Cleared Traditional

K233574 - Total Wrist Arthroplasty System (TWA) (FDA 510(k) Clearance)

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

K233574 · Skeletal Dynamics · Orthopedic device
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Jul 2024
Decision
239d
Days
Class 2
Risk

K233574 is an FDA 510(k) clearance for the Total Wrist Arthroplasty System (TWA). Classified as Prosthesis, Wrist, 3 Part Metal-plastic-metal Articulation, Semi-constrained (product code JWJ), Class II - Special Controls.

Submitted by Skeletal Dynamics (Miami, US). The FDA issued a Cleared decision on July 3, 2024 after a review of 239 days - an extended review cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3800 - 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.

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Submission Details

510(k) Number K233574 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 07, 2023
Decision Date July 03, 2024
Days to Decision 239 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
117d slower than avg
Panel avg: 122d · This submission: 239d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JWJ Prosthesis, Wrist, 3 Part Metal-plastic-metal Articulation, Semi-constrained
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3800
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.