Bernstein Robert M, Rassman William R, Rashid Nazia, Shiell Richard C
College of Physicians and Surgeons, Columbia University, New York, New York, USA.
Dermatol Surg. 2002 Sep;28(9):783-94. doi: 10.1046/j.1524-4725.2002.02030.x.
An increasingly important part of many hair restoration practices is the correction of hair transplants that were performed using older, outdated methods, or the correction of hair transplants that have left disfiguring results. The skill and judgment involved in these repair procedures often exceed those needed to operate on patients who have had no prior surgery. The use of small grafts alone does not protect the patient from poor work. Errors in surgical and aesthetic judgment, performing procedures on noncandidate patients, and the failure to communicate successfully with patients about realistic expectations remain major problems.
This two-part series presents new insights into repair strategies and expands upon several techniques previously described in the hair restoration literature. The focus is on creative aesthetic solutions to solve the supply/demand limitations inherent in most repairs. This article is written to serve as a guide for surgeons who perform repairs in their daily practices.
The repairs are performed by excision with reimplantation and/or by camouflage. Follicular unit transplantation is used for the restorative aspects of the procedure.
Using punch or linear excision techniques allows the surgeon to relocate poorly planted grafts to areas that are more appropriate. In special situations, removal of grafts without reimplantation can be accomplished using lasers or electrolysis. The key elements of camouflage include creating a deep zone of follicular units, angling grafts in their natural direction, and using forward and side weighting of grafts to increase the appearance of fullness. The available donor supply is limited by hair density, scalp laxity, and scar placement.
Presented with significant cosmetic problems and severely limited donor reserves, the surgeon performing restorative hair transplantation work faces distinct challenges. Meticulous surgical techniques and optimal utilization of a limited hair supply will enable the surgeon to achieve the best possible cosmetic results for patients requiring repairs.
在许多毛发移植手术中,一个日益重要的部分是对采用陈旧、过时方法进行的毛发移植进行修复,或者对造成毁容性后果的毛发移植进行修复。这些修复手术所涉及的技能和判断力往往超过对未曾接受过先前手术的患者进行手术所需的技能和判断力。仅使用小毛囊移植并不能使患者免受手术效果不佳的影响。手术和美学判断失误、对不适合手术的患者进行手术以及未能就现实期望与患者进行有效沟通仍然是主要问题。
这个分为两部分的系列文章提出了关于修复策略的新见解,并对毛发移植文献中先前描述的几种技术进行了扩展。重点是提出创造性的美学解决方案,以解决大多数修复手术中固有的供体/需求限制问题。本文旨在为日常进行修复手术的外科医生提供指导。
修复手术通过切除并重新植入和/或通过掩饰来进行。毛囊单位移植用于手术的修复方面。
使用打孔或线性切除技术可使外科医生将种植不当的毛囊移植到更合适的区域。在特殊情况下,可使用激光或电解法在不重新植入的情况下移除毛囊移植。掩饰的关键要素包括创建一个毛囊单位深层区域、使毛囊移植按其自然方向倾斜,以及对毛囊移植进行前后和侧向加权以增加饱满度。可用的供体来源受到头发密度、头皮松弛度和瘢痕位置的限制。
进行修复性毛发移植手术的外科医生面临着明显的挑战,因为患者存在严重的美容问题且供体储备严重受限。精细的手术技术和对有限头发供应的最佳利用将使外科医生能够为需要修复的患者取得尽可能好的美容效果。