Dallas and Wichita Falls, Texas; and Lyon, France From the University of Texas Southwestern Medical Center; private practice; and the University of Lyon.
Plast Reconstr Surg. 2012 Oct;130(4):926-932. doi: 10.1097/PRS.0b013e318262f3a9.
The columellar strut cartilage graft has historically been assumed to be a technique that increases tip projection. The purpose of this study was to retrospectively analyze a series of 100 consecutive rhinoplasty cases by the senior author (R.J.R.) with a specific focus directed toward the effect of the columellar strut on final tip position, namely, tip projection and tip rotation.
Medical information and digital images were obtained from 100 consecutive primary rhinoplasty patients. All postoperative images were obtained from 1-year or greater follow-up visits. Preoperative and postoperative digital images were compared using a software application that quantitatively analyzed various facial anatomical features, including the nasofrontal angle, the nasolabial angle, tip projection, and tip translation.
Tip projection (defined as the tip position on the x axis) actually decreased in 65 percent, increased in 27 percent, and was unchanged in 8 percent of subjects. Tip translation (defined as the tip position on the y axis) was decreased in 59 percent, increased in 34 percent, and unchanged in 7 percent. The nasofrontal angle was increased in 67 percent, decreased in 23 percent, and unchanged in 10 percent of patients. The nasolabial angle was increased in 46 percent, decreased in 34 percent, and unchanged in 20 percent.
Use of the columellar strut cartilage graft does not necessarily imply an increase in tip projection, but rather serves as a means of unifying the nasal tip and helping to control final tip position.
鼻中隔支撑软骨移植术历来被认为是一种增加鼻尖突出度的技术。本研究的目的是通过资深作者（R.J.R.）回顾性分析 100 例连续的鼻整形术病例，重点分析鼻中隔支撑软骨对鼻尖最终位置的影响，即鼻尖突出度和鼻尖旋转度。
从 100 例连续的原发性鼻整形术患者中获取了医疗信息和数字图像。所有术后图像均来自 1 年或更长时间的随访。使用软件应用程序对术前和术后的数字图像进行比较，该软件应用程序定量分析了各种面部解剖特征，包括鼻额角、鼻唇角、鼻尖突出度和鼻尖移动度。
鼻尖突出度（定义为 x 轴上的鼻尖位置）实际上在 65%的患者中减少，在 27%的患者中增加，在 8%的患者中不变。鼻尖移动度（定义为 y 轴上的鼻尖位置）在 59%的患者中减少，在 34%的患者中增加，在 7%的患者中不变。鼻额角在 67%的患者中增加，在 23%的患者中减少，在 10%的患者中不变。鼻唇角在 46%的患者中增加，在 34%的患者中减少，在 20%的患者中不变。
使用鼻中隔支撑软骨移植术并不一定意味着鼻尖突出度增加，而是作为一种统一鼻尖的手段，并有助于控制鼻尖的最终位置。
