中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (43): 6953-6957.doi: 10.3969/j.issn.2095-4344.2015.43.012

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

钛质与聚醚醚酮融合器用于腰椎后路减压椎间植骨融合内固定的效果比较

刘瑞端1,肖荣驰1,唐志宏1,靳安民2   

  1. 1桂林医学院附属医院,广西壮族自治区桂林市  541001;2南方医科大学珠江医院,广东省广州市  510515
  • 收稿日期:2015-07-24 出版日期:2015-10-15 发布日期:2015-10-15
  • 通讯作者: 肖荣驰,教授,桂林医学院附属医院,广西壮族自治区桂林市 541001
  • 作者简介:刘瑞端,男,1982年生,河南省濮阳县人,汉族,南方医科大学骨科学在读博士,主治医生,主要从事脊柱外科研究。
  • 基金资助:

    桂林市科学研究与计划开发项目(20140120-1-14)

Titanium cage versus polyetheretherketone cage in posterior lumbar interbody fusion with pedicle screw fixation

Liu Rui-duan1, Xiao Rong-chi1, Tang Zhi-hong1, Jin An-min2   

  1. 1Affiliated Hospital of Guilin Medical University, Guilin 541001, Guangxi Zhuang Autonomous Region, China; 2Zhujiang Hospital of Southern Medical University, Guangzhou 510515, Guangdong Province, China
  • Received:2015-07-24 Online:2015-10-15 Published:2015-10-15
  • Contact: Xiao Rong-chi, Professor, Affiliated Hospital of Guilin Medical University, Guilin 541001, Guangxi Zhuang Autonomous Region, China
  • About author:Liu Rui-duan, Studying for doctorate, Attending physician, Affiliated Hospital of Guilin Medical University, Guilin 541001, Guangxi Zhuang Autonomous Region, China
  • Supported by:

    the Scientific Research and Plan Development Project of Guilin City, No. 20140120-1-14

摘要:

背景:钛合金融合器因弹性模量较高,术后易出现相邻椎体下沉及应力遮挡延迟融合等缺点,近年来逐渐被聚醚醚酮融合器所取代。
目的:对比钛合金融合器、聚醚醚酮融合器用于单节段腰椎后路减压椎间植骨融合内固定的疗效。
方法:纳入104例单节段腰椎疾病患者,其中男57例,女47例,年龄(41.2±10.5)岁,由腰椎后路置入双侧钛合金椎弓根钉后行椎板减压,将椎板减压后的颗粒骨放入合适融合器内进行椎间植骨融合,其中54例置入钛合金融合器,50例置入聚醚醚酮融合器。治疗后随访24个月,评估两组腰部与下肢目测类比评分、JOA评分,CT检查椎间植骨融合及融合器下沉情况。
结果与结论:随访12,24个月,两组腰部与下肢目测类比评分、JOA评分均较治疗前明显改善(P < 0.05),但两组间比较差异无显著性意义。随访12个月时,钛合金组融合率为94%,聚醚醚酮组为74%,组间比较差异有显著性意义(P=0.012);随访24个月,钛合金组植骨融合率为100%,聚醚醚酮组为84%,组间比较差异有显著性意义(P=0.016)。随访24个月,钛合金组融合器下沉率为36%,聚醚醚酮组为30%,两组间比较差异无显著性意义。结果并未证实聚醚醚酮融合器的临床效果优于钛合金融合器。
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: 生物材料, 骨生物材料, 聚醚醚酮, 钛质, 融合器, 单节段, 腰椎, 椎间融合, 疗效, 生物相容性

Abstract:

BACKGROUND: Due to the higher modulus of elasticity, titanium cages are prone to have the following shortcomings: adjacent vertebral sinking and delayed fusion resulting from stress shielding; therefore, in recent years, it has been gradually replaced by polyetheretherketone cages.
OBJECTIVE: To compare the clinical and radiographic outcomes of patients undergoing posterior lumbar interbody fusion with pedicle screw fixation in which either a polyetheretherketone cage or a titanium cage was implanted.
METHODS: The pre- and postoperative data of 104 patients who underwent single-level posterior lumbar interbody fusion were collected and analyzed, including 57 males and 47 females, aged (41.2±10.5) years. The 58 of 104 patients received the titanium cage and the remaining 52 patients received the polyetheretherketone cage. Visual analog scale scores and Japanese Orthopaedic Association Scores of the lumbar and lower limbs were recorded at 24 hours of postoperative follow-up; CT scan was used to detect bone fusion and cage subsidence.
RESULTS AND CONCLUSION: After 12 and 24 months of follow-up, the visual analog scale scores and 
Japanese Orthopaedic Association Scores of the lumbar and lower limbs were all improved in the two groups compared with the previous (P < 0.05), but there was no difference between the two groups. At 12 and 24 months of follow-up, the fusion rates were 94% and 100% in the titanium cage group as well as 74% and 84% in the polyetheretherketone cage group, respectively, and a significant difference was found between the two groups (P=0.012 and P=0.016). At 24 months of follow-up, the subsidence rate was 36% in the titanium cage group and 30% in the polyetheretherketone cage group, and there was no difference between the two groups. These findings indicate that the superiority of polyetheretherketone cages over titanium cages has not been demonstrated.
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

Key words: Spinal Fusion, Decompression, Surgical, Lumbar Vertebrae, Tissue Engineering