Medartis AG

MODUS 2 Plates, Screws and Instruments Instructions for Use

4 Pages

Instructions for Use for Medartis MODUS 2 Plates, Screws and Instruments Introduction These instructions for use are for a product line of Medartis AG, Hochbergerstrasse 60E, 4057 Basel/Switzerland Phone +41 61 633 34 34, Fax +41 61 633 34 00, www.medartis.com. All instructions provided in this document must be followed.  •  In consideration of patient’s clinical condition and medical history, the treating physician shall ensure that the use of MODUS2 implants can be justified based on a patient-specific benefit/risk assessment.  Warnings and Precautionary Measures • • •  Notes Regarding the Delivered Goods The individual parts of the system may only be accepted when the manufacturer’s label and packaging are undamaged and unopened at the time of delivery. If this is not the case, the rejected goods must be returned to Medartis AG, Basel/Switzerland or to the relevant Medartis Territory Consultant or distribution partner within ten working days. Implants are intended for single use only and are not designed to be reused. All components that are delivered NON-STERILE must be appropriately prepared before first use. All packaging must be removed before preparation.  •  •  Product Materials  •  All MODUS 2 implants are made of pure titanium (ASTM F67, ISO 5832-2) or titanium alloy (ASTM F136, ISO 5832-3). All of the titanium materials used are biocompatible, corrosionresistant and non-toxic in a biological environment. The instruments are made of stainless steel, PEEK, aluminum or titanium.  •  Color Coding Concept All MODUS 2 screws, associated drills and screwdriver blades are color coded.  •  Screw Diameter 1.2 1.5 1.8  Color Code Red Green Yellow  • •  2.0 2.3 2.5  Blue Brown Purple  •  Implants have an individual color: Implant plates gold Implant plates blue Implant plates silver Implant screws gold Implant screws green Implant screws silver  Rigid fixation plates Semi-rigid fixation plates TriLock plates (locking) Cortical screws (fixation) Lag screws SpeedTip screws (self-drilling) SpeedTip TriLock screws (self-drilling and locking) IMF SpeedTip screws (self-drilling) TriLock screws (locking)  Markings/Symbols and Their Meanings TriLock (locking)  HexaDrive  Self-drilling screws  Intended Use The MODUS 2 osteosynthesis systems are intended for oral and craniomaxillofacial surgery.  Indications MODUS 2 Midface is indicated for midfacial trauma repair, fixation of maxillary osteotomies and reconstructive procedures in the midface. MODUS 2 Orthognathics is indicated for maxillary (LeFort I, II and III) and mandibular (ramus and corpus) osteotomies and genioplasties as part of orthognathic surgery and for fixation of maxillary and mandibular traumas. MODUS 2 Mandible is indicated for mandibular trauma repair, fixation of mandibular osteotomies, reconstructive procedures and bridging of load-bearing bone segments in the mandible. MODUS 2 IMF is indicated for temporary perioperative fixation and/or stabilization of occlusion.  Contraindications • • • • • • •  Pre-existing or suspected infection at or near the implantation site. Known allergies and/or hypersensitivity to implant materials. Inferior or insufficient bone quality to securely anchor the implant. Patients who are incapacitated and/or uncooperative during the treatment phase. Blocking of cranial sutures/growth plates with plates and screws. Not intended for use in direct contact with the dura mater and the central nervous system. The IMF screws cannot be used in unstable fractures.  Complications in implant removal from improper explantation of the implant.  The products may only be used by medical personnel who hold relevant qualifications. Medartis, as manufacturer, recommends that the user reads all available documents before first use and contacts other users who have practical experience with this type of treatment. Compatibility information: MODUS 2 implants and instruments are not compatible with other MODUS systems in terms of color concept. All of the system components have been developed and manufactured for a specific purpose and are therefore precisely adapted to each other. The user may not alter any of the components or replace them with an instrument or product from another manufacturer even if the size or shape is similar or exactly corresponds to that of the original product. The use of materials from other manufacturers, structural changes resulting from the use of third-party products and/or material impurities, as well as minor deviations or imprecise fit between the implants and instruments, or similar, can represent a risk for the user, patient or third parties. Never use products that have been damaged by transport, improper handling in the hospital, or in any other way! All of the implant components are intended for single use and may not be reused under any circumstances. Necessary care must be observed for storage and use of the products: Damages (e.g. from improper cutting or bending) to and/or scratches on the instruments/implants can substantially impair the strength of the product and lead to premature breakage. Repeatedly bending the plate in opposite directions may cause the plate to break during postoperative treatment. The implant containers and instrument cases shall not be vigorously shaken or tipped over since the individual components may become damaged or fall out. Unless otherwise expressly stated on the label, the instruments can be reused. Twist drills: It is recommended not to exceed a maximum drilling speed of 1’000 revolutions per minute to avoid overheating the bone. Reusable, non-sterile packed twist drills and reamers may only be used for a maximum of ten times. Sterile packed twist drills and reamers are for single use only, and may not be reused under any circumstances. Use the indicated screwdriver for the respective screw size. Make sure that the screwdriver/screw head connection is precisely aligned in axial direction. If not, there is a greater risk of damage to the implant and screwdriver blade. When inserting the screw, ensure that a sufficient axial force is used between blade and screw. At the same time, the axial force should be in certain limits in order not to damage the bone structure.  Information on MR-Marking  Conditionally MR safe Non-clinical tests under worst case conditions show that all Medartis implants are MR conditional. Magnetically Induced Torque and Displacement According to ASTM F2213-06 and ASTM F2052-06e1: Non-clinical tests under worst case conditions in a 3 T MRI system did not reveal any relevant torque or displacement of the construct for a maximum spatial gradient of 12 T/m. Image Artifacts According to ASTM F2119-07: The largest image artifact extended approximately 29 mm from the construct when imaged with a gradient echo pulse sequence and a 1.5 T MRI system. Radio-Frequency-induced Heating According to ASTM F2182-11a: Electromagnetic and thermal simulations combined with non-clinical tests demonstrated maximum temperature rises of 13.1°C (1.5 T) and 4.2°C (3 T) after 15 minutes of continuous scanning (Normal Operating Mode, whole body specific absorption rate (SAR) of 2.1 W/kg) Since the above test results were obtained through non-clinical testing, the actual in vivo temperature increase will depend on a variety of factors beyond the SAR and scan duration. Therefore, note the following: • Do not scan patients with impaired thermo regulation, temperature or pain sensation. • Reduce the SAR as much as possible as reducing the SAR strongly reduces the temperature increase caused by RF heating. • Use an external cooling/ventilation system to help reduce the body temperature.  Multidirectional, Angular Stable TriLock Locking System Correct locking (±15°) of the TriLock screws in the plate Visual inspection of the screw head projection provides an indicator of correct locking. Correct locking has occurred only when the screw head has locked flush with the plate contour (Fig. 1 and 3). However, if there is still a noticeable protrusion (Fig. 2 and 4), the screw head has not completely entered the plate and reached the locking position. In this case the screw has to be retightened to obtain full penetration and proper locking. In case of poor bone quality a slight axial pressure might be necessary to achieve proper locking. Due to the system characteristics, a screw head protrusion of around 0.2 mm exists when using plates with 1.0 mm thickness. Do not overtighten the screw, otherwise the locking function cannot be guaranteed anymore. Correct: LOCKED  Incorrect: UNLOCKED  Fig. 1  Fig. 2  Possible Complications In most cases, potential complications have a clinical source as opposed to arising from the implants/instruments. These include among other things: • Loosening of the implant from insufficient fixation. • Hypersensitivity to metal or allergic reactions. • Bone necrosis, osteoporosis, insufficient revascularization, bone resorption and poor bone formation that can cause premature loss of fixation. • Soft tissue irritation and/or nerve damage through surgical trauma. • Early or late infection, both superficial and deep. • Elevated fibrotic tissue reaction around the surgical area.  MODUS 2-00000101_Rev. C.2020/03/09 Instructions for Use for Medartis MODUS Plates, Screws and Instruments Medartis, APTUS, MODUS, TriLock, HexaDrive and SpeedTip are registered trademarks of Medartis AG/Medartis Holding AG, 4057 Basel/Switzerland  1 of 4
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