Cleared Traditional

K923011 - OSTEONICS UNIX UNICOMPARTMENTAL (FDA 510(k) Clearance)

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

K923011 · Osteonics Corp. · Orthopedic device
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Nov 1993
Decision
526d
Days
Class 2
Risk

K923011 is an FDA 510(k) clearance for the OSTEONICS UNIX UNICOMPARTMENTAL. Classified as Prosthesis, Knee, Femorotibial, Semi-constrained, Cemented, Metal/polymer (product code HRY), Class II - Special Controls.

Submitted by Osteonics Corp. (Allendale, US). The FDA issued a Cleared decision on November 30, 1993 after a review of 526 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3530 - 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: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind Orthopedic submissions.

View all Osteonics Corp. devices

Submission Details

510(k) Number K923011 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 22, 1992
Decision Date November 30, 1993
Days to Decision 526 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
404d slower than avg
Panel avg: 122d · This submission: 526d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code HRY Prosthesis, Knee, Femorotibial, Semi-constrained, Cemented, Metal/polymer
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3530
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.