Cleared Traditional

K212941 - Porous Patella (FDA 510(k) Clearance)

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

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Jan 2022
Decision
127d
Days
Class 2
Risk

K212941 is an FDA 510(k) clearance for the Porous Patella. Classified as Prosthesis, Knee, Patello/femorotibial, Semi-constrained, Uncemented, Porous, Coated, Polymer/metal/polymer (product code MBH), Class II - Special Controls.

Submitted by Encore Medical, L.P. Dba Djo Surgical (Austin, US). The FDA issued a Cleared decision on January 20, 2022 after a review of 127 days - within the typical 510(k) review window.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3565 - 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. Standard predicate reliance. 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 Encore Medical, L.P. Dba Djo Surgical devices

Submission Details

510(k) Number K212941 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 15, 2021
Decision Date January 20, 2022
Days to Decision 127 days
Submission Type Traditional
Review Panel Orthopedic (OR)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
5d slower than avg
Panel avg: 122d · This submission: 127d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code MBH Prosthesis, Knee, Patello/femorotibial, Semi-constrained, Uncemented, Porous, Coated, Polymer/metal/polymer
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3565
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 - MBH Prosthesis, Knee, Patello/femorotibial, Semi-constrained, Uncemented, Porous, Coated, Polymer/metal/polymer

All 141
Devices cleared under the same product code (MBH) and FDA review panel - the closest regulatory comparables to K212941.
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K253239 · Signature Orthopaedics Pty, Ltd. · Dec 2025
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K252777 · Maxx Orthopedics, Inc. · Oct 2025