PRELIMINARY-STUDY OF THE EFFECT OF AGING FOLLOWING IRRADIATION ON THE WEAR OF ULTRAHIGH-MOLECULAR-WEIGHT POLYETHYLENE

被引：58

作者：

FISHER, J

CHAN, KL

HAILEY, JL

SHAW, D

STONE, M

机构：

[1] Department of Mechanical Engineering, University of Leeds

[2] Department of Orthopaedic Surgery, Leeds General Infirmary, Leeds

来源：

JOURNAL OF ARTHROPLASTY | 1995年 / 10卷 / 05期

关键词：

AGING; IRRADIATION; WEAR; ULTRAHIGH-MOLECULAR-WEIGHT POLYETHYLENE; DEGRADATION; POLYETHYLENE WEAR;

D O I：

10.1016/S0883-5403(05)80217-7

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：

Several studies have indicated that degradation of ultrahigh-molecular-weight polyethylene following gamma irradiation in air adversely affects the mechanical properties of the material; however, it is not known how this subsequently affects its wear rate. Wear studies have therefore been performed on three groups of ultrahigh-molecular-weight polyethylene: unirradiated material, recently irradiated material (aged for 2 months), and aged irradiated material (aged for 5 years). The aging took place in sterile packaging on the shelf. The wear studies were carried out on a tri-pin-on-disk wear tester, with a pin from each type of material being studied in each test. In each test the wear rate of the nonirradiated material was slightly lower than the 2-month-aged, irradiated material. The 5-year-aged, irradiated material had the highest wear rate, and this was significantly greater than that of the unirradiated material (P < .05).

引用

页码：689 / 692

页数：4

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