Rao Krishna, Kumar Sudhir, Kumar Vijay, Singh Arun Kumar, Bhatnagar Sudhir Kumar
Post Graduate Department of Plastic and Reconstructive Surgery, King George's Medical College, Lucknow, India.
J Craniomaxillofac Surg. 2004 Feb;32(1):38-42. doi: 10.1016/j.jcms.2003.07.003.
Temporo-mandibular joint ankylosis is a common cause of acquired deformity in children.
Surgical correction of the ankylosis only leaves the patient with an uncorrected mandibular deformity. This study was to evaluate the use of distraction osteogenesis for simultaneous correction of the mandibular deformity.
This study was done on six children with temporo-mandibular joint ankylosis and mandibular deformity. Uniaxial double pin distractors with Schanz pins were used in this study.
The patients underwent simultaneous gap arthroplasty and mandibular osteotomy (retromolar) with distractor insertion. Distraction was started on the fifth post-operative day. The patients were put on dynamic temporo-mandibular joint exercises on the first post-operative day.
All patients had a satisfactory mouth opening on follow-up. Satisfactory cosmetic correction of the mandibular deformity was also achieved in all these patients. Some degree of malocclusion resulted from treatment due to which the patients were placed on orthodontic treatment.
Distraction osteogenesis can be used simultaneously with gap arthroplasty in patients with temporo-mandibular ankylosis, for the correction of the mandibular deformity.
颞下颌关节强直是儿童后天畸形的常见原因。
手术矫正关节强直仅使患者留下未矫正的下颌畸形。本研究旨在评估牵张成骨术同时矫正下颌畸形的应用。
本研究对6例患有颞下颌关节强直和下颌畸形的儿童进行。本研究使用带斯氏针的单轴双钉牵张器。
患者同时接受间隙关节成形术和下颌骨截骨术（磨牙后区）并插入牵张器。术后第5天开始牵张。术后第1天开始让患者进行动态颞下颌关节锻炼。
所有患者随访时张口度均满意。所有这些患者的下颌畸形在美容方面也得到了满意的矫正。治疗导致了一定程度的错牙合，因此患者接受了正畸治疗。
牵张成骨术可与间隙关节成形术同时用于颞下颌关节强直患者，以矫正下颌畸形。
