中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (12): 1772-1778.doi: 10.3969/j.issn.2095-4344.2016.12.015

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

钛表面梯度生物活性涂层材料在颅骨修补中的生物性能

黄俊红1,叶党华1,桂志勇1,谭占国1,孟玉丽2   

  1.  (漯河医学高等专科学校第一附属医院,1神经外二科,2肝病科,河南省漯河市 462000
  • 收稿日期:2015-12-30 出版日期:2016-03-18 发布日期:2016-03-18
  • 作者简介:黄俊红,男,1983年生,硕士,主治医师,主要从事显微神经外科研究。

Biological properties of gradient bioactive coatings on titanium surface in the skull repair

Huang Jun-hong1, Ye Dang-hua1, Gui Zhi-yong1, Tan Zhan-guo1, Meng Yu-li2   

  1. 1Second Department of Neurosurgery, 2Department of Hepatopathy, First Affiliated Hospital of Luohe Medical College, Luohe 462000, Henan Province, China
  • Received:2015-12-30 Online:2016-03-18 Published:2016-03-18
  • About author:Hung Jun-hong, Master, Attending physician, Second Department of Neurosurgery, First Affiliated Hospital of Luohe Medical College, Luohe 462000, Henan Province, China

摘要:

  文章快速阅读:

文题释义:

钛网:颅骨修补所使用的钛是一种有一定硬度的平板金属,名为钛网片或钛网。修补之前,可即通过对患者头部进行螺旋CT扫描,将得到的颅骨三维数据转化为颅骨缺损部位三维加工格式数据,数控加工中心机床据此加工出修复体的样板,钛网成型压力机根据样板将钛材料制造成完全符合患者颅骨缺损部位要求的颅骨钛网补片。
常规钛网修复材料的不利因素:钛网修补颅骨缺损,可以达到很好的临床效果,修复外观也较为理想。但在利用钛网进行颅骨缺损修复时,常规钛网缺乏骨诱导能力,与骨组织之间处于机械性接触的状态,与骨之间的结合力较低,影响修复效果。

 

背景:钛网修补颅骨缺损具有良好的临床效果,但由于钛网缺乏骨诱导能力,与骨组织的结合力较差。

 
目的:观察钛表面梯度生物活性涂层材料在颅骨修补中的生物性能。
方法:将含梯度生物活性涂层钛网与纯钛网分别与成骨细胞共培养14 d,采用MTT法检测细胞增殖。纳入71例颅骨缺损患者,其中男43例,女28例,年龄15-60岁,分2组修复,观察组(n=33)采用含梯度生物活性涂层钛网进行修补,对照组(n=38)采用纯钛网进行修补。修补后随访12个月,观察修复效果及不良反应。
结果与结论:①体外实验结果:活性涂层钛网组培养8,10,12,14 d的细胞增殖活性显著高于纯钛网组(P < 0.05)。②体内修补试验结果:观察组术后住院天数、伤口愈合时间显著短于对照组(P < 0.05),末次随访修复效果满意率显著高于对照组(P < 0.05),两组钛网固定牢固,未出现浮动,未出现感染及修补材料外露。③结果表明,钛网表面的梯度生物活性涂层具有良好的生物相容性及促成骨性能。 

关键词: 生物材料, 材料相容性, 钛金属, 颅骨缺损, 颅骨修补材料, 梯度涂层, 羟基磷灰石, 生物相容性, 生物性能

Abstract:

BACKGROUND: Titanium mesh has good clinical effect in repairing skull defects, but due to the lack of bone induction ability, the titanium mesh has a poor integration with the bone tissue.
OBJECTIVE: To observe the biological properties of the gradient bioactive coating materials on the titanium surface in the skull repair.
METHODS: Osteoblasts were co-cultured with the titanium mesh with or without gradient bioactive coatings for 14 days, and then cell proliferation was detected using MTT method. Seventy-one patients with skull defects were enrolled, including 43 males and 28 females, aged 15-60 years, and were subjected to skull repair using the titanium mesh with (observation group, n=3) or without (control group, n=38) gradient bioactive coatings. During the postoperative follow-up of 12 months, the repairing effects and adverse reactions were observed in the two groups.
RESULTS AND CONCLUSION: (1) In vitro cell culture: the cell proliferative ability was increased significantly in the observation group as compared with the control group at 8, 10, 12 and 14 days after cell culture. (2) In vivo repair: the hospital stay and wound healing time in the observation group were significantly lower than those in the control group (P < 0.05), and at the final follow-up, the postoperative recovery effect was significantly higher in the observation group than the control group (P < 0.05). The titanium meshes were fixed firmly in the two groups, with no floating, infection and exposure. These results show that the titanium mesh with gradient bioactive coating has good biocompatibility and osteoinduction capacity.