Severe wear from retrieved alumina-on-alumina coupled implant: a case report

被引：2

作者：

Affatato, S

Sudanese, A

Brizio, L

Squarzoni, S

Toni, A

机构：

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

[2] Ist Ortoped Rizzoli, Div Ortopedia & Traumatol 1, I-40136 Bologna, Italy

[3] Policlin S Orsola, Div Ortopedia, Bologna, Italy

[4] CNR, Ist Citomorfol NP, I-40126 Bologna, Italy

来源：

INTERNATIONAL JOURNAL OF ARTIFICIAL ORGANS | 2001年 / 24卷 / 09期

关键词：

ceramic acetabular cup; ceramic femoral head; massive ceramic wear; shadowgraphic measurements; volumetric wear;

D O I：

10.1177/039139880102400901

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：

This study details the in vivo wear behavior of an alumina acetabular cup and a femoral head on a retrieved non-cemented hip prosthesis. A commercial alumina ceramic-on-ceramic prosthesis was retrieved from a patient previously treated for bilateral hip arthrosis in "coxa profunda". Massive wear was found on the retrieved alumina ceramic head and acetabular cup. The total measured penetration depth was 1.9 mm while the total calculated weight loss for the acetabular cup was 6.06 g. The study underlines the head-cup instability caused by cup loosening as major cause of severe ceramic wear.

引用

页码：655 / 662

页数：8

共 30 条

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Hip prothesis:: an in vitro wear protocol based on a comparison between gravimetric and profilometric analysis [J].