Au Y K, Mahjoub S B, Hart J C
Department of Ophthalmology, Louisiana State University Medical Center, Shreveport 71130.
Ophthalmic Surg. 1990 Jul;21(7):472-4.
Torque and antitorque running sutures as described by Eisner are commonly used in penetrating keratoplasty. We tested the rotational effect of three different 16-bite running suture patterns on eight cadaver eyes, with the following results: (1) the torque pattern rotates the corneal graft counterclockwise by 0.7 +/- 0.1 mm at the wound or 11 degrees; (2) the antitorque pattern rotates the corneal graft clockwise by 0.7 +/- 0.1 mm at the wound or 11 degrees; (3) an intermediate "no torque" pattern, the bites of which form an isosceles triangle, produces no rotational effect. We recommend the use of a "no torque" pattern to minimize corneal graft rotation.
艾斯纳所描述的扭矩和抗扭矩连续缝合线常用于穿透性角膜移植术。我们在八只尸体眼睛上测试了三种不同的16针连续缝合线模式的旋转效果，结果如下：（1）扭矩模式使角膜移植片在伤口处逆时针旋转0.7±0.1毫米或11度；（2）抗扭矩模式使角膜移植片在伤口处顺时针旋转0.7±0.1毫米或11度；（3）一种中间的“无扭矩”模式，其针脚形成一个等腰三角形，不会产生旋转效果。我们建议使用“无扭矩”模式以尽量减少角膜移植片的旋转。
