Abstract：
BACKGROUND: The linear scar and misalignment of hair follicles are disadvantages of the follicular unit transplantation (FUT) or strip technique. The most common misalignment is at the end of the strip. Although most surgeons try to match hair direction to achieve optimal hair alignment, their attempts are often unsuccessful.
OBJECTIVE: We aimed to assess strip designs to improve hair alignment during hair transplantation.
METHODS: We conducted a retrospective study of 157 patients who underwent hair transplantation with either the commonly used elliptical incision or our novel triangular flag-shaped designed incision on the donor strip tip. Two blind evaluators assessed the outcome of hair alignment using a 5-point visual analog scale.
RESULTS: In total, 303 wounds on 157 patients were assessed. Overall, our triangular flag-shaped design (TFD) achieved better hair alignment than the common elliptical design (CED) (p=0.01). Patients with hair direction straight on the upper wound edge and hair direction inward on the lower wound edge showed improved outcomes with TFD, whereas patients with hair direction inward on both upper and lower wound edges showed better outcomes with CED.
CONCLUSIONS: The TFD tip of donor strips achieved proper hair alignment for most hair transplant patients.
UNASSIGNED: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
OBJECTIVE: We aimed to assess strip designs to improve hair alignment during hair transplantation.
METHODS: We conducted a retrospective study of 157 patients who underwent hair transplantation with either the commonly used elliptical incision or our novel triangular flag-shaped designed incision on the donor strip tip. Two blind evaluators assessed the outcome of hair alignment using a 5-point visual analog scale.
RESULTS: In total, 303 wounds on 157 patients were assessed. Overall, our triangular flag-shaped design (TFD) achieved better hair alignment than the common elliptical design (CED) (p=0.01). Patients with hair direction straight on the upper wound edge and hair direction inward on the lower wound edge showed improved outcomes with TFD, whereas patients with hair direction inward on both upper and lower wound edges showed better outcomes with CED.
CONCLUSIONS: The TFD tip of donor strips achieved proper hair alignment for most hair transplant patients.
UNASSIGNED: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
摘要：
背景：毛囊的线性疤痕和错位是毛囊单位移植（FUT）或剥离技术的缺点。最常见的错位是在条带的末端。虽然大多数外科医生试图匹配头发方向以达到最佳的头发对齐，他们的尝试往往是不成功的。
目的：我们旨在评估试纸设计，以改善毛发移植过程中的毛发排列。
方法：我们对157例接受头发移植的患者进行了回顾性研究，这些患者使用常用的椭圆形切口或我们在供体条尖端设计的新型三角旗形切口进行了头发移植。两名盲人评估人员使用5点视觉模拟量表评估了头发对齐的结果。
结果：总计，对157名患者的303个伤口进行了评估。总的来说,我们的三角旗形设计（TFD）比普通椭圆形设计（CED）实现了更好的头发对齐（p=0.01）。毛发方向在上伤口边缘是直的，毛发方向在下伤口边缘是向内的患者显示TFD改善的结果，而伤口上下边缘毛发向内的患者使用CED显示出更好的结果。
结论：对于大多数毛发移植患者，供体条的TFD尖端实现了正确的毛发排列。
■本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
目的：我们旨在评估试纸设计，以改善毛发移植过程中的毛发排列。
方法：我们对157例接受头发移植的患者进行了回顾性研究，这些患者使用常用的椭圆形切口或我们在供体条尖端设计的新型三角旗形切口进行了头发移植。两名盲人评估人员使用5点视觉模拟量表评估了头发对齐的结果。
结果：总计，对157名患者的303个伤口进行了评估。总的来说,我们的三角旗形设计（TFD）比普通椭圆形设计（CED）实现了更好的头发对齐（p=0.01）。毛发方向在上伤口边缘是直的，毛发方向在下伤口边缘是向内的患者显示TFD改善的结果，而伤口上下边缘毛发向内的患者使用CED显示出更好的结果。
结论：对于大多数毛发移植患者，供体条的TFD尖端实现了正确的毛发排列。
■本期刊要求作者为每篇文章分配一定程度的证据。对于这些循证医学评级的完整描述，请参阅目录或在线作者说明www。springer.com/00266.
