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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 056 Date of Entry 06/07/2021 
FR Recognition Number 11-377
Standard
ASTM F2083-21
Standard Specification for Knee Replacement Prosthesis
Scope/Abstract
1.1 This specification is intended to cover all the widely used generic types of knee replacement prostheses used to provide functioning articulation. This includes total knee replacement (TKR) and unicondylar knee replacement (UKR) prostheses of both fixed and mobile bearing varieties, and for primary or revision surgeries. Although a patellar component may be considered an integral part of a TKR, the detailed description of this component is excluded here since it is provided in Specification F1672.

1.2 Included within the scope of this specification are replaceable components of modular designs, for example, tibial articulating surfaces and all components labeled for, or capable of, being used with cement, regardless of whether the same components can also be used without cement.

1.3 This specification is intended to provide basic descriptions of material and prosthesis geometry. Additionally, those characteristics determined to be important to in-vivo performance of the prosthesis are defined. However, compliance with this specification does not itself define a device that will provide adequate clinical performance.

1.4 Excluded from the scope are hemiarthroplasty devices that replace only the femoral or tibial surface, but not both; and patellofemoral prostheses. Also excluded are devices designed for custom applications.
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.
Transition Period
FDA recognition of ASTM F2083-12 [Rec# 11-258] will be superseded by recognition of ASTM F2083-21 [Rec# 11-377]. FDA will accept declarations of conformity, in support of premarket submissions, to [Rec# 11-258] until July 10, 2022. After this transition period, declarations of conformity to [Rec# 11-258] will not be accepted.
Public Law, CFR Citation(s) and Procode(s)*
Regulation Number Device Name Device Class Product Code
§888.3565 Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer Class 2 MBH
§888.3490 Prosthesis, Knee, Femorotibial, Non-Constrained, Metal/Composite Cemented Class 2 KTX
§888.3490 Prosthesis, Knee, Non-Constrained (Metal-Carbon Reinforced Polyethylene) Cemented Class 2 KMB
§888.3500 Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Metal/Composite Class 2 KYK
§888.3535 Prosthesis, Knee, Femorotibial, Unicompartmental/Unicondylar, Uncemented, Porous-Coated, Metal/Polymer Class 2 NJD
Unclassified Prosthesis, Knee, Femorotibial, Unicompartmental, Semi-Constrained, Metal/Polymer, Mobile Bearing Class 3 NRA
Unclassified Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Polymer/Metal/Polymer Class 3 LXY
Unclassified Prosthesis, Knee, Patello/Femorotibial, Unconstrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer Class 3 MBD
Unclassified Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Metal/Polymer, Mobile Bearing Class 3 NJL
§888.3480 Metal Cemented Constrained Femorotibial Knee Prosthesis Class 3 KRN
§888.3510 Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/Polymer Class 2 KRO
§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
§888.3550 Prosthesis, Knee, Patello/Femorotibial, Constrained, Cemented, Polymer/Metal/Metal Class 3 KRP
§888.3550 Prosthesis, Knee, Patello/Femorotibial, Constrained, Cemented, Polymer/Metal/Polymer Class 2 KRQ
§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
§888.3560 Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer Class 2 JWH
Relevant FDA Guidance and/or Supportive Publications*
Class II Special Controls Guidance Document: Knee Joint Patellofemorotibial and Femorotibial Metal/Polymer Porous-Coated Uncemented Prostheses; Guidance for Industry and FDA, issued January 2003.
FDA Technical Contact
 John Goode
  FDA/OC/CDRH/OPEQ/OHTVI/DHTVIA/
  301-796-6407
  john.goode@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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