Medtronic X4802421 Instructions for Use

VENTURE™ Anterior Cervical Plate
M708348B446E Rev. B
System
2017-06-27
IMPORTANT INFORMATION ON THE VENTURE™ ANTERIOR CERVICAL PLATE SYSTEM
PURPOSE
The VENTURE™ Anterior Cervical Plate System components are temporary implants intended for anterior interbody screw fixation of the cervical spine during the development of a cervical spinal fusion. The implantation of the VENTURE™ Anterior Cervical Plate System is via an anterior surgical approach.
DESCRIPTION
The VENTURE™ Anterior Cervical Plate System consists of a variety of bone plates and screws. Fixation is provided by the insertion of bone screws through the openings at each end of the plate into the vertebral bodies of the cervical spine. Associated instruments are also available to facilitate the implantation of the device.
The VENTURE™ Anterior Cervical Plate System implant components are made from titanium alloy, with certain subcomponents manufactured from shape memory alloys (Nitinol – NiTi). These materials are not compatible with other metal alloys. Do not use any of the VENTURE™ Anterior Cervical Plate System components with the components from any other system or manufacturer. No warranties, express or implied, are made. Implied warranties of merchantability and fitness for a particular purpose or use are specifically excluded.
INDICATIONS
Properly used, this system is intended for anterior interbody screw fixation of the cervical spine. The indications and contraindications of spinal instrumentation systems should be well understood by the surgeon. The system is indicated for use in the temporary stabilization of the anterior spine during the development of cervical spinal fusions in patients with: 1) degenerative disc disease (DDD - as defined by neck pain of discogenic origin with degeneration of the disc confirmed by patient history and radiographic studies), 2) trauma (including fractures), 3) tumors, 4) deformity (defined as kyphosis, lordosis, or scoliosis), 5) pseudarthrosis, and/or 6) failed previous fusions.
Nota bene: this device system is intended for anterior cervical intervertebral body fusions only.
WARNINGS
This device is not approved for screw attachment to the posterior elements (pedicles) of the cervical, thoracic, or lumbar spine. Do not re-use or re-process devices labeled as single use devices. Re-use or re-processing of a single use devices may
compromise the structural integrity and the intended function of the device and/or create a risk of contamination of the device, which could result in patient injury, illness, or death.
CONTRAINDICATIONS
Contraindications include:
Infection local to the operative site.Signs of local inflammation.Fever or leukocytosis.Morbid obesity.Pregnancy.Mental illness.Any medical or surgical condition which would preclude the potential benefit of spinal implant surgery, such as the elevation
of sedimentation rate unexplained by other diseases, elevation of white blood count (WBC), or a marked left shift in the WBC differential count.
Rapid joint disease, bone absorption, osteopenia, and/or osteoporosis. Osteoporosis is a relative contraindication since this
condition may limit the degree of obtainable correction, the amount of mechanical fixation, and/or the quality of the bone graft.
Suspected or documented metal allergy or intolerance.Any case not needing a bone graft and fusion or where fracture healing is not required.
Any case requiring the mixing of metals from different components.Any patient having inadequate tissue coverage over the operative site or where there is inadequate bone stock, bone
quality, or anatomical definition.
Any case not described in the indications.Any patient unwilling to cooperate with the post-operative instructions.Anytime implant utilization would interfere with anatomical structures or expected physiological performance.
POTENTIAL ADVERSE EVENTS
All of the possible adverse events associated with spinal fusion surgery without instrumentation are possible. With instrumentation, a listing of possible adverse events includes:
Early or late loosening of any or all of the components.Disassembly, bending, and/or breakage of any or all of the components.Foreign body (allergic) reaction to implants, debris, corrosion products, and/or graft material including metallosis, staining,
tumor formation, and/or auto-immune disease.
Pressure on the skin from component parts in patients with inadequate tissue coverage over the implant possibly causing
skin penetration, irritation, and/or pain.
Bursitis.Tissue damage caused by improper positioning and placement of implants or instruments.Post-operative change in spinal curvature, loss of correction, height, and/or reduction.Infection.Dural tears.Loss of neurological function, including paralysis (complete or incomplete), dysesthesias, hyperesthesia, anesthesia,
paraesthesia, appearance of radiculopathy, and/or the development or continuation of pain, numbness, neuroma, or tingling sensation.
Neuropathy, neurological deficits (transient or permanent), bilateral paraplegia, reflex deficits, and/or arachnoiditis.Loss of bowel and/or bladder control or other types of urological system compromise.Scar formation possibly causing neurological compromise around nerves and/or pain.Fracture, microfracture, resorption, damage, or penetration of any spinal bone and/or bone graft or bone graft harvest site
at, above, and/or below the level of surgery.
Interference with roentgenographic, CT, and/or MR imaging because of the presence of the implants.Non-union (or pseudarthrosis), delayed union, and/or mal-union.Cessation of any potential growth of the operated portion of the spine.Loss of spinal mobility or function.Inability to perform the activities of daily living.Bone loss or decrease in bone density, possibly caused by stress shielding.Graft donor site complications including pain, fracture, or wound healing problems.Atelectasis, ileus, gastritis, herniated nucleus pulposus, and/or retropulsed graft.Hemorrhage, hematoma, seroma, embolism, edema, stroke, excessive bleeding, phlebitis, wound necrosis, wound
dehiscence, or damage to blood vessels.
Gastrointestinal and/or reproductive system compromise, including sterility and loss of consortium.Development of respiratory problems (e.g. pulmonary embolism, bronchitis, pneumonia, etc.).Change in mental status.Death.
Note: additional surgery may be necessary to correct some of these anticipated adverse events.
WARNINGS AND PRECAUTIONS
A successful result is not always achieved in every surgical case. This fact is especially true in spinal surgery where many extenuating circumstances may compromise the results. The VENTURE™ Anterior Cervical Plate System is only a temporary implant used for the correction and stabilization of the spine. This system is also intended to be used to augment the development of a spinal fusion by providing temporary stabilization. This device system is not intended to be the sole means of spinal support. Bone grafting must be part of the spinal fusion procedure in which the VENTURE™ Anterior Cervical Plate System is utilized. Use of this product without a bone graft or in cases that develop into a non-union will not be successful. This spinal implant cannot withstand body loads without the support of bone. In this event, bending, loosening, disassembly, and/or breakage of the device(s) will eventually occur. Preoperative planning and operating procedures, including knowledge of surgical techniques, proper reduction, and proper selection and placement of the implant are important considerations in the successful utilization of the VENTURE™ Anterior Cervical Plate by the surgeon. Further, the proper selection and compliance of the patient will greatly affect the results. Patients who smoke have been shown to have an increased incidence of non-unions. These patients should be advised of this fact and warned of this consequence. Obese, malnourished, and/or alcohol and/or other drug abuse patients are also not good candidates for spine fusion. Patients with poor muscle and bone quality and/or nerve paralysis are also not good candidates for spine fusion. The implants are not prostheses.
Physician note: although the physician is the learned intermediary between the company and the patient, the important medical information given in this document should be conveyed to the patient.
For US audiences only
Caution: Federal law (USA) restricts these devices to sale by or on the order of a physician.
IMPLANT SELECTION
The selection of the proper size, shape, and design of the implant for each patient is crucial to the success of the procedure. Metallic surgical implants are subject to repeated stresses in use, and their strength is limited by the need to adapt the design to the size and shape of human bones. Unless great care is taken in patient selection, proper placement of the implant, and postoperative management to minimize stresses on the implant, such stresses may cause metal fatigue and consequent breakage, bending, or loosening of the device before the healing process is complete, which may result in further injury or the need to remove the device prematurely.
PREOPERATIVE
Only patients that meet the criteria described in the indications should be selected.Patient conditions and/or predispositions such as those addressed in the aforementioned contraindications should be
avoided.
Care should be used in the handling and storage of the implant components. The implants should not be scratched or
otherwise damaged. Implants and instruments should be protected during storage, especially from corrosive environments.
The type of construct to be assembled for the case should be determined before surgery. An adequate inventory of implant
sizes should be available at the time of surgery, including sizes larger and smaller than those expected to be used.
Since mechanical parts are involved, the surgeon should be familiar with the various components before using the
equipment and should personally assemble the devices to verify all parts and necessary instruments are present before surgery. The VENTURE™ Anterior Cervical Plate System components are not to be combined with the components from another manufacturer. Different metal types should not be used together.
Unless sterile packaged, all devices should be sterilized before use. Additional sterile components should be available in
case of an unexpected need.
INTRAOPERATIVE
All instruction manuals should be carefully followed.At all times, extreme caution should be used around the spinal cord and nerve roots. Damage to nerves will cause loss of
neurological functions.
When the configuration of the bone cannot be fitted with an available temporary internal fixation device, and contouring is
absolutely necessary, it is recommended that such contouring be gradual and great care be used to avoid notching or scratching the surface of the device(s). The components should not be repeatedly or excessively bent any more than absolutely necessary. The components should not be reverse bent at the same location.
The implant surfaces should not be scratched or notched, since such actions may reduce the functional strength of the
construct.
Bone grafts must be placed in the area to be fused and the graft must be extended from the upper to the lower vertebrae to
be fused.
Bone cement should not be used since this material will make removal of the components difficult or impossible. The heat
generated from the curing process may also cause neurologic damage and bone necrosis.
Before closing the soft tissues, all screws should be seated onto the plate. Recheck the tightness of all screws after
finishing to ensure none have loosened during the tightening of the other screws.
POSTOPERATIVE
The physician’s postoperative directions and warnings to the patient, and the corresponding patient compliance are extremely important.
Detailed instructions on the use and limitations of the device should be given to the patient. If partial weight-bearing is
recommended or required prior to firm bony union, the patient must be warned that bending, loosening, or breakage of the components are complications which can occur as a result of excessive or early weight-bearing or excessive muscular activity. The risk of bending, loosening, or breakage of a temporary internal fixation device during postoperative rehabilitation may be increased if the patient is active, or if the patient is debilitated, demented or otherwise unable to use crutches or other such weight supporting devices. The patient should be warned to avoid falls or sudden jolts in spinal position.
To allow the maximum chances for a successful surgical result, the patient or device should not be exposed to mechanical
vibrations that may loosen the device construct. The patient should be warned of this possibility and instructed to limit and restrict physical activities, especially lifting and twisting motions and any type of sport participation. The patient should be advised not to smoke or consume alcohol during the bone graft healing process.
The patient should be advised of their inability to bend at the point of spinal fusion and taught to compensate for this
permanent physical restriction in body motion.
If a non-union develops or if the components loosen, bend, and/or break, the device(s) should be revised and/or removed
immediately before serious injury occurs. Failure to immobilize a delayed or non-union of bone will result in excessive and repeated stresses on the implant. By the mechanism of fatigue, these stresses can cause eventual bending, loosening, or breakage of the device(s). It is important that immobilization of the spinal surgical site be maintained until firm bony union is established and confirmed by roentgenographic examination. The patient must be adequately warned of these hazards and closely supervised to ensure cooperation until bony union is confirmed.
The VENTURE™ Anterior Cervical Plate System implants are temporary internal fixation devices. Internal fixation devices
are designed to stabilize the operative site during the normal healing process. After the spine is fused, these devices serve no functional purpose and should be removed. In most patients, removal is indicated because the implants are not intended to transfer or support forces developed during normal activities. If the device is not removed following completion of its intended use, one or more of the following complications may occur: (1) corrosion, with localized tissue reaction or pain, (2) migration of implant position possibly resulting in injury, (3) risk of additional injury from post-operative trauma, (4) bending, loosening and/or breakage, which could make removal impractical or difficult, (5) pain, discomfort, or abnormal sensations due to the presence of the device, (6) possible increased risk of infection, and (7) bone loss due to stress shielding.
While the surgeon must make the final decision on implant removal, it is the position of the Orthopedic Surgical
Manufacturers Association that whenever possible and practical for the individual patient, bone fixation devices should be removed once their service as an aid to healing is accomplished, particularly in younger and more active patients. Any decision to remove the device should take into consideration the potential risk to the patient of a second surgical procedure and the difficulty of removal. Implant removal should be followed by adequate postoperative management to avoid fracture.
Any retrieved devices should be treated in such a manner that reuse in another surgical procedure is not possible. As with
all orthopaedic implants, none of the VENTURE™ Anterior Cervical Plate System components should ever be reused under any circumstances.
PACKAGING
Devices may be supplied in a sterile or non-sterile form. Packages for each of the components should be intact upon receipt. Once the seal on the sterile package has been broken, the product should not be re-sterilized. If a loaner or consignment system is used, all sets should be carefully checked for completeness and all components should be carefully checked to ensure there is no damage prior to use. Damaged packages or products should not be used, and should be returned to Medtronic.
STERILIZATION
Unless marked sterile and clearly labeled as such in an unopened sterile package provided by the company, all implants used in surgery must be sterilized by the hospital prior to use. Remove all packaging materials prior to sterilization. Only sterile products should be placed in the operative field. Unless specified elsewhere, these products are recommended to be steam sterilized by the hospital using one of the sets of the process parameters listed in Table 1.
Table 1: Sterilization cycle parameters for the US and its territories
Method Cycle Temperature Exposure time
Steam Dynamic-air-removal 270°F (132°C) 4 Minutes 30 Minutes Steam Dynamic-air-removal 275°F (135°C) 3 Minutes 30 Minutes
*For medical facilities located outside the US and its territories. Some non-US health care authorities recommend sterilization according to these parameters so as to minimize the potential risk of transmission of Creutzfeldt- Jakob disease, especially of surgical instruments that could come into contact with the central nervous system.
Table 2: Sterilization cycle parameters for medical facilities outside the US and its territories
Method Cycle Temperature Exposure time
Steam Dynamic-air-removal 273°F (134°C) 4 Minutes 30 Minutes Steam Dynamic-air-removal 273°F (134°C) 20 Minutes* 30 Minutes
1
The minimum dry times were validated using sterilizers having vacuum drying capabilities. Drying cycles using ambient
atmospheric pressure may require longer dry times. Refer to the sterilizer manufacturer’s recommendations. Note: because of the many variables involved in sterilization, each medical facility should calibrate and verify the sterilization
process (e.g. temperatures, times) used for their equipment.
Minimum dry time
Minimum dry time
1
1
MRI INFORMATION
The VENTURE™ Anterior Cervical Plate System has not been evaluated for safety and compatibility in the MR environment. It has not been tested for heating, migration, or image artifact in the MR environment. The safety of the VENTURE™ Anterior Cervical Plate System in the MR environment is unknown. Scanning a patient who has this device may result in patient injury.
PRODUCT COMPLAINTS
For product problems, contact Medtronic.
FURTHER INFORMATION
Recommended directions for use of this system (surgical operative techniques) are available at no charge upon request. If further information is needed or required, contact Medtronic.
©2017 Medtronic Sofamor Danek. All rights reserved.
AUSTRALIAN SPONSOR:
Medtronic Australasia Pty Ltd 5 Alma Road Macquarie Park, NSW 2113 Australia
EXPLANATION OF SYMBOLS
Authorized representative in the European Community
CAUTION: Federal law (USA) restricts these devices to sale by or on the order of a physician.
Do not re-use
Batch code
Manufacturer
Catalogue number
Sterilized using irradiation
Non-sterile
Medtronic Sofamor Danek USA, Inc.
1800 Pyramid Place Memphis, TN 38132 Telephone: 800 933 2635 (USA)
901 396 3133 (Outside USA)
Fax: 901 396 0356
Medtronic B.V.
Earl Bakkenstraat 10 6422 PJ Heerlen The Netherlands Tel: + 31 45 566 80 00
Use-by date
For US audiences only
The device complies with European Directive MDD 93/42/EEC
Consult instructions for use at this website.
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