中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (48): 7185-7191.doi: 10.3969/j.issn.2095-4344.2016.48.006

• 脊柱植入物 spinal implant • 上一篇    下一篇

解剖型表面微孔钛合金椎间融合器的生物相容性

阿尖措,王喜民,李占银,许志华   

  1. 青海红十字医院,青海省西宁市 810000
  • 修回日期:2016-09-10 出版日期:2016-11-25 发布日期:2016-11-25
  • 作者简介:阿尖措,男,1977年生,副主任医师,青海省乐都县人,主要从事脊柱外科研究。

Biocompatibility of anatomic porous titanium fusion cage

A Jian-cuo, Wang Xi-min, Li Zhan-yin, Xu Zhi-hua   

  1. Qinghai Red Cross Hospital, Xining 810000, Qinghai Province, China
  • Revised:2016-09-10 Online:2016-11-25 Published:2016-11-25
  • About author:A Jian-cuo, Associate chief physician, Qinghai Red Cross Hospital, Xining 810000, Qinghai Province, China

摘要:

文章快速阅读:


文题释义:
解剖型表面微孔钛合金椎间融合器:融合器表面经过粗糙化处理,更加有利于骨长入的珊瑚状微孔结构。融合器具有较高的表面粗糙度,再加上植入物在移植床上的压合度,连通后路固定装置作为融合节段,能够为机体提供稳定,促进短期内骨生长到微孔表面中,增加二级稳定性。融合器具有独特的的回纹状结构,与实心体钛合金融合器具有一定弹性。
脊柱融合技术:属于腰椎退变性疾病患者常用的治疗方法,手术根据部位可以分为:椎体间融合、后外侧融合及横突间融合等。传统治疗方法采用自体骨行腰椎后外侧融合一直是脊柱融合消除椎体间不正常活动的标准技术,临床上更多的采用椎体间融合技术或进行360°融合技术。与单纯后外侧融合相比,椎体间融合技术通过在椎体间隙内融合装置,能够恢复椎间隙高度,帮助患者恢复椎间孔高度,解除椎间孔狭窄对神经根造成卡压,从而能更好地改善患者症状。
 
摘要
背景:传统的带螺纹水平圆柱形钛合金椎间融合器虽能改善腰椎退变疾病患者的症状,但患者预后较差、椎间融合率较低。
目的:研究解剖型表面微孔钛合金椎间融合器生物相容性及在腰椎退变性疾病中的应用效果。
方法:将50例腰椎退变性疾病患者随机分为两组,试验组(n=25)采用解剖型表面微孔钛合金椎间融合器进行椎间融合治疗,对照组(n=25)采用传统钛合金椎间融合器进行椎间融合治疗。治疗后随访观察融合率、椎间隙高度比、椎间孔高度比、椎体间角度活动域、融合节段前凸角、腰椎前凸角、腰椎水平角及骶骨水平角。
结果与结论:随访6-29个月,试验组骨融合率显著高于对照组(92%,68%,P < 0.05),试验组未出现不良反应,对照组3例出现感染、慢性脑脊液漏等并发症;治疗后3,6个月,试验组椎间隙高度比、椎间孔高度比、椎体间角度活动域(L3/4、L5及L5/S1)、融合节段前凸角、腰椎前凸角、腰椎水平角及骶骨水平角显著大于对照组(P均< 0.05);结果表明,解剖型表面微孔钛合金椎间融合器置入治疗腰椎退变性疾病具有良好生物相容性,且融合率高。

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

ORCID:
0000-0002-0667-2049(阿尖措)

关键词: 骨科植入物, 脊柱植入物, 解剖型表面微孔钛合金椎间融合器, 生物相容性, 腰椎退变性疾病, 应用效果, 传统融合器, 椎间隙高度比, 椎间孔高度比, 节段前凸角, 融合率

Abstract:

BACKGROUND: Traditional horizontal cylindrical titanium alloy interbody fusion cage with screw thread can improve the symptoms of patients with degenerative lumbar disease, but the prognosis is poor and fusion rate is low. 

OBJECTIVE: To study the biocompatibility of anatomic porous titanium fusion cage and application effect of degenerative lumbar disease.
METHODS: Fifty patients with degenerative lumbar diseases were randomly divided into two groups. Patients in the experimental group (n=25) were treated with anatomic porous titanium fusion cage. Patients in the control group (n=25) were treated with traditional titanium fusion cage. After treatment, fusion rate, intervertebral space height ratio, intervertebral foramen height ratio, inter-vertebral angle activity domain, fusion segment lordosis angle, lumbar lordosis angle, lumbar horizontal angle and sacrohorizontal angle were observed.
RESULTS AND CONCLUSION: Patients were followed up for 6 to 29 months. Fusion rate was significantly higher in the experimental group than in the control group (92%, 68%; P < 0.05). No adverse reactions were seen in the experimental group. Infection and chronic cerebrospinal fluid leakage were found in three cases of the control group. At 3 and 6 months after treatment, intervertebral space height ratio, intervertebral foramen height ratio, inter-vertebral angle activity domain (L3/4, L5/5 and L5/S1), fusion segment lordosis angle, lumbar lordosis angle, lumbar horizontal angle and sacrohorizontal angle were significantly larger in the experimental group than in the control group (all P < 0.05). These results suggest that anatomic porous titanium fusion cage for treating degenerative lumbar disease has good biocompatibility, and the fusion rate is high. 

中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Alloys, Spinal Fusion, Tissue Engineering

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