Journal of Textile Research ›› 2020, Vol. 41 ›› Issue (11): 66-72.doi: 10.13475/j.fzxb.20191100307

• Textile Engineering • Previous Articles     Next Articles

Structures and mechanical properties of typical textile-based artificial ligaments and explants

LIU Mingjie1,2, LIN Jing1,2, GUAN Guoping1,2(), BROCHU G3, GUIDION R3, WANG Lu1,2   

  1. 1. College of Textiles, Donghua University, Shanghai 201620, China
    2. Key Laboratory of Textiles Scienceand Technology, Ministry of Education, Donghua University, Shanghai 201620, China
    3. Department of Surgery, Laval University, Quebec G1V0A6, Canada
  • Received:2019-11-01 Revised:2020-05-15 Online:2020-11-15 Published:2020-11-26
  • Contact: GUAN Guoping E-mail:ggp@dhu.edu.cn

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Abstract:

In view of large clinical demand for artificial ligament (AL) products and high elimination rate, the present work reports on research where eleven AL products were investigated comprehensively on their geometric features, textures, and surface morphology. In addition, failure mechanisms of a typical product Stryker?-Meadox were explored in terms of mechanical property, fiber morphology and biodegradation through analysis of explants and virgin samples. The results show that the existing AL products have various structures and different shapes, which is related to their clinical indications, and that the surface abrasion of the samples and internal structural changes of the polymers might be the leading causes of the failure after long-term implantation. The findings of this work provide some insights into optimizing the existing AL products.

Key words: medical textile, artificial ligament, anterior cruciate ligament, explant, failure mechanisms

CLC Number: 

  • TS101.4

Tab.1

Geometric characteristics and structures of 11 artificial ligaments"

试样
编号		 宽度/
cm		 厚度/
mm		 织造
方式		 特殊
结构
1# 0.61 0.59 经编 芯壳结构,
芯纱为单丝
2# 0.66 0.87 经编 两端接有末端开有
小孔的塑料管
3# 0.57 0.50 经编 两端接有辅助细线,
细线末尾连接金属丝环
4# 1.77 0.77 机织 一端由细线悬吊,
另一端开有圆孔
5# 4.21 0.40 机织 织带结构
6# 0.44 4.58 经编
机织		 经编外壳,
多条机织内芯
7# 0.98 0.76 编织 两端为胶封
8# 0.46 0.47 编织 16股编织结构,
每股中4根编织股纱
9# 0.85 0.56 编织 4股编织结构,
每股中11根编织股纱
10# 1.07 0.67 编织 编织管状结构
11# 0.38 1.60 编织 编织管状结构

Tab.2

Fabric density test results of 1#~3#"

试样编号 密度/(线圈·(5 cm)-1)
横密 纵密
1# 24.8 30.2
2# 45.6 105.3
3# 26.2 91.4

Tab.3

Fabric density test results of 4#~6#"

试样编号 经纬密/(根数·(10 cm)-1)
经密 纬密
4# 39.02 50.24
5# 38.68 51.26
6# 222.87 144.70

Tab.4

Fabric braid density test results of 7#~11#"

试样编号 编织角/(°) 编织节点数/(个·cm-1)
7# 42.34 4.12
8# 34.15 14.16
9# 49.32 0.84
10# 24.68 4.40
11# 37.16 6.67

Fig.1

Textile structure images of 11 textile-based artificial ligaments. (a) Digital camera images; (b) Stereomicroscope images"

Fig.2

Stereomicroscopic images of two samples(×20). (a) Virgin outer shell outside; (b) Virgin outer shell inside;(c) Virgin inner core; (d) Explant outer shell outside;(e) Explant outer shell inside; (f) Explant inner core"

Fig.3

SEM images of two samples(×50). (a) Virgin inner core; (b) Explant inner core;(c) Virgin outer shell inside; (d) Explant outer shell inside;(e) Virgin outer shell outside; (f) Explant outer shell outside"

Fig.4

FT-IR (a) and TGA (b) pattern of monofilament and multifilament used in 6#"

Fig.5

XRD patterns of virgin and explant. (a) Inner core; (b) Outer shell"

Fig.6

Typical strain and stress curves of warp and weft yarns of virgin and explant inner core. (a) Warp yarn; (b) Weft yarn"

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