirectional transport distraction osteogenesis technique is a good and effective therapeutic option in treatment of bilateral or unilateral TMJ ankylosis patients associated with mandibular micrognathia.
METHODS: Sixteen patients with TMJ ankylosis and severe secondary mandibular deformities were treated with bidirectional distraction osteogenesis and release of joint from January 2013 to December 2015. Clinical outcomes were assessed based on the oral function, radiography, and medical photography.
RESULTS: No reankylosis was found during the follow-up period. Sufficient volume and density new bone had been formed after the consolidation period. All patients have maintained stable improvement in oral function during the follow-up period. Most of the patients achieved satisfactory outcomes.
CONCLUSIONS: Bidirectional transport distraction osteogenesis technique is a good and effective therapeutic option in treatment of bilateral or unilateral TMJ ankylosis patients associated with mandibular micrognathia.