鼻外侧软骨的临床解剖学研究

The Research of Clinical Anatomy in the Lateral Nasal Cartilage (LNC)

目的 :通过对 15具尸体标本 (3 0侧 )的鼻部解剖 ,获得正常的鼻外侧软骨的测量数据 ,并探讨鼻外侧软骨的形态结构及其与鼻骨之间的关系。方法 :15具中国成年尸体 ,去除鼻骨、鼻外侧软骨及鼻翼软骨的所有软组织。在鼻骨与软骨重叠部分取 4个点 ,将重叠部分分成 3等分 ,测量各点上垂直线上与鼻骨的重叠距离。测量鼻外侧软骨的长度及宽度。结果 :鼻外侧软骨的平均长度为 (19.84± 1.5 1)mm ,平均宽度为 (9.80± 1.5 0 )mm。鼻外侧软骨在鼻骨下从鼻骨中线 (即鼻额缝 )向侧面所重叠的平均长度为(10 .5 6± 2 .2 2 )mm。鼻外侧软骨与鼻骨的重叠情况 :在中线处与鼻中隔的重叠度最大 ,其值为 (5 .65± 1.5 0 )mm ;在鼻骨外侧处的重叠度最小 ,其值为 (1.60± 0 .5 8)mm。结论 :掌握鼻骨、鼻外侧软骨重叠的程度为鼻部美容整形、功能性或外伤后鼻部修复的功能复位提供解剖学可能的变化范围。了解正常鼻外侧软骨的测量数据可以作为医生手术的指南。

Objective:The purpose of this investigation was to obtain the data about the cartilaginous measurements and ascertain the macroscopic details at rhinion and throughout the cartilaginous nasal pyramid in 15 Chinese cadavers (30 sides).Methods: Demographic information on 15 Chinese cadavers was collected. All soft tissues were removed from the nasal bones, lateral nasal cartilages, and alar cartilages and the overlap between bone and cartilage was measured at 4 sites. The lateral nasal cartilage (LNC) was measured for width and length. Results: The LNC was( 19.84 ±1.51)mm long and(9.80±1.50)mm wide on average. It underlapped the nasal bone(10.56±2.22 mm on average) from the nasal septum laterally. The area of cephalocaudal underlapping was the greatest in the midline [mean(5.65±1.50)mm] and the least[mean(1.60±0.58)mm] about halfway down the nasal bone. The septum and LNC is completely in fusion.Conclusion: In aesthetic, functional, or post traumatic nasal surgeries, one must be aware of dealing with diverse attachments between the septum and the LNC.