FEMORAL NECK SYSTEMDedicated Fixation for Femoral Neck Fractures

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The Femoral Neck System (FNS) is engineered specifically for femoral neck fractures, with improved stability intended to reduce re-operations related to fixation complications.Refer to the following pages for more details.

Enhanced Fixation in a Compact DesignDesigned to provide increased angular and rotational stability with an implant geometry minimizing prominence.1,2,3

Streamlined ProcedureDesigned for reduced procedural complexity utilizing a technique and insertion handle requiring only a single, central guide wire.3

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Enhanced Fixation...Designed to provide both angular and rotational stability in a single implant intended to reduce reoperations related to fixation complications.1,2

A published biomechanical study shows that FNS is twice as strong as three cannulated screws (3CS) against femoral neck and leg shortening. The same study also revealed comparable results to two types of sliding hip screws.1

Regardless of construct size, FNS offers enhanced rotational stability. Mechanical testing indicates up to 40% increased rotational stability when comparing to a sliding hip screw (SHS).2

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FNS SHS15mm leg shortening 15mm neck shortening

Resistance to Varus Collapse

Integrated Rotational Stability

130mm Construct 75mm ConstructBenchtop test results may not be indicative of clinical performance. Three cannulated screws tested were DePuy Synthes Cannulated Screws. The sliding hip screws tested were DePuy Synthes DHS Screw with anti-rotation screws and a DHS Blade (both types in angular stability study and the DHS Blade only in the rotational stability study).

2xTHAN THREE CANNULATED SCREWS

T W O T I M E SSTRONGER 40MORE ROTATIONAL STABILITY

THAN A SLIDING HIP SCREW

+40%U PT O

Implant insertion is achieved using one central guide wire and with the help of one main instrument assembly, reducing intraoperative handling.3

Surgical Steps1. Target 2. Measure 3. Ream 4. Insert

Streamlined ProcedureDesigned for a simplified technique using a single, central guide wire and targeted insertion handle while minimizing loss of reduction during insertion.3

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...In a Compact DesignDesigned with a small footprint to reduce lateral prominence, a dynamic Bolt and ARScrew to eliminate lateral protrusion of the implant, and a short incision to reduce soft tissue disruption.3

Sliding Hip Screw Cannulated ScrewsFNS

Due to the minimized size of the implant, FNS allows for easy insertion – even through a small incision.3

1CENTRAL GUIDE WIRE

MEASUREMENT

MAIN INSTRUMENTFOR IMPLANT INSERTION

ONE

Reduced Incision Size

Single, Central Guide Wire

The implant footprint on the bone is as small as three cannulated screws.3

Minimized Implant Footprint

Guided Implant Placement1. Insertion Handle

• Used for initial insertion of Bolt and Plate

• Serves as targeting device for ARScrew and Locking Screw(s)

• Guides additional wires

2. Insert• Guides insertion of ARScrew

• Allows for up to 20mm of intra- operative compression

3. Protective Sleeve• Guides insertion of Locking Screw(s)

• Helps to protect soft tissue

The implant design is intended to eliminate lateral protrusion, with up to 20mm of guided collapse.

No Lateral Protrusion

© DePuy Sythes Trauma, a division of Synthes GmbH. 2018. All rights reserved. DSEM/TRM/0517/0861 5/18

Not all products are currently available in all markets.

This publication is not intended for distribution in the USA.

For indications and contraindications as well as warnings, precautions and adverse events, please consult the Femoral Neck System Surgical Technique DSEM/TRM/0614/0098.

All surgical techniques are available as PDF files at http://www.depuysynthes.com/ifu

References1. Stoffel K, Zderic I, Gras F, et al. Biomechanical Evaluation of the Femoral Neck System in Unstable Pauwels III

Femoral Neck Fractures: A Comparison with the Dynamic Hip Screw and Cannulated Screws Orthop Trauma. 2017. (31): 131-137.

2. DePuy Synthes Report: Static cut through rotation test in bone foam. 2016. Ref: 0000165855.3. DePuy Synthes Report: FNS Design and Procedure Comparison. 2018. Ref: 0000274963.

Construct OverviewMaterial • Ti-6AI-7Nb (TAN)

Construct Sizes • 75mm to 130mm

(5mm increments)

Plates • 1-Hole• 2-Hole Optionally

Available• CCD Angle: 130º

Packaging Sterile Only:• Implant kit with

1-Hole Plate• Individual implant

packaging

The implant kit packaging provides potential for further procedural efficiencies (one-time size selection and unpacking).

1. Bolt• Cylindrical design intended to

maintain reduction during insertion

• Provides angular stability1

• Guided collapse designed to reduce lateral protrusion (Bolt and ARScrew slide together max. 20mm)

2. Antirotation-Screw (ARScrew)• Provides rotational stability2

• Allows implant placement even in a small femoral neck

3. Plate• Provides angular stability1

• Designed to provide a minimized implant footprint3

• Accommodates standard 5.0mm Locking Screw