[不同聚丙烯网片在乳房下垂矫正中的生物力学研究]
[Biomechanical research of different polypropylene meshes in breast ptosis correction].
作者信息
Wang Zhi, Zeng Yan-jun, Zhang Hai-lin, Sun Bao-dong, Qiao Qun
机构信息
Plastic and Aesthetic Surgery Center, Beijing Union Hospital, Chinese Academy of Medical Sciences , Beijing 100032, China.
出版信息
Zhonghua Zheng Xing Wai Ke Za Zhi. 2009 Nov;25(6):440-3.
OBJECTIVE
To investigate the biomechanical properties of different polypropylene meshes, so as to select the proper mesh for breast ptosis correction as inner bra.
METHODS
Mini-pigs were used as animal model. Four different polypropylene meshes were implanted subcutaneously at abdomen. 90 d later, the specimens were taken out for biomechanical study.
RESULTS
The tensile strength, stress, relaxation and creep of the four meshes were different. The material and the knitting of the four meshes were different.
CONCLUSIONS
The biomechanical properties of relaxation and creep are important in maintaining the postoperative breast figure. Premilene Mesh LP is a new and light polypropylene mesh with mini-pores. Its biomechanical properties are superior to the others.
目的
研究不同聚丙烯网片的生物力学性能，以便选择合适的网片作为乳房下垂矫正的内置胸罩。
方法
以小型猪作为动物模型。将四种不同的聚丙烯网片皮下植入腹部。90天后，取出标本进行生物力学研究。
结果
四种网片的拉伸强度、应力、松弛和蠕变不同。四种网片的材质和编织方式不同。
结论
松弛和蠕变的生物力学性能对维持术后乳房形态很重要。Premilene Mesh LP是一种新型轻质微孔聚丙烯网片。其生物力学性能优于其他网片。
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