K252303 is an FDA 510(k) clearance for the Stem Extension Line (USTAR II System). This device is classified as a Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/polymer (Class II - Special Controls, product code KRO).
Submitted by United Orthopedic Corporation (Kaohsiung, TW). The FDA issued a Cleared decision on August 22, 2025, 29 days after receiving the submission on July 24, 2025.
This device falls under the Orthopedic FDA review panel. Regulated under 21 CFR 888.3510.
| 510(k) Number | K252303 FDA.gov |
| FDA Decision | Cleared Substantially Equivalent - Traditional 510(k) (SESE) |
| Date Received | July 24, 2025 |
| Decision Date | August 22, 2025 |
| Days to Decision | 29 days |
| Submission Type | Special |
| Review Panel | Orthopedic (OR) |
| Summary | Summary PDF |
| Product Code | KRO — Prosthesis, Knee, Femorotibial, Constrained, Cemented, Metal/polymer |
| Device Class | Class II - Special Controls |
| CFR Regulation | 21 CFR 888.3510 |