University:
Michigan State University
Course:
MED 492 | Basics and Methods in Biomedical Research
Academic year:

2021
Views:

421

Pages:

2
Author:

Leilani Contreras

System Highlights The Femoral Neck System (FNS) is a dedicated product for the ﬁxation of femoral neck fractures and offers the following features and beneﬁts: Bolt • Provides angular stability (ﬁxed angle between Bolt and Plate)3 • Dynamic design with up to 20 mm of controlled collapse, without lateral protrusion for the ﬁrst 15 mm5 Antirotation-Screw (ARScrew) • Provides rotational stability (diverging design between ARScrew and Bolt) 4 • Allows implant placement even in a small femoral neck5 Product Offering • Material: TAN (Ti-6Al-7Nb) • Construct Sizes: 75 mm to 130 mm (5 mm increments) • 1-hole plate with 130° angle (2-hole plate optionally available) Sterile Packaging • Implant Kit packaging – Plate, Bolt and ARScrew packaged in one kit – Reduced storage space – Reduced packaging waste • Also available in single packaging Stoffel K, Zderic I, Gras F, Sommer C, Eberli U, Mueller D, Oswald M, Gueorguiev B. Biomechanical evaluation of the femoral neck system in unstable Pauwels III femoral neck fractures: a comparison with the dynamic hip screw and cannulated screws. J Orthop Trauma. 2017; 31(3): 131–137.* 4 DePuy Synthes Report: Static Cut Through Rotation Test in Bone Foam. 2016. Ref: 0000165855.* 5 DePuy Synthes Report: FNS Design and Procedure Comparison. 2018. Ref: 0000274963. 3 * Benchtop testing may not be indicative of clinical performance. 4 Plate (with Locking Screw) • Provides angular stability (ﬁxed angle between Bolt and Plate)3 • Accommodates standard 5.0 mm Locking Screws • Reduces the implant footprint on the bone, comparable to three cannulated screws5 DePuy Synthes Femoral Neck System (FNS) Surgical Technique Surgical Step Etchings • The main instruments are etched with letters and arrows to facilitate the surgical procedure • Corresponding letters are highlighted in this surgical technique Protection Sleeve • Used to insert Locking Screws • Helps to protect soft tissue Insertion Handle • Serves as handle for entire system • Used to insert Plate and Bolt • Allows to guide additional wires Insert for Insertion Handle • Serves as guide to insert the ARScrew • Allows intra-operative compression (in combination with the Multifunction Rod) 5