Cleared Special

K042673 - ZODIAC POLYAXIAL SPINAL FIXATION SYSTEM (FDA 510(k) Clearance)

Class II Orthopedic device cleared through the Special 510(k) pathway - typically does not require clinical trials.

K042673 · Alphatec/Nexmed · Orthopedic device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Oct 2004
Decision
28d
Days
Class 2
Risk

K042673 is an FDA 510(k) clearance for the ZODIAC POLYAXIAL SPINAL FIXATION SYSTEM. Classified as Appliance, Fixation, Spinal Interlaminal (product code KWP), Class II - Special Controls.

Submitted by Alphatec/Nexmed (Carlsbad, US). The FDA issued a Cleared decision on October 27, 2004 after a review of 28 days - a notably fast clearance cycle.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3050 - the FDA orthopedic device regulatory framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.

Device pattern: Iterative device modification. Low regulatory complexity profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.

View all Alphatec/Nexmed devices

Submission Details

510(k) Number K042673 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 29, 2004
Decision Date October 27, 2004
Days to Decision 28 days
Submission Type Special
Review Panel Orthopedic (OR)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
94d faster than avg
Panel avg: 122d · This submission: 28d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code KWP Appliance, Fixation, Spinal Interlaminal
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3050
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.