中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (43): 6977-6982.doi: 10.3969/j.issn.2095-4344.2015.43.017

• 纳米生物材料 nanobiomaterials • 上一篇    下一篇

纳米羟基磷灰石/聚酰胺66复合生物活性支撑材料对椎体结构和高度的影响

张德盛,刘树平,刘跃洪,周 宇,陈 曦   

  1. 成都中医药大学附属德阳医院、德阳临床医学院、德阳市人民医院骨科,四川省德阳市 618000
  • 收稿日期:2015-07-23 出版日期:2015-10-15 发布日期:2015-10-15
  • 通讯作者: 张德盛,德阳市人民医院,四川省德阳市 618000
  • 作者简介:张德盛,男,1971年生,四川省德阳市人,汉族,博士,副主任医师,主要从事脊柱外科、关节外科研究。

Effect of nanohydroxyapatite/polyamide 66 composite on the vertebral structure and height

Zhang De-sheng, Liu Shu-ping, Liu Yue-hong, Zhou Yu, Chen Xi   

  1. Department of Orthopedics, Deyang Hospital, Chengdu University of Traditional Chinese Medicine, Deyang Clinical School of Medicine, Deyang City People’s Hospital, Deyang 618000, Sichuan Province, China
  • Received:2015-07-23 Online:2015-10-15 Published:2015-10-15
  • Contact: Zhang De-sheng, Department of Orthopedics, Deyang Hospital, Chengdu University of Traditional Chinese Medicine, Deyang Clinical School of Medicine, Deyang City People’s Hospital, Deyang 618000, Sichuan Province, China
  • About author:Zhang De-sheng, M.D., Associate chief physician, Department of Orthopedics, Deyang Hospital, Chengdu University of Traditional Chinese Medicine, Deyang Clinical School of Medicine, Deyang City People’s Hospital, Deyang 618000, Sichuan Province, China

摘要:

背景:纳米羟基磷灰石/聚酰胺66复合物在力学属性方面和人体皮质骨十分接近,且具有成骨活性,是一种安全可靠的骨材料。
目的:探讨纳米羟基磷灰石/聚酰胺66复合生物活性支撑材料在恢复椎体结构和高度中的作用。
方法:纳入177例脊柱疾病患者,其中男116例,女61例,年龄17-81岁,包括97例脊柱骨折、5例脊柱原发性肿瘤、17例脊柱结核及58例颈椎病,均实施前路减压纳米羟基磷灰石/聚酰胺66复合生物活性支撑体植骨融合内固定治疗。治疗后随访36个月,进行影像学分析、Frankel脊髓损伤分级、植骨融合、目测类比评分、JOA及SF-36评分评估。
结果与结论:经随访,除1例颈椎骨折患者在术后出现轻微支撑体移位之外,其余患者均未出现支撑体脱出或破裂现象,植骨融合率为96.0%,平均支撑体下沉距离为1.7 mm;与治疗前比较,脊柱骨折97例患者治疗后的神经功能得到有不同程度改善(P < 0.05);177例患者的目测类比评分、JOA评分及SF-36评分较治疗前显著改善(P < 0.05)。表明在脊柱重建过程中使用纳米羟基磷灰石/聚酰胺66复合生物活性支撑材料可提高植骨融合率,有效恢复椎体结构和高度。
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, 纳米材料, 羟基磷灰石, 植入材料, 脊柱融合, 椎体高度, 组织构建

Abstract:

BACKGROUND: Nanohydroxyapatite/polyamide 66 composite is very close to the human cortical bone in terms of mechanical properties, and has osteogenic activity, which is a safe and reliable bone material.
OBJECTIVE: To investigate the effect of nanohydroxyapatite/polyamide 66 composite bioactive supporting material on the restoration of vertebral structure and height.
METHODS: Totally 177 patients with spinal diseases, 116 males and 61 females, aged 17-81 years, were enrolled, including 97 cases of spinal fractures, 5 cases of primary tumors of the spine, 17 cases of spinal tuberculosis and 58 cases of cervical spondylosis. The nanohydroxyapatite/polyamide 66 composite bioactive supporting body was filled into the bone grafts of patients and then subjected to anterior decompression and internal fixation. After 36 months of follow-up, imaging analysis, Frankel spinal cord injury classification, bone graft fusion, visual analog scale scores, Short Form 36 and Japanese Orthopedic Association scores were evaluated.
RESULTS AND CONCLUSION: During the follow-up, except one patient with cervical spine fracture appeared to have slight supporting body displacement, there was no supporting body prolapse or rupture phenomena. The bone graft fusion rate was 96.0%, the average supporting body sinking distance was 1.7 mm. After treatment, 97 patients with spinal fractures had different degree of improvement in the neurological function (P < 0.05); the visual analog scale scores, Short Form 36 and Japanese Orthopedic Association scores were improved significantly in all the 177 patients compared with before treatment (P < 0.05). These results demonstrate that the use of nanohydroxyapatite/polyamide 66 composite bioactive supporting material for spinal reconstruction can improve the bone fusion rate, and restore the vertebral structure and height effectively.
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: Durapatite, Spinal Fusion, Nylons, Tissue Engineering