Blood flow to the femoral head and hip resurfacing arthroplasty

被引:10
作者
Beaule, P. E. [1 ]
Ganz, R. [2 ]
Leunig, M. [2 ,3 ]
机构
[1] Univ Ottawa, Div Orthopaed Surg, Head Adult Reconstruct Serv, Ottawa Hosp, Ottawa, ON K1H 8L6, Canada
[2] Univ Bern, Fak Med, Bern, Switzerland
[3] Schulthess Klin, Zurich, Switzerland
来源
ORTHOPADE | 2008年 / 37卷 / 07期
关键词
hip; osteoarthrosis; femoral head; blood flow; hip resurfacing;
D O I
10.1007/s00132-008-1300-y
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
After disastrous outcomes due to wear-induced osteolysis in the 1980s, hip resurfacing arthroplasty has undergone a renaissance, mainly because of the introduction of metal-on-metal bearings. However, there are still problems associated with this technique, such as femoral neck fractures, neck thinning, and aseptic loosening, and their causes are still being investigated. During the last years, increasing evidence has shown that both the frequently used posterior approach to the hip as well as preparation of the femoral epiphysis can impair blood supply to the femoral head. In the presence of mechanical stresses (impaction, heat development during cement polymerization) during the implantation, the epiphysis might not be able to compensate for this. This paper summarizes the current understanding of the blood supply to the femoral head and proposes a way to preserve the viability after hip resurfacing.
引用
收藏
页码:659 / 666
页数:8
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