中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (16): 2565-2569.doi: 10.3969/j.issn.2095-4344.2017.16.018

• 肌肉肌腱韧带组织构建 tissue construction of the muscle, tendon and ligament • 上一篇    下一篇

LARS人工韧带重建前交叉韧带:生物相容性及与骨组织的愈合

翟昕元1,林小风2   

  1. 1三峡大学体育学院,湖北省宜昌市  443002;2长江大学医学院,湖北省荆州市  434023
  • 修回日期:2017-01-21 出版日期:2017-06-08 发布日期:2017-07-06
  • 作者简介:翟昕元,女,1976年生,新疆维吾尔自治区阿克苏市人,汉族,2001年成都体育学院毕业,硕士,讲师,主要从事运动损伤与康复方面的研究。
  • 基金资助:

    湖北省自然科学基金面上项目(2015AFC331)

Reconstruction of the anterior cruciate ligament using Ligament Advanced Reinforcement System: its biocompatibility and bone healing

Zhai Xin-yuan1, Lin Xiao-feng2   

  1. 1Institute of Physical Education of China Three Gorges University, Yichang 443002, Hubei Province, China; 2Medical School of Yangtze University, Jingzhou 434023, Hubei Province, China
  • Revised:2017-01-21 Online:2017-06-08 Published:2017-07-06
  • About author:Zhai Xin-yuan, Master, Lecturer, Institute of Physical Education of China Three Gorges University, Yichang 443002, Hubei Province, China
  • Supported by:

    the General Project of Natural Science Foundation of Hubei Province, No. 2015AFC331

摘要:

文章快速阅读:

文题释义:
LARS人工韧带:
是近年来使用较多的交叉韧带,该韧带最早于20世纪90年代出现,以聚对苯二甲酸乙二醇酯为原始材料,该材料设计时为平行纤维排列,能避免传统韧带等引起的纤维间摩擦,能为自体组织的生长提供更多的空间。
重建前交叉韧带损伤的移植物:早期临床上采用的前交叉韧带移植物有自体髌腱、自体腘绳肌腱等。自体骨虽然能满足手术需要,但长期疗效欠佳,并发症发生率较高。同种异体肌腱受到取材的影响,容易引起异物免疫排斥反应,增加感染传染性疾病风险。

 

摘要
背景:
LARS人工韧带能避免传统韧带引起的纤维间摩擦,为自体组织生长提供更多的空间。
目的:探讨LARS人工韧带重建交叉韧带的生物相容性及与骨组织的愈合情况。
方法:将20只山羊随机分为2组,保留残端组仅切断前交叉韧带股骨止点;切除残端组切除前交叉韧带的股骨、胫骨止点,以及上、下止点间的全部韧带组织与表面滑膜组织,两组均植入LARS人工韧带。植入后20个月,影像学观察韧带修复情况,扫描电镜观察纤维组织情况,组织学观察新生韧带生长情况。 

结果与结论:①影像学检查:CT检查显示,保留残端组股骨隧道扩大数显著高于切除残端组(P < 0.05),胫骨隧道扩大数显著低于切除残端组(P < 0.05);磁共振检查显示,LARS人工韧带位于股骨及胫骨隧道内和关节游离部分,在磁共振成像下T1、T2加权均为低信号,两组磁共振信号强度相同;②扫描电镜观察:两组均在LARS人工韧带之间存在明显的致密纤维组织,LARS人工韧带表面覆盖较多自体组织,高放大倍率下可见LARS人工韧带的自体纤维组织排列紧密、均匀;③组织学观察:苏木精-伊红染色显示,两组人工韧带在关节腔内游离部分和骨隧道内被大量自体组织包绕,呈长梭形排列,自体纤维组织整体与人工韧带包绕良好,呈无序排列,骨隧道部分与关节腔内游离部分存在成熟纤维组织,少量毛细血管浸润生长,未见坏死组织。Masson染色显示,两组LARS人工韧带骨隧道内部分和游离部分可见蓝色胶原包绕在人工韧带外部和内部,红染骨组织位于包裹胶原外部,未见明显过渡带;④结果表明:LARS人工韧带具备良好的生物相容性和纤维组织诱导能力,可促进骨组织愈合。

 

 

ORCID: 0000-0001-8999-4141(翟昕元)

关键词: 组织构建, 组织工程, LARS人工韧带, 重建交叉韧带, 生物相容性, 骨组织, 苏木精-伊红染色, Masson染色, 扫描电镜, 诱导能力, 湖北省自然科学基金

Abstract:

BACKGROUND: Ligament Advanced Reinforcement Sytstm (LARS) artificial ligament can avoid the interfibrillar friction compared wiht traditional ligaments, which is conductive for autogenous tissue growth.
OBJECTIVE: To investigate the biocompatibility of LARS artificial ligament used for cruciate ligament reconstruction and bone healing.
METHODS: Twenty goats were randomly divided into two groups: the anterior cruciate ligament insertion at the femur was cut as stump group; the anterior cruciate ligament insertions at the femur and tibia, and all the ligaments and synovial tissues between them were cut as stump resection group. LARS artificial ligament was then implanted into both two groups. At 20 months after implantation, the ligament healing was observed using CT and MRI examinations, the fibrous tissues were observed under scanning electron microscope, and the growth of newborn ligaments was observed by histological staining.
RESULTS AND CONCLUSION: CT findings showed that in the stump group, the number of femoral tunnel enlargement was significantly more than that in the stump resection group (P < 0.05), while the number of tibial tunnel enlargement in the stump group was significantly less than that in the stump resection group (P < 0.05). LARS artificial ligament in the femoral and tibial tunnel and free part of the joint presented with hypointensity on T1- and T2-weighted images, which showed no significant difference between two groups. Under the scanning electron microscope there were obvious dense fibrous tissues between LARS artificial ligaments in both two groups; and the autologous fibrous tissues arranged closely and evenly under high magnification. Hematoxylin-eosin staining results showed that in the two groups, the LARS artificial ligaments in the free part of the articular cavity and bone tunnel were surrounded by a large number of autologous tissues in a fusiform arrangement; autologous fibrous tissues and artificial ligament were wrapped well but arranged irregularly; mature fibrous tissues and few capillary infiltration were found in the bone tunnel and free part of the joint cavity, but without necrotic tissues. Masson staining results showed that the inner and outer parts of the LARS in the bone tunnel were wrapped by blue collagen, the red-stained bones located outside the collagen, and no obvious transitional zone appeared. These results showed that the LARS artificial ligament holds good biocompatibility and fibrous tissue induction, which can promote bone healing.

 

 

Key words: Anterior Cruciate Ligament, Prosthesis and Implants, Tissue Engineering

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