Cleared Traditional

K233951 - CD Horizon ModuLeX Spinal System (Shanks, Head Assemblies, and Set Screw) (FDA 510(k) Clearance)

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

K233951 · Medtronic Sofamor Danek USA, Inc. · Orthopedic device
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Optimized for regulatory review, auditing and printing
Mar 2024
Decision
103d
Days
Class 2
Risk

K233951 is an FDA 510(k) clearance for the CD Horizon ModuLeX Spinal System (Shanks, Head Assemblies, and Set Screw). Classified as Thoracolumbosacral Pedicle Screw System within the NKB classification (a category for thoracolumbosacral pedicle screw systems), Class II - Special Controls.

Submitted by Medtronic Sofamor Danek USA, Inc. (Memphis, US). The FDA issued a Cleared decision on March 27, 2024 after a review of 103 days - within the typical 510(k) review window.

This device falls under the Orthopedic FDA review panel, regulated under 21 CFR 888.3070 - 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 Medtronic Sofamor Danek USA, Inc. devices

Submission Details

510(k) Number K233951 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 15, 2023
Decision Date March 27, 2024
Days to Decision 103 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
19d faster than avg
Panel avg: 122d · This submission: 103d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code NKB Thoracolumbosacral Pedicle Screw System
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.3070
Definition Intended To Provide Immobilization And Stabilization Of Spinal Segments In Thoracic, Lumbar, And Sacral Spine As An Adjunct To Fusion.
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 - NKB Thoracolumbosacral Pedicle Screw System

All 895
Devices cleared under the same product code (NKB) and FDA review panel - the closest regulatory comparables to K233951.
PERLA® TL Posterior Thoraco-lumbar Fixation System
K253966 · Spineart SA · May 2026
LEO Spinal System
K252542 · ZheJiang Decans Medical Devices Co., Ltd. · Apr 2026
M.U.S.T. Pedicle Screw System - Extension
K253940 · Medacta International S.A. · Apr 2026
CD Horizon™ ModuLeX™ Fenestrated Screw Set
K260216 · Medtronic Sofamor Danek USA, Inc. · Apr 2026
ARx® SAI Implant System
K254274 · Life Spine, Inc. · Apr 2026
KHEIRON® Spinal Fixation System, including patient specific K-ROD
K260786 · S.M.A.I.O · Apr 2026