Alumina femoral head fracture:: an in vitro study

被引：3

作者：

Affatato, S

Ghisolfi, E

Cacciari, GL

Toni, A

机构：

[1] Ist Ortopedici Rizzoli, Lab Tecnol Med, I-40136 Bologna, Italy

[2] FN SPA, Bosco Marengo, Alessandria, Italy

[3] Officine Ortoped Rizzoli, Bologna, Italy

[4] Univ Bologna, Clin Ortoped, Bologna, Italy

来源：

INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS | 2000年 / 23卷 / 04期

关键词：

alumina fracture; in vitro test; fractures on hip simulator; destructive analysis; non destructive analysis;

D O I：

10.1177/039139880002300408

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 [生物医学工程];

摘要：

A fracture of a ceramic femoral head is reported in this study. Fractures of ceramic femoral heads are uncommon and reports on this complication are rare. After 3 million cycles, on a twelve station hip simulator that tested alumina femoral head against polyethylene acetabular cup, fracture of the ceramic ball was observed The retrieved specimen consisted of three large ceramic fragments from the same ceramic femoral head, a polyethylene acetabular cup and a stainless steel jig. Careful and detailed examination of the removed components was made. The fracture of the ceramic ball resulted in damage to the metal taper of the jig component which was fixed into the simulator.

引用

页码：256 / 260

页数：5

共 20 条

[1]

Mixed oxides prosthetic ceramic ball heads.: Part 1:: effect of the ZrO2 fraction on the wear of ceramic on polyethylene joints [J].