Cleared Traditional

K223548 - GMK Sphere & GMK SpheriKA Cementless (FDA 510(k) Clearance)

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

K223548 · Medacta International S.A. · Orthopedic device
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Jan 2023
Decision
56d
Days
Class 2
Risk

K223548 is an FDA 510(k) clearance for the GMK Sphere & GMK SpheriKA Cementless. Classified as Prosthesis, Knee, Patello/femorotibial, Semi-constrained, Uncemented, Porous, Coated, Polymer/metal/polymer (product code MBH), Class II - Special Controls.

Submitted by Medacta International S.A. (Castel San Pietro (Ch), CH). The FDA issued a Cleared decision on January 20, 2023 after a review of 56 days - a notably fast clearance cycle.

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: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Medacta International S.A. devices

Submission Details

510(k) Number K223548 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 25, 2022
Decision Date January 20, 2023
Days to Decision 56 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
66d faster than avg
Panel avg: 122d · This submission: 56d
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 Consultant

Medacta USA
Chris Lussier

The regulatory consultant manages the 510(k) submission process on behalf of the applicant - coordinating technical documentation, predicate strategy and FDA communications. Identifying the consultant behind a submission is a key signal for competitive regulatory intelligence.

Regulatory Peers - MBH Prosthesis, Knee, Patello/femorotibial, Semi-constrained, Uncemented, Porous, Coated, Polymer/metal/polymer

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