K Number
K180179
Device Name
Firebird® Spinal Fixation Systems: Firebird System; Firebird Deformity System; Firebird® NXG Spinal Fixation System; Phoenix® Minimally Invasive Spinal Fixation System; Phoenix® CDX™ Minimally Invasive Spinal Fixation System; JANUS® Midline Fixation Screw; JANUS® Fenestrated Screw
Manufacturer
Date Cleared
2018-08-24

(213 days)

Product Code
Regulation Number
888.3070
AI/MLSaMDIVD (In Vitro Diagnostic)TherapeuticDiagnosticis PCCP Authorized
Intended Use
The Firebird Spinal Fixation Systems are intended to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion as a pedicle screw fixation system (T1-S2/Ilium), or as an anterolateral fixation system (T8-L5), in the treatment of the following acute and chronic instabilities or deformities: 1. degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies) 2. spondvlolisthesis. 3. trauma (i.e., fracture or dislocation), 4. spinal stenosis, 5. deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis), 6. tumor, 7. pseudoarthrosis, and 8. failed previous fusion When used for fixation to the ilium, the offset connectors of the Firebird Spinal Fixation System must be used in conjunction with pedicle screws placed at the S1 or S2 spinal level. The Firebird Spinal Fixation Systems components are used with certain components of the Spinal Fixation System (SFS), including rods, rod connectors and cross-connectors. When used for posterior pedicle screw fixation in pediatric patients, the Firebird Spinal Fixation Systems are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. Pediatric pedicle screw fixation is limited to a posterior approach. The Firebird Spinal Fixation Systems are intended to be used with autograft or allograft. The Phoenix MIS Fixation System when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with a minimally invasive approach for posterior spinal surgery. The JANUS Midline Fixation Screw and the JANUS Fenestrated Screw when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.
Device Description
The Firebird Spinal Fixation Systems include temporary, multiple component systems comprised of a variety of non-sterile and sterile single use components made of titanium alloy or cobalt chrome alloy that allow the surgeon to build a spinal implant construct. The systems are attached to the vertebral body and illum by means of screw or hook fixation to the non-cervical spine. The systems consist of an assortment of rods, multi-axial and mono-axial pedicle screws, lateral offsets, bone screws, screw bodies, hooks, iliac connectors and sterile packed HA coated bone screws. A subset of the systems' components may be used in pediatric patients. These components consist of a variety of screws ranging in diameters from 4.0mm to 7.5mm and lengths ranging from 25mm to 60mm. The JANUS Fenestrated Screws are a family of modular, cannulated bone screws manufactured from Ti-6AL-4V ELI or Ti-6AL-4V ELI with HA (Hydroxyapatite) Coating that features a fenestrated distal end. The JANUS Fenestrated Screws are designed to be used in an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.
More Information

Not Found

No
The document describes a mechanical spinal fixation system and does not mention any software, algorithms, or AI/ML capabilities.

Yes.
The device is intended to immobilize spinal segments and treat various spinal conditions, including degenerative disc disease, trauma, spinal stenosis, and deformities, which are therapeutic interventions.

No

Explanation: The Firebird Spinal Fixation Systems are described as implants used as an adjunct to fusion to provide immobilization of spinal segments. They are not intended for diagnosing a condition, but rather for treating existing conditions like degenerative disc disease, trauma, or deformities.

No

The device description explicitly states it includes "multiple component systems comprised of a variety of non-sterile and sterile single use components made of titanium alloy or cobalt chrome alloy" and describes physical components like screws, rods, and hooks. This indicates it is a hardware device, not software-only.

Based on the provided text, the Firebird Spinal Fixation Systems are not an In Vitro Diagnostic (IVD) device.

Here's why:

  • Intended Use: The intended use clearly describes the device as providing immobilization of spinal segments as an adjunct to fusion in the treatment of various spinal conditions. This is a surgical implant used directly on the patient's body.
  • Device Description: The device description details the physical components of the system (screws, rods, hooks, etc.) made of titanium or cobalt chrome alloy, designed to be attached to the vertebral body and ilium. This is consistent with a surgical implant.
  • Lack of IVD Characteristics: There is no mention of the device being used to examine specimens derived from the human body (like blood, tissue, or urine) to provide information for diagnosis, monitoring, or compatibility testing.

Therefore, the Firebird Spinal Fixation Systems fall under the category of a surgical implant/device rather than an In Vitro Diagnostic.

N/A

Intended Use / Indications for Use

The Firebird Spinal Fixation Systems are intended to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion system (T1-S2/Ilium), or as an anterolateral fixation system (T8-L5), in the treatment of the following acute and chronic instabilities or deformities:

  1. degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies)
    1. spondylolisthesis,
    1. trauma (i.e., fracture or dislocation),
    1. spinal stenosis,
    1. deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
    1. tumor.
    1. pseudoarthrosis, and
    1. failed previous fusion

When used for fixation to the illum, the offset connectors of the Firebird Spinal Fixation System must be used in conjunction with pedicle screws placed at the S1 or S2 spinal level.

The Firebird Spinal Fixation Systems components are used with certain components of the Spinal Fixation System (SFS). including rods, rod connectors and cross-connectors.

When used for posterior pedicle screw fixation in pediatric patients, the Firebird Spinal Fixation Systems are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. Pediatric pedicle screw fixation is limited to a posterior approach.

The Firebird Spinal Fixation Systems are intended to be used with autograft or allograft.

The Phoenix MIS Fixation System when used with the Firebird Systems is indicated to provide the surgeon with a minimally invasive approach for posterior spinal surgery.

The JANUS Midline Fixation Screw and the JANUS Fenestrated Screw when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.

Product codes

NKB

Device Description

The Firebird Spinal Fixation Systems include temporary, multiple component systems comprised of a variety of non-sterile and sterile single use components made of titanium alloy or cobalt chrome alloy that allow the surgeon to build a spinal implant construct. The systems are attached to the vertebral body and illum by means of screw or hook fixation to the non-cervical spine. The systems consist of an assortment of rods, multi-axial and mono-axial pedicle screws, lateral offsets, bone screws, screw bodies, hooks, iliac connectors and sterile packed HA coated bone screws.

A subset of the systems' components may be used in pediatric patients. These components consist of a variety of screws ranging in diameters from 4.0mm to 7.5mm and lengths ranging from 25mm to 60mm.

The JANUS Fenestrated Screws are a family of modular, cannulated bone screws manufactured from Ti-6AL-4V ELI or Ti-6AL-4V ELI with HA (Hydroxyapatite) Coating that features a fenestrated distal end. The JANUS Fenestrated Screws are designed to be used in an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.

Mentions image processing

Not Found

Mentions AI, DNN, or ML

Not Found

Input Imaging Modality

Not Found

Anatomical Site

Spinal segments (T1-S2/Ilium), non-cervical spine, vertebral body, ilium, S1 or S2 spinal level.

Indicated Patient Age Range

Skeletally mature patients, pediatric patients (for adolescent idiopathic scoliosis).

Intended User / Care Setting

Surgeon, posterior spinal surgery (open, minimally invasive, or midline approach).

Description of the training set, sample size, data source, and annotation protocol

Not Found

Description of the test set, sample size, data source, and annotation protocol

Not Found

Summary of Performance Studies (study type, sample size, AUC, MRMC, standalone performance, key results)

Mechanical testing was conducted on the subject JANUS Fenestrated Screws.
4.5mm X 35mm JANUS HA Coated Fenestrated Screw: ASTM F543, Annex A2: Test Method for Driving Torque of Medical Bone Screws.
4.5mm X 30mm JANUS Fenestrated Screw: JANUS Fenestrated Screw Worst Case Rationale Justification Memo (10116202).
Engineering analysis compared the bone screw shank geometry and strength of the worst case JANUS Fenestrated Screw (4.5mmx30mm) with the worst case predicate Firebird Spinal Fixation System Screw, K171082 (4.5mmx20mm). Based on the analysis, it is concluded that the subject JANUS Fenestrated Screw does not present a new worst case in terms of mechanical strength under torsion and bending load.

Key Metrics (Sensitivity, Specificity, PPV, NPV, etc.)

Not Found

Predicate Device(s)

K171082, K160879

Reference Device(s)

Not Found

Predetermined Change Control Plan (PCCP) - All Relevant Information

Not Found

§ 888.3070 Thoracolumbosacral pedicle screw system.

(a)
Identification. (1) Rigid pedicle screw systems are comprised of multiple components, made from a variety of materials that allow the surgeon to build an implant system to fit the patient's anatomical and physiological requirements. Such a spinal implant assembly consists of a combination of screws, longitudinal members (e.g., plates, rods including dual diameter rods, plate/rod combinations), transverse or cross connectors, and interconnection mechanisms (e.g., rod-to-rod connectors, offset connectors).(2) Semi-rigid systems are defined as systems that contain one or more of the following features (including but not limited to): Non-uniform longitudinal elements, or features that allow more motion or flexibility compared to rigid systems.
(b)
Classification. (1) Class II (special controls), when intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of the following acute and chronic instabilities or deformities of the thoracic, lumbar, and sacral spine: severe spondylolisthesis (grades 3 and 4) of the L5-S1 vertebra; degenerative spondylolisthesis with objective evidence of neurologic impairment; fracture; dislocation; scoliosis; kyphosis; spinal tumor; and failed previous fusion (pseudarthrosis). These pedicle screw spinal systems must comply with the following special controls:(i) Compliance with material standards;
(ii) Compliance with mechanical testing standards;
(iii) Compliance with biocompatibility standards; and
(iv) Labeling that contains these two statements in addition to other appropriate labeling information:
“Warning: The safety and effectiveness of pedicle screw spinal systems have been established only for spinal conditions with significant mechanical instability or deformity requiring fusion with instrumentation. These conditions are significant mechanical instability or deformity of the thoracic, lumbar, and sacral spine secondary to severe spondylolisthesis (grades 3 and 4) of the L5-S1 vertebra, degenerative spondylolisthesis with objective evidence of neurologic impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion (pseudarthrosis). The safety and effectiveness of these devices for any other conditions are unknown.”
“Precaution: The implantation of pedicle screw spinal systems should be performed only by experienced spinal surgeons with specific training in the use of this pedicle screw spinal system because this is a technically demanding procedure presenting a risk of serious injury to the patient.”
(2) Class II (special controls), when a rigid pedicle screw system is intended to provide immobilization and stabilization of spinal segments in the thoracic, lumbar, and sacral spine as an adjunct to fusion in the treatment of degenerative disc disease and spondylolisthesis other than either severe spondylolisthesis (grades 3 and 4) at L5-S1 or degenerative spondylolisthesis with objective evidence of neurologic impairment. These pedicle screw systems must comply with the following special controls:
(i) The design characteristics of the device, including engineering schematics, must ensure that the geometry and material composition are consistent with the intended use.
(ii) Non-clinical performance testing must demonstrate the mechanical function and durability of the implant.
(iii) Device components must be demonstrated to be biocompatible.
(iv) Validation testing must demonstrate the cleanliness and sterility of, or the ability to clean and sterilize, the device components and device-specific instruments.
(v) Labeling must include the following:
(A) A clear description of the technological features of the device including identification of device materials and the principles of device operation;
(B) Intended use and indications for use, including levels of fixation;
(C) Identification of magnetic resonance (MR) compatibility status;
(D) Cleaning and sterilization instructions for devices and instruments that are provided non-sterile to the end user; and
(E) Detailed instructions of each surgical step, including device removal.
(3) Class II (special controls), when a semi-rigid system is intended to provide immobilization and stabilization of spinal segments in the thoracic, lumbar, and sacral spine as an adjunct to fusion for any indication. In addition to complying with the special controls in paragraphs (b)(2)(i) through (v) of this section, these pedicle screw systems must comply with the following special controls:
(i) Demonstration that clinical performance characteristics of the device support the intended use of the product, including assessment of fusion compared to a clinically acceptable fusion rate.
(ii) Semi-rigid systems marketed prior to the effective date of this reclassification must submit an amendment to their previously cleared premarket notification (510(k)) demonstrating compliance with the special controls in paragraphs (b)(2)(i) through (v) and paragraph (b)(3)(i) of this section.

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August 24, 2018

Orthofix Inc. Ms. Jacki Koch Senior Regulatory Affairs Specialist 3451 Plano Parkway Lewisville, Texas 75056

Re: K180179

Trade/Device Name: Firebird® Spinal Fixation Systems: Firebird System; Firebird Deformity System; Firebird® NXG Spinal Fixation System; Phoenix® Minimally Invasive Spinal Fixation System; Phoenix® CDX™ Minimally Invasive Spinal Fixation System; JANUS® Midline Fixation Screw; JANUS® Fenestrated Screw Regulation Number: 21 CFR 888.3070 Regulation Name: Thoracolumbosacral pedicle screw system Regulatory Class: Class II Product Code: NKB Dated: July 23, 2018 Received: July 24, 2018

Dear Ms. Koch:

We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be avare that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.

If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.

1

Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/CombinationProducts/GuidanceRegulatoryInformation/ucm597488.htm); good manufacturing practice requirements as set forth in the quality systems (OS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to http://www.fda.gov/MedicalDevices/Safety/ReportaProblem/default.htm.

For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/MedicalDevices/DeviceRegulationandGuidance/) and CDRH Learn (http://www.fda.gov/Training/CDRHLearn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (http://www.fda.gov/DICE) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).

Sincerely,

Ronald P. Jean -S

for Mark N. Melkerson Director Division of Orthopedic Devices Office of Device Evaluation Center for Devices and Radiological Health

Enclosure

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Indications for Use

510(k) Number (if known) K180179

Device Name

Firebird® Spinal Fixation Systems: Firebird Deformity System; Firebird® NXG Spinal Fixation System; Phoenix® Minimally Invasve Spinal Fixation System; Phoenix® CDX™ Minimally Invasive Spinal Fixation System; JANUS® Midline Fixation Screw; JANUS® Fenestrated Screw

Indications for Use (Describe)

The Firebird Spinal Fixation Systems are intended to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion system (T1-S2/Ilium), or as an anterolateral fixation system (T8-L5), in the treatment of the following acute and chronic instabilities or deformities:

  1. degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies)
    1. spondylolisthesis,
    1. trauma (i.e., fracture or dislocation),
    1. spinal stenosis,
    1. deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
    1. tumor.
    1. pseudoarthrosis, and
    1. failed previous fusion

When used for fixation to the illum, the offset connectors of the Firebird Spinal Fixation System must be used in conjunction with pedicle screws placed at the S1 or S2 spinal level.

The Firebird Spinal Fixation Systems components are used with certain components of the Spinal Fixation System (SFS). including rods, rod connectors and cross-connectors.

When used for posterior pedicle screw fixation in pediatric patients, the Firebird Spinal Fixation Systems are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. Pediatric pedicle screw fixation is limited to a posterior approach.

The Firebird Spinal Fixation Systems are intended to be used with autograft or allograft.

The Phoenix MIS Fixation System when used with the Firebird Systems is indicated to provide the surgeon with a minimally invasive approach for posterior spinal surgery.

The JANUS Midline Fixation Screw and the JANUS Fenestrated Screw when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.

Type of Use (Select one or both, as applicable)

|X Prescription Use (Part 21 CFR 801 Subpart D)

| Over-The-Counter Use (21 CFR 801 Subpart C)

CONTINUE ON A SEPARATE PAGE IF NEEDED.

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Image /page/4/Picture/0 description: The image shows the logo for Orthofix. The logo consists of a blue abstract shape on the left, followed by the word "ORTHOFIX" in black, bold letters. There is a small trademark symbol to the right of the word "ORTHOFIX".

510(k) SUMMARY

Firebird Spinal Fixation Systems: JANUS Fenestrated Screws

510(k) Owner Information
Name:
Address:Orthofix Inc.
3451 Plano Parkway
Lewisville, TX 75056
Telephone Number:
Fax Number:
Email:214-937-2100
214-937-3322
jackikoch@orthofix.com
Registration Number:2183449
Contact Person:Jacki Koch
Date Prepared:July 23, 2018
Name of Device
Trade Name / Proprietary
Name:Firebird® Spinal Fixation System which includes:
Firebird System
Firebird Deformity System
Firebird® NXG Spinal Fixation System
Phoenix® Minimally Invasive Spinal Fixation System
Phoenix® CDX™ Minimally Invasive Spinal Fixation System
JANUS® Midline Fixation Screw
JANUS® Fenestrated Screw
Common Name:Spinal Fixation System
Product Code:NKB
Regulatory Classification:Class II - 21 CFR § 888.3070 - Thoracolumbosacral Pedicle Screw
System
Review Panel:Orthopedic Device Panel
Predicate Devices:Firebird Spinal Fixation System - Orthofix Inc - K171082
Additional Predicate Device: VIPER and EXPEDIUM Fenestrated Screw Systems - DePuy
Spine, Inc. - (K160879)

Reason for 510(k) Submission:

Due to the advancements in surgical techniques and surgeon requests, Orthofix is submitting this Traditional 510(k) premarket notification for the addition of the JANUS Fenestrated Screws.

Device Description

The Firebird Spinal Fixation Systems include temporary, multiple component systems comprised of a variety of non-sterile and sterile single use components made of titanium alloy or cobalt

5

chrome alloy that allow the surgeon to build a spinal implant construct. The systems are attached to the vertebral body and illum by means of screw or hook fixation to the non-cervical spine. The systems consist of an assortment of rods, multi-axial and mono-axial pedicle screws, lateral offsets, bone screws, screw bodies, hooks, iliac connectors and sterile packed HA coated bone screws.

A subset of the systems' components may be used in pediatric patients. These components consist of a variety of screws ranging in diameters from 4.0mm to 7.5mm and lengths ranging from 25mm to 60mm.

The JANUS Fenestrated Screws are a family of modular, cannulated bone screws manufactured from Ti-6AL-4V ELI or Ti-6AL-4V ELI with HA (Hydroxyapatite) Coating that features a fenestrated distal end. The JANUS Fenestrated Screws are designed to be used in an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.

Intended Use / Indications for Use

The Firebird Spinal Fixation Systems are intended to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion as a pedicle screw fixation system (T1-S2/Ilium), or as an anterolateral fixation system (T8-L5), in the treatment of the following acute and chronic instabilities or deformities:

  1. degenerative disc disease (defined as discogenic back pain with degeneration of the disc confirmed by history and radiographic studies)
    1. spondvlolisthesis.
    1. trauma (i.e., fracture or dislocation),
    1. spinal stenosis,
    1. deformities or curvatures (i.e., scoliosis, kyphosis, and/or lordosis),
    1. tumor,
    1. pseudoarthrosis, and
    1. failed previous fusion

When used for fixation to the ilium, the offset connectors of the Firebird Spinal Fixation System must be used in conjunction with pedicle screws placed at the S1 or S2 spinal level.

The Firebird Spinal Fixation Systems components are used with certain components of the Spinal Fixation System (SFS), including rods, rod connectors and cross-connectors.

When used for posterior pedicle screw fixation in pediatric patients, the Firebird Spinal Fixation Systems are indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis. Pediatric pedicle screw fixation is limited to a posterior approach.

The Firebird Spinal Fixation Systems are intended to be used with autograft or allograft.

The Phoenix MIS Fixation System when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with a minimally invasive approach for posterior spinal surgery.

The JANUS Midline Fixation Screw and the JANUS Fenestrated Screw when used with the Firebird Spinal Fixation Systems is indicated to provide the surgeon with an open, minimally invasive or midline approach for posterior spinal surgery. The JANUS Fenestrated Screws are intended to be used with saline and radiopaque dye.

Summary of the Technological Characteristics of the Device Compared to the Selected Predicate Devices

6

ORTHOFIX®

The technological characteristics of the JANUS Fenestrated Screws are similar to the predicate devices in terms of design, dimensions, intended use, materials, and performance characteristics. There are no significant differences between the JANUS Fenestrated Screws and the predicate devices which would adversely affect the use of the product.

PERFORMANCE DATA - Summary of Non-Clinical Test Conducted for Determination of Substantial Equivalence

Mechanical testing was conducted on the subject JANUS Fenestrated Screws as listed in Table 1: Mechanical Performance Testing.

Subject DeviceMechanical Testing
4.5mm X 35mm JANUS HA Coated
Fenestrated ScrewASTM F543, Annex A2: Test Method for
Driving Torque of Medical Bone Screws
4.5mm X 30mm JANUS Fenestrated ScrewJANUS Fenestrated Screw Worst Case
Rationale Justification Memo (10116202)

Table 1: Mechanical Performance Testing

Engineering analysis compared the bone screw shank geometry and strength of the worst case JANUS Fenestrated Screw (4.5mmx30mm) with the worst case predicate Firebird Spinal Fixation System Screw, K171082 (4.5mmx20mm). Based on the analysis, it is concluded that the subject JANUS Fenestrated Screw does not present a new worst case in terms of mechanical strength under torsion and bending load.

The safety and effectiveness of this device has not been established when used in conjunction with bone cement or for use in patients with poor bone quality (e.g., osteoporosis, osteopenia). This device is intended only to be used with saline or radiopaque dye.

Basis of Substantial Equivalence

The subject devices will utilize the same intended use, indications for use, and will have the same technological characteristics, design, materials and principles of operation as to the predicate devices.