摘要
目的应用计算机导航技术辅助矫治单侧陈旧性颧骨骨折，并与三维头模及定位导板技术对比，评价导航技术疗效。方法2009年6月至2011年8月在北京大学口腔医学院·口腔医院口腔颌面外科接受治疗的单侧陈旧性颧骨骨折23例，按辅助治疗技术不同分两组，A组：11例应用计算机导航技术；B组：12例应用三维头模及定位导板技术。在颧弓轴位CT层面测量两组术后颧骨突度、颧弓宽度。结果术后双侧颧骨突度差值比较，A组（0．94±0．73）mm，B组（1．88±1．82）mm，两组间差异无统计学意义（P〉0．05）；术后双侧颧弓宽度差值比较，A组（0．77±0．51）mm，B组（3．00±1．81）mm，两组间差异有统计学意义（P〈0．05）。A组术后颧骨突度过矫正6例（6／11），欠矫正5例（5／11）；颧弓宽度过矫正6例（6／11），欠矫正5例（5／11）。B组术后颧骨突度过矫正7例（7／12），欠矫正5例（5／12）；颧弓宽度过矫正12例（12／12），欠矫正0例（0／12）。结论计算机导航矫治单侧陈旧性颧骨骨折能较好恢复颧骨突度及颧弓宽度；三维头模及定位导板矫治单侧陈旧性颧骨骨折能较好恢复颧骨突度，但其有使颧弓复位增宽的趋势。
Objective To compare the efficacy of computer-navigated surgery and the 3-D skull models and guide plates for the treatment of unilateral delayed zygomatic fractures. Methods Eleven patients with unilateral delayed zygomatic fractures were treated by computer-navigated surgery （test group） and another 12 patients were treated by 3-D skull models and guide plates as the control group. Quality of reduction was assessed by examination of postoperative axial CT scans through zygomatic arch, the malar prominence and the width of zygomatic arch were measured in both groups. Results The difference between bilateral malar prominence was（0. 94 ± 0. 73 ）mm in the test group and （ 1.88 ± 1.82） mm in the control group, there was no significant difference between the two groups （ P 〉 0. 05 ） . The difference between bilateral width of zygomatic arch was （0. 77 ± 0. 51 ）mm in the test group, less than （ 3.00 ± 1.81 ） mm in the control group （ P 〈 0. 05 ）. Excessive malar prominence was observed in 6 cases （6/11 ） in the test group and in 7 cases（7/12）in the control group, whereas malar depression was observed in 5 cases （5/11）in the test group and in 5 cases （ 5/12 ） in the control group. Overcorrection of the width of zygomatic arch was observed in 6 cases（6/ll ） in the test group and in 12 cases （12/12）in the control group, whereas under correction was observed in 5 cases （5/11）in the test group and in 0 cases （0/12）in the control group. Conclusions In the treatment of unilateral delayed zygomatic fractures, symmetry of malar prominence can be achieved by application of computer-navigated surgery or the 3-D skull models and guide plates. Symmetry of the width of zygomatic arch achieved with the computer-navigated surgery is better than that achieved with 3-D skull models and guide plates.
出处
《中华口腔医学杂志》
CAS
CSCD
北大核心
2012年第7期414-418,共5页
Chinese Journal of Stomatology
基金
“十一五”863计划重点项目（2009AA045201）
关键词
颧骨骨折
模型
解剖学
计算机辅助导航
Zygomatic fractures
Models,anatomic
Computer assisted navigation
