Clinical and biological assessment of cemented titanium femoral stems: an 11-year experience

被引:15
作者
Boyer, Patrick [1 ]
Lazennec, Jean-Yves [2 ]
Poupon, Joel [3 ]
Rousseau, Marc-Antoine [2 ]
Ravaud, Philippe [1 ]
Catonne, Yves [2 ]
机构
[1] Hop Xavier Bichat, Dept Orthopaed & Trauma Surg, F-75018 Paris, France
[2] Pitie Salpetriere, Paris, France
[3] Lariboisiere, Paris, France
关键词
TOTAL HIP-ARTHROPLASTY; REPLACEMENT; PROSTHESIS; COMPONENTS; SERUM; OSTEOLYSIS; CORROSION; FAILURE;
D O I
10.1007/s00264-008-0678-9
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
100224 [整形外科学];
摘要
This study prospectively assessed the outcome of 134 cemented titanium stems and serum ion levels. The stems were polished (0.1 mu m Ra) with circular cross section. At the end point, only one stem revision was performed for aseptic loosening, and two were planned due to subsidence greater than 5 mm. Non-progressive radiolucencies in zones 1 and 7 were observed in 16 hips at the cement-bone interface without osteolysis. Median serum titanium concentrations were below the detection limit (30 nmol/l) except in patients with failed stems. The overall stem survival rate was 97.7% at nine years, which is comparable to other series of cemented stems. The protective layer of titanium oxide coating the stem and a thick cement mantle may help resist aseptic loosening. In addition, satisfactory monitoring of the stem was reached using titanium serum level determination.
引用
收藏
页码:1209 / 1215
页数:7
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