Tool · 510(k)

510(k) Predicate Finder

Find potential predicate devices for your 510(k) submission. Enter a K-number to find all clearances with the same product code, a three-letter product code to browse clearances directly, or search by device name.

Product Code: KRO FDA class 2

Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/Polymer

Orthopedic

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This device is a constrained cemented femorotibial knee prosthesis made from metal and polymer, used in total knee replacement surgery for patients who require a higher degree of mechanical constraint due to ligament insufficiency or severe joint deformity. It is classified as FDA Class 2, indicating moderate risk, and requires 510(k) premarket notification. The product code is KRO, regulated under 21 CFR 888.3510 within the Orthopedic specialty. This device is designated as an implant.

510(k) Clearances

50+ matches
K Number
Device Name
ATTUNE™ Revision Hinge Knee
EVOLUTION® Hinge Knee System;GUARDIAN™ limb Salvage System;DCW Modular Distal Femoral System;REPIPHYSIS™ Limb Salvage System;EVOLUTION® MP Total Knee System; EVOLUTION® MP Total Knee System; EVOLUTION® MP Adaptive CS Insert; EVOLUTION® MP Adaptive PS Tibial Insert; EVOLUTION® MP CS/CR Porous Femur/EVOLUTION® Adaptive CS and PS Inserts; EVOLUTION® Revision CCK System; ADVANCE® Double High Insert; ADVANCE® A-CLASS® Tibial Insert; ADVANCE® Knee System; ADVANCE® Ultra-Congruent Tibial Inse
ATTUNE Total Knee System, ATTUNE Cementless Knee System, LPS Limb Preservation System, Sigma High Performance (HP) Partial Knee System
EVOLUTION® Hinge Knee System
Triathlon® Hinge Knee System; Triathlon® Revision Insert X3®
Modular Rotating Hinge Knee Systems and Compatible Components
Triathlon® Hinge Knee System
LINK Endo-Model EVO Knee System
ELEOS Limb Salvage System
LINK Endo-Model Knee System, Femoral Segments (Augments), UHMWPE
GMK Revision & Hinge Extension - TiNbN Coating
Zimmer Segmental System
Instruments for LINK MEGASYSTEM-C Family
Attune Revision LPS Inserts
USTAR II System
GMK Hinge, GMK Revision
GMK Revision Femoral Distal Augmentation
ELEOS Limb Salvage System
LINK Endo-Model Knee System with PorEx (TiNbN) coating, Link Sled Knee System with PorEx (TiNbN) coating
LINK® MEGASYSTEM-C®
Smith and Nephew Legion Hinge Knee System
PATIENT SPECIFIC SMILES TOTAL KNEE REPLACEMENT
Zimmer Segmental System XT Components
The LINK® Endo-Model® Knee System
PATIENT SPECIFIC DISTAL FEMORAL
BIOMET SIDE ACCESS DISTAL FEMORAL EXPANDABLE
JTS EXTENDIBLE DISTAL FEMORAL IMPLANT
MAK OSS FEMORAL KNEE COMPONENTS
GMK HINGE
DISTAL FEMORAL GROWING PROSTHESIS, TIBIAL ROTATING COMPONENTS, BEARING, AXIS, CIRCLIP, WEDGE
METS MODULAR DISTAL FEMUR
METS SMILES TOTAL KNEE REPLACEMENT
ZIMMER SEGMENT SYSTEM TRABECULAR METAL PROXIMAL TIBIAL COMPONENT, TRABECULAR METAL PROXIMAL COMPONENT, ADDITIONAL SEGMEN
JTS EXTENDEABLE IMPLANT
ENDURO KNEE SYSTEM
LPS UNIVERSAL TIBIAL HINGE INSERTS, MODEL 198727012-198727331
MAK OSS KNEE FEMORAL COMPONENTS
ORTHOPEDIC SALVAGE SYSTEM (OSS) 9CM COBALT - CHROME TIBIAL BODIES
LEGION HINGE KNEE SYSTEM
SEGMENTAL DISTAL FEMORAL COMPONENTS AND PROXIMAL FEMORAL BODIES WITH A COMPRESS FEMALE TAPER
REPIPHYSIS LIMB SALVAGE PROXIMAL FEMUR AND TOTAL FEMUR
ZIMMER SEGMENTAL SYSTEM
DEPUY LPS PROXIMAL TIBIAL COMPONENT
HOWMEDICA OSTEONICS MODULAR ROTATING HINGE KNEE WITH OFFSET ADAPTERS
OSS-BODIES PROXIMAL TIBIAL SLEEVE
ORTHOPEDIC SALVAGE SYSTEM- OSS
RS (REDUCED SIZE) OSS (ORTHOPEDIC SALVAGE SYSTEM) ADDITIONAL COMPONENTS
AVL HINGE KNEE SYSTEM
COMPRESS DISTAL FEMORAL REPLACEMENT SYSTEM
MODULAR REPLACEMENT SYSTEM CEMENTED STEMS

What is a Predicate Device?

A predicate device is a legally marketed device that a new 510(k) applicant uses to demonstrate substantial equivalence. The FDA's 510(k) pathway requires manufacturers to show that their device has the same intended use and similar technological characteristics as one or more predicate devices already cleared for commercial distribution.

Finding the right predicate is a critical step in 510(k) strategy. Manufacturers typically search for cleared devices with the same FDA product code, which groups devices by their intended use and regulatory classification. This tool helps you identify potential predicates by browsing all clearances within a product code.

Note that predicate devices must be legally marketed — they cannot be devices that were cleared but never commercialized, or devices subject to a mandatory recall. The determination of substantial equivalence considers intended use, technological characteristics, and performance data.

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