中国组织工程研究 ›› 2021, Vol. 25 ›› Issue (4): 582-587.doi: 10.3969/j.issn.2095-4344.2373

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

保留与不保留残端重建前交叉韧带后移植物腱骨愈合的比较

马子越1,巨啸晨1,张  磊2,孙荣鑫1   

  1. 1新疆医科大学第六附属医院关节外一科,新疆维吾尔自治区乌鲁木齐市    830002;2武警兵团总队医院外一科,新疆维吾尔自治区乌鲁木齐市  830061
  • 收稿日期:2020-03-31 修回日期:2020-04-03 接受日期:2020-05-20 出版日期:2021-02-08 发布日期:2020-11-21
  • 通讯作者: 孙荣鑫,博士,副主任医师/副教授,新疆医科大学第六附属医院关节外一科,新疆维吾尔自治区乌鲁木齐市 830002
  • 作者简介:马子越,男,1992年生,新疆维吾尔自治区乌鲁木齐市人,2020年新疆医科大学毕业,硕士,主要从事外科学运动医学方向研究。
  • 基金资助:
    新疆维吾尔自治区高校科研计划科学研究重点项目(XJEDU2016I027)

Tendon-bone healing in anterior cruciate ligament reconstruction with and without remnant preservation

Ma Ziyue1, Ju Xiaochen1, Zhang Lei2, Sun Rongxin1   

  1. 1First Department of Joint Surgery, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China; 2First Department of Surgery, Armed Police Corps Hospital, Urumqi 830061, Xinjiang Uygur Autonomous Region, China
  • Received:2020-03-31 Revised:2020-04-03 Accepted:2020-05-20 Online:2021-02-08 Published:2020-11-21
  • Contact: Sun Rongxin, MD, Associate chief physician, Associate professor, First Department of Joint Surgery, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • About author:Ma Ziyue, Master, First Department of Joint Surgery, Sixth Affiliated Hospital of Xinjiang Medical University, Urumqi 830002, Xinjiang Uygur Autonomous Region, China
  • Supported by:
    the Scientific Research Program of the Higher Education Institution of Xinjiang Uygur Autonomous Region, No. XJEDU2016I027

摘要:

文题释义:
血管内皮生长因子(vascular endothelial growth factor,VEGF):又称血管通透因子(vascular permeability factor,VPF)。是一种高度特异性的促血管内皮细胞生长因子,具有促进血管通透性增加、细胞外基质变性、血管内皮细胞迁移、增殖和血管形成等作用。
缺氧诱导因子1α(hypoxia inducible factor-1α,HIF-1α):也称低氧诱导因子1α,普遍存在于人和哺乳动物细胞内,在缺氧条件下可稳定表达,当持续在缺氧条件下时,可正向调节多种基因以能在低含氧量的情况下生存,参与机体多种组织的修复与保护。

背景:保残重建前交叉韧带是否可以促进移植物腱骨愈合目前尚有争议,设计实验通过组织学和影像学评估保留残端是否具有促进腱骨愈合的生物学优势。
目的:探讨前交叉韧带重建术中保留或不保留韧带残端对移植物腱骨愈合的影响。
方法:选取新西兰兔40只随机分为不保残重建组与保残重建组,每组20只。选取跟腱作为移植物,分别将所有标本兔的双侧前交叉韧带切断,不保残重建组完全切除前交叉韧带残端,保残重建组由股骨止点处切断,保留胫骨残端,按照正常兔前交叉韧带解剖结构,选取胫骨与股骨骨道进行重建。并于术后6,12周应用免疫组织化学染色检测移植物血管内皮生长因子、缺氧诱导因子1α的表达强度,CD34免疫组化染色标记移植物微血管密度,MRI、CT观察移植腱信号强度并测量骨隧道宽度。
结果与结论:①术后6周,保残重建组中血管内皮生长因子与缺氧诱导因子1α阳性细胞百分比明显高于不保残重建组(P < 0.05),微血管密度也明显高于不保残重建组(P < 0.05);术后12周,两组中血管内皮生长因子与缺氧诱导因子1α阳性细胞百分比与同手术方式6周组对比均下降(P < 0.05),微血管密度较同手术方式6周组均显著升高(P < 0.05),但组间比较差异无统计学意义(P > 0.05);②术后6周,保残重建组骨隧道扩大程度明显低于不保残重建组,移植腱信号强度低于不保残重建组(P < 0.05);12周两组骨隧道扩大程度均减小,移植腱信号强度均减低,组内比较差异显著(P < 0.05),组间比较差异无统计学意义(P > 0.05);③在该实验条件下,在韧带重建早期,保残重建在移植物再血管化、减少骨隧道扩大等方面明显优于不保残组,展现了一定的生物学优势。
https://orcid.org/0000-0001-7416-9886 (马子越)

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

关键词: 前交叉韧带, 保留残端, 腱骨愈合, 因子, 跟腱, 微血管密度, 骨隧道, 实验

Abstract: BACKGROUND: Whether remnant preservation can improve tendon-bone healing remains a controversy. Experiments were designed to evaluate whether remnant preservation has the biological advantage of promoting tendon-bone healing by histology and imaging. 
OBJECTIVE: To investigate the effect of preservation of ligament stump on tendon-bone healing in anterior cruciate ligament reconstruction. 
METHODS: Forty New Zealand rabbits were randomly divided into two groups: anterior cruciate ligament reconstruction group without remnant preservation (group A) and anterior cruciate ligament reconstruction group with remnant preservation (group B), with 20 rabbits in each group. Achilles tendon was selected as the graft, and the bilateral anterior cruciate ligaments of all the rabbits were cut off. In group A, the anterior cruciate ligament stump was completely removed. In group B, the tibia stump was cut off from the femoral stop, and the tibia stump was retained. According to the position of the anterior cruciate ligament of the normal rabbits, the tibia and the femoral canal were selected for reconstruction. At 6 and 12 weeks after surgery, the expression of vascular endothelial growth factor and hypoxia inducible factor-1α was detected by immunohistochemistry. Graft microvessel density was detected by CD34 immunohistochemical staining. The signal intensity of tendon and the width of bone tunnel were observed by MRI and CT.  
RESULTS AND CONCLUSION: (1) The percentage of hypoxia inducible factor-1α and vascular endothelial growth factor positive cells in group B was significantly higher than that in group A at 6 weeks after operation (P < 0.05). The microvessel density in group B was significantly higher than that in group A (P < 0.05). At 12 weeks after operation, the percentage of hypoxia inducible factor-1α and vascular endothelial growth factor positive cells in the two groups decreased 12 weeks after operation compared with that in the same 6-week group (P < 0.05). The microvessel density in the two groups increased 12 weeks after operation compared with that in the same 6-week group (P < 0.05), and there was no significant difference between the two groups (P > 0.05). (2) At 6 weeks after operation, the expansion of bone tunnel in group B was significantly lower than that in group A, and the signal intensity of tendon graft was lower in group B than that in group A (P < 0.05). After 12 weeks, the expansion degree of bone tunnel and the signal intensity of tendon were decreased in both groups (in the same group P < 0.05, between the two groups P > 0.05). (3) In this experiment, in the early stage of ligament reconstruction, the anterior cruciate ligament reconstruction with remnant preservation is superior to the anterior cruciate ligament reconstruction without remnant preservation in terms of graft revascularization and reduction of bone tunnel expansion, showing some biological advantages.

Key words: anterior cruciate ligament, remnant preservation, tendon-bone healing, factor, microvessel density, bone tunnel, experiment

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