“United” Ustar II Knee System

The USTAR II tibial augment is a modular knee reconstruction component used when a patient has more bone resection. It works with the system's femoral component, tibial baseplate, and…

Registry build 21.09.26

The USTAR II tibial augment is a modular knee reconstruction component used when a patient has more bone resection. It works with the system’s femoral component, tibial baseplate, and tibial insert as part of a reconstructed knee prosthesis.

The broader system addresses substantial bone loss and deformity, including after failed joint replacement, tumor resection, or trauma. The augment adds a component option to the knee assembly for cases requiring additional reconstruction.

Listed Item

Tibial augment, #1, 15mm, right medial/left lateral

Modular Reconstruction

USTAR II Knee System components are combined modularly, and the tibial augment, segment, and stem are offered for patients with more bone resection.

7manufacturers in China registered for this device type
162catalogue numbers in this listing
2510(k) clearances naming this product code
4recalls on this code

Who Else Makes It

Concentrated in Jiangsu (3), Shanghai (2), Zhejiang (2). 4 of them are registered as contract manufacturers, able to build to a buyer’s own specification.

Chinese manufacturers registered for FDA product code KRO
Manufacturer City Province Registered as Device types
Zhejiang Biomet Medical Products Co., Ltd. Jinhua Zhejiang Contract manufacturer 74
Paragon Medical Device (Changzhou) Co., Ltd. Changzhou Jiangsu Contract manufacturer 53
Canwell Medical Co., Ltd. Jinhua Zhejiang Contract manufacturer 42
Suzhou Elite Precision Machinery Co., Ltd. Kunshan Jiangsu Contract manufacturer 35
Zimmer (Shanghai) Medical International Trading Co., Ltd. Shanghai Shanghai Exporter 106
Shanghai JPY ION-Tech Co., Ltd. Shanghai Shanghai Contract manufacturer 70
Changzhou Biomet Medical Devices Co., Ltd. Changzhou Jiangsu Contract manufacturer 54

Record

Regulatory record for “united” Ustar II Knee System
Listed by United Orthopedic Corp., Taiwan
FDA product code KRO
Device type Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/Polymer
Device class Class 2
Regulation 21 CFR 888.3510
Establishment Contract manufacturer, Manufacturer, Exporter
510(k) K190100
Record published 2020-02-24

Specifications

Specifications
MRI safety Labeling does not contain MRI Safety Information
Supplied sterile Yes
Single use Yes
Prescription Prescription only
Label carries lot or batch number, expiry date

Catalogue Numbers

Catalogue numbers for “united” Ustar II Knee System
Catalogue number Size Status
2715-3115 In distribution
2815-1213 In distribution
2515-3119 In distribution
2815-1143 In distribution
2815-1163 In distribution
2715-3119 In distribution
2115-1330 In distribution
2715-1213 In distribution
2915-1150 In distribution
2115-3400 In distribution
2715-1215 In distribution
2315-1211 In distribution
2715-7314 In distribution
2315-1241 In distribution
2515-3013 In distribution
2515-3209 In distribution
2515-3415 In distribution
2715-5309 In distribution
2815-1011 In distribution
2315-3242 In distribution
2815-1123 In distribution
2715-3113 In distribution
2915-1200 In distribution
2715-3009 In distribution
2515-3019 In distribution
2715-7212 In distribution
2515-3411 In distribution
2915-1180 In distribution
2715-1211 In distribution
2915-1040 In distribution
2715-3111 In distribution
2515-1111 In distribution
2315-3241 In distribution
2515-3009 In distribution
2515-1117 In distribution
2515-1011 In distribution
2915-1170 In distribution
2315-1201 In distribution
2915-1140 In distribution
2815-1022 In distribution
2715-3209 In distribution
2515-1415 In distribution
2815-1233 In distribution
2815-1253 In distribution
2815-1061 In distribution
2715-3011 In distribution
2315-3201 In distribution
2915-1220 In distribution
2715-1017 In distribution
2515-1211 In distribution
2815-1263 In distribution
2315-3243 In distribution
2815-1031 In distribution
2715-1117 In distribution
2915-1190 In distribution
2515-1411 In distribution
2315-3244 In distribution
2815-1153 In distribution
2515-1215 In distribution
2715-3109 In distribution
2715-3013 In distribution
2715-3217 In distribution
2715-1109 In distribution
2715-1009 In distribution
2515-1013 In distribution
2115-1360 In distribution
2315-1212 In distribution
2115-1310 In distribution
2915-1070 In distribution
2315-1216 In distribution
2515-1015 In distribution
2115-1320 In distribution
2815-1243 In distribution
2115-3300 In distribution
2515-1209 In distribution
2915-1080 In distribution
2715-1011 In distribution
2315-3247 In distribution
2315-1213 In distribution
2515-3109 In distribution
2815-1223 In distribution
2715-3015 In distribution
2515-1413 In distribution
2715-3117 In distribution
2315-3246 In distribution
2715-1115 In distribution
2315-1246 In distribution
2515-1217 In distribution
2715-1209 In distribution
2915-1060 In distribution
2315-1217 In distribution
2815-1012 In distribution
2515-3217 In distribution
2715-5209 In distribution
2815-1021 In distribution
2515-1019 In distribution
2715-1015 In distribution
2515-3017 In distribution
2815-1032 In distribution
2515-3015 In distribution
2715-3211 In distribution
2515-3413 In distribution
2815-1051 In distribution
2715-3213 In distribution
2715-3215 In distribution
2515-3011 In distribution
2515-1113 In distribution
2315-1247 In distribution
2515-3117 In distribution
2915-1110 In distribution
2515-1109 In distribution
2115-1460 In distribution
2815-1041 In distribution
2115-1450 In distribution
2915-1160 In distribution
2915-1210 In distribution
2815-1113 In distribution
2915-1025 In distribution
2115-1420 In distribution
2115-1350 In distribution
2715-7312 In distribution
2315-1244 In distribution
2815-1042 In distribution
2715-3019 In distribution
2715-5109 In distribution
2315-1245 In distribution
2715-1013 In distribution
2515-1009 In distribution
2915-1120 In distribution
2515-1017 In distribution
2915-1030 In distribution
2715-1113 In distribution
2715-1111 In distribution
2915-1130 In distribution
2815-1062 In distribution
2915-1100 In distribution
2115-1300 In distribution
2115-1440 In distribution
2815-1052 In distribution
2815-1133 In distribution
2715-3017 In distribution
2515-1115 In distribution
2715-1019 In distribution
2315-1214 In distribution
2115-1340 In distribution
2115-3410 In distribution
2915-1050 In distribution
2515-1213 In distribution
2115-1410 In distribution
2315-3245 In distribution
2915-1090 In distribution
2515-1119 In distribution
2715-1119 In distribution
2715-7214 In distribution
2315-1215 In distribution
2915-3080 In distribution
2715-5609 In distribution
2315-1243 In distribution
2315-1242 In distribution
2715-1217 In distribution
2115-1430 In distribution
2115-1400 In distribution

Same Product Code

Other products under the same FDA product code
Product Sold by Catalogue numbers
Link Endo-Model EVO Knee System Waldemar Link GmbH & Co. KG 324
Endo-Model Modular Knee Prosthesis System Waldemar Link GmbH & Co. KG 291
LinkSymphoKnee Waldemar Link GmbH & Co. KG 263
Evolution Microport Orthopedics Inc. 223
Legion Smith & Nephew, Inc. 222
OSS™ Orthopedic Salvage System Biomet Orthopedics 211
Ustar II Knee System United Orthopedic Corp. 185
Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/Polymer Zimmer, Inc. 157
Finn Knee System Biomet Orthopedics 138
NexGen Zimmer, Inc. 119
Triathlon Howmedica Osteonics Corp 106
Endo-Model SL Knee Prosthesis System Waldemar Link GmbH & Co. KG 94

Showing 12 of 109. All products under Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/Polymer

510(K) Clearances

FDA 510(k) clearances naming this product code
Clearance Decision date
K252303 2025-08-22
K190100 2019-09-23

Recalls Naming This Product

5 recalls name this product by its own identifiers, the 510(k) it is cleared under.

Recalls naming the identifiers of “united” Ustar II Knee System
Recalled by Identified by Initiated FDA class Root cause Reason Quantity Closed
United Orthopedic Corp. 510(k) number 2026-05-20 Class II Process design Due to an incomplete process of the component screw by a subcontractor which prevents the properly assembling of stem trail. 2
United Orthopedic Corp. 510(k) number 2024-01-03 Class II Nonconforming Material/Component Their is a potential that the implant curved stem may be oriented incorrectly. 598 units
United Orthopedic Corp. 510(k) number 2024-01-03 Class II Nonconforming Material/Component Their is a potential that the implant curved stem may be oriented incorrectly. 479 units
United Orthopedic Corp. 510(k) number 2024-01-03 Class II Nonconforming Material/Component Their is a potential that the implant curved stem may be oriented incorrectly.
UOC USA Inc. 510(k) number 2021-08-27 Class II Device Design Due to product not meeting specification for concentricity and failing to meet requirements of dynamic fatigue testing. 3 devices 2023-01-20

Source: U.S. FDA establishment registration and device listing records, public domain. Restructured for clarity and searchability. Not affiliated with or endorsed by the FDA. Records are records: nothing here is an offer of sale.

Where China Actually Supplies

Every device page names the company that lists it and the factories registered to make the same thing. These are the sections with the most of them.

5,100manufacturers registered in China
2,581device types they are registered for
340,248device records, each naming its maker
31provinces with a registered manufacturer