Brandy D A
Department of Dermatology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA.
Dermatol Surg. 1996 Feb;22(2):137-47. doi: 10.1111/j.1524-4725.1996.tb00495.x.
Circumferential scalp reduction combined with a suture-in-place Silastic-Dacron extender is described as a viable alternative for those surgeons wishing not to perform extensive scalp-lifting. The primary advantage of the Silastic-Dacron extender is that it allows the time interval between surgeries to be shortened to 1 month.
To incur the benefits of circumferential scalp reduction (minimal stretch-back and decreased slot formation) and the decreased time between sessions offered by a suture-in-place Silastic-Dacron extender.
A circumferential scalp reduction is first performed and a tunnel is made under the central bald peninsula. Once this is completed, a 4-cm-wide Silastic-Dacron strip is passed through the tunnel and is sutured to both lateral edges of the galea under tension. The way to determine the proper length of the strip is described.
The combination of circumferential scalp reduction with a suture-in-place Silastic-Dacron extender gives results that are comparable to scalp-lifting; however, more procedures are required and not as much upward movement into the crown is accomplished. The memory of the Silastic-Dacron extender has been found to eliminate stretch-back and quickly improve scalp laxity.
Circumferential scalp reduction combined with a suture-in-place Silastic-Dacron extender is an extremely viable method to treat patients with extensive baldness. The decrease in slot formation and minimal stretch-back afforded by circumferential scalp reduction and the shortened 1-month time interval between surgeries brought about by the Silastic-Dacron extender make this a procedure that hair replacement surgeons should have in their armamentarium.
对于那些不想进行广泛头皮提升术的外科医生来说,环形头皮缩减术结合原位缝合的硅橡胶-涤纶延长器被认为是一种可行的替代方法。硅橡胶-涤纶延长器的主要优点是它能将手术间隔时间缩短至1个月。
获得环形头皮缩减术(最小的回缩和减少缝隙形成)的益处,以及原位缝合的硅橡胶-涤纶延长器所提供的缩短手术间隔时间的效果。
首先进行环形头皮缩减术,并在中央秃发半岛下方制作一条隧道。完成后,将一条4厘米宽的硅橡胶-涤纶条带穿过隧道,并在张力下缝合到帽状腱膜的两侧边缘。文中描述了确定条带合适长度的方法。
环形头皮缩减术与原位缝合的硅橡胶-涤纶延长器相结合的效果与头皮提升术相当;然而,需要更多的手术步骤,并且向头顶的上移效果不如头皮提升术。已发现硅橡胶-涤纶延长器的弹性可消除回缩并迅速改善头皮松弛度。
环形头皮缩减术结合原位缝合的硅橡胶-涤纶延长器是治疗大面积秃发患者的一种极为可行的方法。环形头皮缩减术减少缝隙形成和最小化回缩,以及硅橡胶-涤纶延长器使手术间隔时间缩短至1个月,使得这一手术成为毛发移植外科医生应掌握的技术。