Cleared Traditional

K221323 - Exactech® Alteon® Short Tapered Wedge (FDA 510(k) Clearance)

Class II Orthopedic device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

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May 2023
Decision
378d
Days
Class 2
Risk

K221323 is an FDA 510(k) clearance for the Exactech® Alteon® Short Tapered Wedge. Classified as Prosthesis, Hip, Semi-constrained, Metal/ceramic/polymer, Cemented Or Non-porous, Uncemented (product code LZO), Class II - Special Controls.

Submitted by Exactech, Inc. (Gainesville, US). The FDA issued a Cleared decision on May 19, 2023 after a review of 378 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3353 - the FDA orthopedic device regulatory framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Elevated predicate reliance profile. This clearance follows a standard predicate-based equivalence path within the Orthopedic review framework, consistent with the majority of Class II 510(k) submissions.

View all Exactech, Inc. devices

Submission Details

510(k) Number K221323 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 06, 2022
Decision Date May 19, 2023
Days to Decision 378 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
256d slower than avg
Panel avg: 122d · This submission: 378d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LZO Prosthesis, Hip, Semi-constrained, Metal/ceramic/polymer, Cemented Or Non-porous, Uncemented
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3353
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Orthopedic devices follow this clearance model.

Regulatory Peers - LZO Prosthesis, Hip, Semi-constrained, Metal/ceramic/polymer, Cemented Or Non-porous, Uncemented

All 528
Devices cleared under the same product code (LZO) and FDA review panel - the closest regulatory comparables to K221323.
Avenir® Müller Stem
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implaFit® short stems
K252401 · Implantcast GmbH · Mar 2026
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K253171 · Maxx Orthopedics, Inc. · Jan 2026
Coated hip implants
K250450 · Medacta International S.A. · Sep 2025
Longboard Revision Hip Stem
K243021 · Signature Orthopaedics Pty, Ltd. · Aug 2025
Z1 Hip System
K251906 · Zimmer, Inc. · Jul 2025