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U.S. Department of Health and Human Services

Recognized Consensus Standards: Medical Devices
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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 051 Date of Entry 01/14/2019 
FR Recognition Number 11-342
Standard
ASTM  F732-17
Standard Test Method for Wear Testing of Polymeric Materials Used in Total Joint Prostheses
Scope/Abstract
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, and so forth). 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.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§888.3100 Prosthesis, Ankle, Semi-Constrained, Cemented, Metal/Composite Class 2 KMD
§888.3110 Prosthesis, Ankle, Semi-Constrained, Cemented, Metal/Polymer Class 2 HSN
§888.3120 Prosthesis, Ankle, Cemented, Non-Constrained Class 3 KXC
§888.3160 Prosthesis, Elbow, Semi-Constrained, Cemented Class 2 JDB
§888.3340 Prosthesis, Hip, Semi-Constrained, Composite/Metal Class 2 KMC
§888.3350 Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Cemented Class 2 JDI
§888.3350 Hip, Semi-Constrained, Cemented, Metal/Polymer + Additive, Cemented Class 2 OQH
§888.3353 Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous, Uncemented Class 2 LZO
§888.3353 Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous Cemented, Osteophilic Finish Class 2 MAY
§888.3353 Prosthesis, Hip, Semi-Constrained, Uncemented, Metal / Polymer, Non-Porous, Calcium Phosphate Class 2 MEH
§888.3358 Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Porous Uncemented Class 2 LPH
§888.3358 Prosthesis, Hip, Semi-Constrained, Uncemented, Metal/Polymer, Porous Class 2 MBL
§888.3358 Hip Prosthesis, Semi-Constrained, Cemented, Metal/Polymer, + Additive, Porous, Uncemented Class 2 OQG
§888.3410 Prosthesis, Hip, Pelvifemoral Resurfacing, Metal/Polymer Class 3 KXB
§888.3410 Prosthesis, Hip, Pelvifemoral Resurfacing, Metal/Polymer, Uncemented Class 3 OCG
§888.3490 Prosthesis, Knee, Non-Constrained (Metal-Carbon Reinforced Polyethylene) Cemented Class 2 KMB
§888.3490 Prosthesis, Knee, Femorotibial, Non-Constrained, Metal/Composite Cemented Class 2 KTX
§888.3500 Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Metal/Composite Class 2 KYK
§888.3520 Prosthesis, Knee, Femorotibial, Non-Constrained, Cemented, Metal/Polymer Class 2 HSX
§888.3530 Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Metal/Polymer Class 2 HRY
§888.3540 Prosthesis, Knee, Patello/Femoral, Semi-Constrained, Cemented, Metal/Polymer Class 2 KRR
§888.3560 Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer Class 2 JWH
§888.3560 Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uhmwpe, Pegged, Cemented, Polymer/Metal/Polymer Class 2 MBV
§888.3560 Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer + Additive/Metal/Polymer + Additive Class 2 OIY
§888.3565 Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer Class 2 MBH
§888.3650 Prosthesis, Shoulder, Non-Constrained, Metal/Polymer Cemented Class 2 KWT
§888.3660 Prosthesis, Shoulder, Semi-Constrained, Metal/Polymer Cemented Class 2 KWS
§888.3670 Prosthesis, Shoulder, Semi-Constrained, Metal/Polymer, Uncemented Class 2 MBF
§888.3800 Prosthesis, Wrist, 2 Part Metal-Plastic Articulation, Semi-Constrained Class 2 JWI
§888.3800 Prosthesis, Wrist, 3 Part Metal-Plastic-Metal Articulation, Semi-Constrained Class 2 JWJ
§888.3800 Prosthesis, Wrist, Semi-Constrained Class 2 KWM
N/A Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Polymer/Metal/Polymer Class 3 LXY
N/A Prosthesis, Toe (Metatarsophalangeal), Joint, Metal/Polymer, Semi-Constrained LZJ
N/A Prosthesis, Knee, Patello/Femorotibial, Unconstrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer Class 3 MBD
N/A Prosthesis, Shoulder, Humeral (Bipolar Hemi-Shoulder) Metal/Polymer, Cemented Or Uncemented Class 3 MJT
N/A Semi-Constrained Metal/Polymer Finger Joint Prosthesis HDE MPK
N/A Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Metal/Polymer, Mobile Bearing Class 3 NJL
Relevant FDA Guidance and/or Supportive Publications*
Guidance for Industry and FDA: Class II Special Controls Guidance Document: Knee Joint Patellofemorotibial and Femorotibial Metal/Polymer Porous-Coated Uncemented Prostheses, Issued January 2003

Appropriate Use of Voluntary Consensus Standards in Premarket Submissions for Medical Devices - Guidance for Industry and Food and Drug Administration Staff, issued September 2018.
FDA Technical Contact
 Terry O. Woods
  FDA/OC/CDRH/OSPTI/ORR/DSCA
  301-796-2503
  terry.woods@fda.hhs.gov
Standards Development Organization
ASTM ASTM International http://www.astm.org/
FDA Specialty Task Group (STG)
Orthopedic
*These are provided as examples and others may be applicable.
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