Fracture of femoral component in a resurfacing total knee arthroplasty

被引：17

作者：

Michos, John ^{[1
]}

Rallis, John ^{[1
]}

Fassoulas, Apostolos ^{[1
]}

机构：

[1] Asclep Voula Hosp, Dept Orthopaed, Athens, Greece

来源：

JOURNAL OF ARTHROPLASTY | 2006年 / 21卷 / 07期

关键词：

fracture; femoral component; total knee arthroplasty;

D O I：

10.1016/j.arth.2005.10.024

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：

We present a case of an unusual complication after a resurfacing total knee arthroplasty. Fracture of the uncemented porous-coated femoral component occurred 4 years after its implantation. The mechanical axis was restored and collateral ligament balance was achieved at the primary procedure. At revision, the femoral component was found fractured at the junction of the trochlea with the medial condyle, anteriorly to the medial peg. A thin layer of fibrous tissue was interposed between bone and metal under the fracture area. Metallurgical analysis of the fractured component revealed fatigue failure but no structural defect. Lack of bony support and excessive cyclic loading led to fracture of the implant.

引用

页码：1068 / 1071

页数：4

共 15 条

[1] Fracture of the tibial tray after total knee arthroplasty [J].