下颌副孔的分布及其临床意义  

Distribution of accessory foramina of mandible and its clinical significance

作　　者：姚波[1] 杨丽[2] 王效杰[3] 李宏革[4] 

机构地区：[1]沈阳市第四人民医院口腔科,辽宁沈阳110031 [2]沈阳医学院附属卫生学校,辽宁沈阳110034 [3]沈阳医学院解剖学教研室 [4]沈阳医学院预防医学系统计学教研室

出　　处：《西部医学》2007年第1期18-20,共3页Medical Journal of West China

摘　　要：目的研究下颌副孔的位置,探讨肿瘤细胞向下颌骨的播散途径。方法对82例下颌骨内、外侧面下颌副孔进行研究并统计分析。结果各标本之间下颌副孔数差异很大。内侧面:冠区出现率为57.32%,切迹区出现率为71.95%,髁区出现率为57.32%。上、中、下区出现率分别为73.17%,73.17%和98.78%。外侧面:冠区出现率为23.17%、切迹区出现率为32.93%,髁区出现率为37.80%;上、中、下区出现率分别为62.20%,62.20%和53.66%。结论下颌副孔为口腔内和面部肿瘤播散到下颌骨的途径之一,未经放疗的病例应切除磨牙后区和冠状突而保留下颌骨的其余部分。Objective To study the location of the accessory foramina of the mandible and assess the possible route of spread of the tumour cell to the mandible. Methods Distribution of the accessory foramina of 82 mandibles on the medial and lateral surfaces was studied and statistically analyzed. Results It was found that the number of accessory foramina variedgreatly from specimen to specimen. On the medial surface ; 57. 32% of mandibles showed foramen in the eoronoid area, 71, 95% in the incisure, and 57.32% in the condylar area. 73.17% foramina were present in upper 1/3 area, 73. 17% in the middle 1/3 and 98.78% in the lower 1/3 area of the mandible. On the lateral surface, 23.17% in the coronoid, 52.98% in the incisure, 37.80% in the condylar area. The foramen in the upper 1/3 section was 62.20%, 62.20% in the middle 1/3 and 53.66% in the lower 1/3. Conclusion The foramen could provide an efficient route for tumour cells in the oral or the maxillofacial spread to the mandible. This finding also supports that retromolar area and cornoid process should be removed and the rest of the ascending ramus remains intact for nonradiated cases.

关 键 词：下颌骨 副孔 内侧面 外侧面 

分 类 号：R322.41[医药卫生—人体解剖和组织胚胎学] R739.82[医药卫生—基础医学]