正常耳外耳轮到乳突距离的测量与分析  

Measurement of the Distance from Helix to Mastoid Skin in Normal Ears

作　　者：唐新杰[1] 许枫[1] 孙楠[1] 张如鸿[1] 张群[1] 

机构地区：[1]上海交通大学医学院附属第九人民医院整复外科,上海市200011

出　　处：《组织工程与重建外科杂志》2015年第1期26-27,共2页Journal of Tissue Engineering and Reconstructive Surgery

摘　　要：目的为了使再造耳的颅耳角更稳定和更对称,测量正常耳外耳轮到乳突的距离并加以分析。方法选取100个正常耳分别测量耳上、中、下3点到乳突的距离并分析。同时选取5例正常耳进行三维测量。结果正常耳上、中、下3点到乳突的距离分别是(1.41±0.18)cm、(1.98±0.26)cm和(1.66±0.26)cm。通过以上数据分析,外耳轮到乳突的垂直距离的最远点在中间点,与1968年McDowell报道的外耳轮到乳突距离最远点在下1/3不符。三维测量结果与上述结果相符。结论国人外耳轮到乳突的距离,距离最大的点在中间点,应在此基础上定制二期耳支撑材料的形态与高度。Objective To measure the distance from helix to mastoid skin, in order to achieve an acceptable projection of the ear and be symmetrical with the normal contralateral ear if present. Methods The distance from the upper, middle, and lower third of helix to mastoid skin of 100 healthy normal ears were measured. Meanwhile three-dimensional measurement models were made in 5 normal ears. Results The distance from helix to mastoid skin were（1.41±0.18） cm in upper third,（1.98±0.26） cm in mid-portion and（1.66±0.26） cm in lower third. It was interesting that the distance from helix to mastoid skin of mid-dle third was higher than that of upper and lower third in Chinese population, not in accordance with Mc Dowell＇s standard, in which the distance of lower third was higher than that of upper and middle. The software analysis result of the 5 3-dimensional measurement models was in accordance with manually measurements above. Conclusion In normal ears, the distance from the middle third of helix to mastoid skin is higher than that of upper and lower third in Chinese population, the shape and height of support material in the second stage of ear reconstruction should be made based on the above measurements.

关 键 词：耳再造 测量 外耳轮 乳突 

分 类 号：R622[医药卫生—整形外科]