ASTM-F732 2011

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F732-00(2011) Standard Test Method for Wear Testing of Polymeric Materials Used in Total Joint Prostheses

Published By	Publication Date	Number of Pages
ASTM	2011	11

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Categories: 11.040.40 - Implants for surgery, prosthetics and orthotics, ASTM

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Description

1.1 This test method describes a laboratory method for evaluating the wear properties of combinations of materials that are being considered for use as bearing surfaces of human total joint prostheses. The body of this test method contains general methods which apply to all types of prosthesis wear applications while individual annexes describe specific wear test methods and clinical validation criteria tailored to each distinct wear application (for example, linear reciprocating motion, ball-cup ( hip-type ) wear, delamination wear, etc.). It is the intent of this test method to rank materials, within each wear application, for polymer wear rates under simulated physiological conditions. It must be recognized, however, that contact geometries and wear motions are simplified using such methods. This test method, therefore, represents only an initial stage in the full wear characterization of a candidate material.

1.2 All candidate materials should be tested in an appropriate joint simulator apparatus using prototype prostheses before being used in clinical trials in patients. The tests described in this test method are used to quickly and reliably screen material combinations for wear performance in different orthopaedic wear applications prior to committing them to more expensive and time-consuming joint simulator testing. In addition, these simplified tests can be used to relate material, surface finish, or other parameters to wear behavior on a more practical basis than is possible in joint simulator tests.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Significance and Use Apparatus and Materials Preparation of Specimens
3	Procedure Report
4	Precision and Bias Keywords A1. TEST METHOD FOR LINEAR RECIPROCATING WEAR MOTION APPLICATIONS A1.1 Scope
5	A1.2 Criteria for Appropriate Test Results A1.3 Apparatus and Materials
6	A2. TEST METHOD FOR FIXED-BEARING BALL-CUP (“HIP-TYPE”) WEAR APPLICATIONS A2.1 Scope A2.2 Criteria for Appropriate Test Results A2.3 Apparatus and Materials
7	A3. TEST METHOD FOR NOMINALLY LINEAR MOTION DELAMINATION WEAR APPLICATIONS A3.1 Scope A3.2 Criteria for Appropriate Test Results
8	A3.3 Apparatus and Materials
9	A3.4 Measurement Methods A4. CHOICE OF WEAR TEST LUBRICANT A4.1 A5. PRECAUTIONS IN PREPARING SPECIMEN SURFACES A5.1 A6.1 A6.2 A6.3 A6.4 A6.5 A6.6 A6.7 A6.8 A6.9
10	X1. RATIONALE X1.1 X1.2 X1.3 X1.4 X1.5 X1.6 X1.7 REFERENCES

Additional information

Standard Title	F732-00(2011) Standard Test Method for Wear Testing of Polymeric Materials Used in Total Joint Prostheses
Published Code	ASTM
Publication Date	2011
Pages Count	11
ICS Codes	11.040.40 - Implants for surgery, prosthetics and orthotics

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ASTM-F732 2011

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