中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (39): 5788-5793.doi: 10.3969/j.issn.2095-4344.2016.39.002

• 人工假体 artificial prosthesis • 上一篇    下一篇

股骨头坏死和骨关节炎患者初次全髋关节置换后髋臼假体周围的骨密度差异

陈金栋,许 新,孙东红,闵翠霞,陈 扬,刘秀梅   

  1. 河北医科大学附属华北石油管理局总医院骨二科,河北省任丘市 062550
  • 修回日期:2016-07-09 出版日期:2016-09-23 发布日期:2016-09-23
  • 通讯作者: 陈金栋,河北医科大学附属华北石油管理局总医院骨二科,河北省任丘市 062550
  • 作者简介:陈金栋,河北医科大学附属华北石油管理局总医院骨二科,河北省任丘市 062550

Difference in periprosthetic acetabular bone mineral density between osteonecrosis and osteoarthritis patients after primary total hip arthroplasty

Chen Jin-dong, Xu Xin, Sun Dong-hong, Min Cui-xia, Chen Yang, Liu Xiu-mei   

  1. Second Department of Orthopedics, Huabei Oil Field General Hospital of Hebei Medical University, Renqiu 062550, Hebei Province, China
  • Revised:2016-07-09 Online:2016-09-23 Published:2016-09-23
  • Contact: Chen Jin-dong, Second Department of Orthopedics, Huabei Oil Field General Hospital of Hebei Medical University, Renqiu 062550, Hebei Province, China
  • About author:Chen Jin-dong, Second Department of Orthopedics, Huabei Oil Field General Hospital of Hebei Medical University, Renqiu 062550, Hebei Province, China

摘要:

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文题释义:
双能X射线吸收测定法:其测定过程是将从X射线球管释放的X射线通过kedge吸收过滤,分成高低2种X射线(40 keV和70-80 keV),从而测定骨密度。双能X射线吸收计的照射源是X射线,是使用直接由X射线发生器或X射线射频滤波所产生的不同能量射束。
全髋关节:由人工髋臼和人工股骨头组成,过去二者均用金属材质,但实践证明并发症多。目前国内外均用超高分子聚乙烯制成的髋臼,低强度模量金属制成的人工股骨头。人工全髋关节的类型和设计较多,主要是股骨头的直径和与骨固定的髋臼面的设计。较厚的髋臼,直径相对小的人工股骨头组成的全髋,头臼磨擦力小,人工臼稳定,局部反应小。
 
摘要
背景:股骨头坏死患者初次全髋关节置换后失败率高于骨关节炎患者,特别是髋臼侧假体,假体周围骨密度是影响假体生存质量的重要因素。
目的:观察初次全髋关节置换后,股骨头坏死患者以及骨关节炎患者髋臼假体周围骨密度的差异以及存在差异的具体部位。
方法:共纳入股骨头坏死患者和骨关节炎患者各50例,利用双能X射线吸收检查,比较经相同的全髋关节置换后5年患者的髋臼假体周围骨密度。按照De Lee和Charnley描述的方法将髋臼部位影像分区,对比分析两组研究对象髋臼不同分区的骨密度。
结果与结论:①髋臼假体周围骨密度:股骨头坏死组在髋臼下部和上部的骨密度明显低于骨关节炎组 (P < 0.05),而两组髋臼中部骨密度差异无显著性意义;②结果证实:股骨头坏死患者的髋臼假体髋臼下部以及上部区域骨密度显著低于骨关节炎患者。

ORCID: 0000-0002-7862-1304(陈金栋)|

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

关键词: 骨科植入物, 人工假体, 髋, 全髋关节置换, 双能X射线吸收测定, 股骨头坏死, 骨关节炎, 骨密度, 髋臼, 假体周围, 感兴趣区域

Abstract:

BACKGROUND: Failure rate is higher in patients with osteonecrosis of femoral head than in osteoarthritis patients after primary total hip arthroplasty, especially acetabular prosthesis. Bone mineral density around the prosthesis is a key factor for quality of life of the prosthesis. 
OBJECTIVE: To observe the difference in periprosthetic bone mineral density between patients with osteonecrosis of the femoral head and osteoarthritis patients and the exact location of differences after primary total hip arthroplasty.

METHODS: Fifty patients with osteonecrosis of femoral head and fifty osteoarthritis patients were enrolled in this study. Dual energy X-ray absorptiometry examination was used to compare bone mineral density 5 years after total hip arthroplasty. In accordance with De Lee’s and Charnley’s methods, images of acetabulum were divided. The bone mineral density of different areas of the acetabulum was compared between the two groups. 
RESULTS AND CONCLUSION: (1) Periprosthetic bone mineral density: Bone mineral density in the lower part and upper part of the acetabulum was significantly lower in the osteonecrosis group than in the osteoarthritis group (P < 0.05). No significant difference in bone mineral density in the middle of the acetabulum was detected between the two groups. (2) Results confirmed that the bone mineral density in the lower and the upper parts of the acetabular component was significantly lower in patients with osteonecrosis of femoral head than in patients with osteoarthritis. 

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: Tissue Engineering, Bone Density, Femur Head Necrosis, Osteoarthritis

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