Loosening 5 years after total hip replacement —A radiological study of the McKee-Farrar and Charnley prostheses
Loosening 5 years after total hip replacement —A radiological study of the McKee-Farrar and Charnley prostheses
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DOI：
10.1007/bf00449939
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
K. Djerf;O. Wahlström;S. Hammerby
中科院分区：
文献类型：
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作者：
K. Djerf;O. Wahlström;S. Hammerby
在一项前瞻性研究中，138例采用McKee-Farrar或Charnley技术进行全髋关节置换术的患者每年进行X线监测，持续5年。在前后位和侧位投影上测量六个变量来描述假体的位置。外侧开口> 50°和髋臼杯覆盖< 1.5 cm与髋臼杯松动率增加相关：在5年随访时，71%（98/138）的髋臼杯松动。然而，在本系列中，只有约三分之一的髋臼杯松动可以解释为假体的非最佳位置。McKee-Farrar和Charnley假体之间的松动率无显著差异。
In a prospective study, 138 patients who underwent total hip replacement by the McKee-Farrar or the Charnley technique were monitored yearly for 5 years by X-ray. Six variables were measured on anteroposterior and lateral projections to describe the position of the prosthesis. Lateral opening > 50° and cover of the acetabular cup < 1.5 cm correlated with an increased cup-loosening rate: 71% (98 of 138) were loose at the 5-year follow-up. However, only about one-third of all cup loosenings in the present series can be explained by nonoptimal position of the prosthesis. No significant difference emerged concerning loosening rate between the McKee-Farrar and the Charnley prostheses.