Early polyethylene wear and osteolysis in cementless total hip arthroplasty: the influence of femoral head size and polyethylene thickness.
Early polyethylene wear and osteolysis in cementless total hip arthroplasty: the influence of femoral head size and polyethylene thickness.
复制标题
非骨水泥全髋关节置换术中的早期聚乙烯磨损和骨质溶解：股骨头尺寸和聚乙烯厚度的影响。
DOI：
10.1016/s0883-5403(99)90013-x
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发表时间：
1999
影响因子：
3.5
通讯作者：
Ching
中科院分区：
文献类型：
--
作者：
Po;Chun;Wen;Yuan;Ching
我们研究了350例原发性无骨水泥全髋关节置换术（tha）患者的初始聚乙烯厚度、早期聚乙烯衬垫磨损和骨溶解。所有的假体设计相同，并使用Omnifit组件。在32毫米头组中，平均衬套磨损与聚乙烯厚度显著相关（P < 0.001），根据对数模型，随着初始聚乙烯变薄，衬套磨损迅速增加，尽管这种增加没有统计学意义（r = - 0.633）。32毫米头组聚乙烯厚度不足被认为是导致衬垫磨损的主要原因。推荐无水泥金属衬底tha的最小聚乙烯厚度为7mm。使用大头颅和不良假体设计似乎是导致股骨骨溶解发生率高得令人无法接受的原因。
We examined initial polyethylene thickness, early polyethylene liner wear, and osteolysis in 350 primary, cementless total hip arthroplasties (THAs). All of the prostheses were of identical design and used Omnifit components. In the 32-mm head group, the mean liner wear correlated significantly with polyethylene thickness (P < .001) and increased rapidly with initial thinner polyethylene following a logarithmic model, although this increase was not statistically significant (r = −.633). Inadequate polyethylene thickness in the 32-mm head group was implicated as the major cause of higher liner wear. A minimal polyethylene thickness of 7 mm is recommended in cementless metal-backed THAs. The use of a large head combined with poor prosthetic design appeared to be responsible for the unacceptably high incidence of femoral osteolysis.