Diks Jeroen, Nio Denise, Linsen Matteus A, Rauwerda Jan A, Wisselink Willem
Department of Surgery, Vrije Universiteit Medical Center, Amsterdam, The Netherlands.
Surg Laparosc Endosc Percutan Tech. 2007 Dec;17(6):524-7. doi: 10.1097/SLE.0b013e318150e590.
Manipulation of sutures during endoscopic surgery could lead to damage of suture structure, supposedly resulting in loss of strength. Lack of tactile feedback in robotic surgical systems might increase this problem. The objective of this study is to evaluate suture strength after robotic manipulation and to determine which suture material is least susceptible to damage from robotic manipulation.
The da Vinci surgical system was used to manipulate sutures. Three different suture materials (Prolene, ePTFE, Ethibond) of 3 different sizes (3-0, 4-0, and 5-0) were tested. A total of 270 sutures were pulled on a Servohydraulic Universal Testing Machine. The frequency of breaks at a manipulation-point and the maximum applied force (N) before the suture broke were used for statistic analysis.
No loss in strength was shown in the ePTFE sutures after manipulation, whereas both Prolene and Ethibond sutures showed a significant loss of strength.
ePTFE sutures are least susceptible to robotic manipulations and are, therefore, to be considered as a material of first choice.
内镜手术中对缝线的操作可能导致缝线结构受损，推测会导致强度丧失。机器人手术系统中缺乏触觉反馈可能会加剧这一问题。本研究的目的是评估机器人操作后缝线的强度，并确定哪种缝线材料最不易受到机器人操作的损伤。
使用达芬奇手术系统操作缝线。测试了三种不同尺寸（3-0、4-0和5-0）的三种不同缝线材料（普理灵、ePTFE、Ethibond）。总共270根缝线在伺服液压万能试验机上进行拉伸。在操作点处的断裂频率以及缝线断裂前施加的最大力（N）用于统计分析。
操作后ePTFE缝线未显示强度损失，而普理灵和Ethibond缝线均显示出明显的强度损失。
ePTFE缝线最不易受到机器人操作的影响，因此应被视为首选材料。
