Use of an internal bidirectional distractor to elongate goats鈥?mandibles
- 作者：Xiaozhen Lin ; Libin Zhou ; Hongtao Shang ; Yanpu Liu ; liuyanpu@fmmu.edu.cn ; Bin Bo ; bobin@fmmu.edu.cn
- 关键词：Distraction osteogenesis ; Bidirectional distractor ; Internal distractor ; Mandibular hypoplasia
- 刊名：British Journal of Oral and Maxillofacial Surgery
- 出版年：2012
- 期刊代码：41_02664356
- 类别：med
- 出版时间：June, 2012
- 卷：50
- 期：4
- 页码：e49-e52
- 文件大小：655 K
摘要
We investigated the feasibility of using an internal bidirectional mandibular distractor to elongate the mandibular bodies and rami of 4 mature male goats. An osteotomy was made at the right mandibular angle and the distractor placed within the osteotomy and allowed to heal in place for 5 days. The mandibles were simultaneously distracted vertically and horizontally at a rate of 0.5 mm/day for 30 days. After a 12-week consolidation period, all the goats were killed for gross, radiographic, and histological evaluation. Smooth new bone had been restored in the distracted area after 12 weeks鈥?consolidation, and the gross, radiographic, and histological evaluations showed that the new bone was similar to the native bone. These results suggest that the internal bidirectional distractor could permit bidirectional distraction osteogenesis in a goat model.