VariLift®-C Interbody Fusion System

K231076 · Wenzel Spine, Inc. · ODP · Sep 27, 2023 · Orthopedic

Device Facts

• Record ID: K231076
• Device Name: VariLift®-C Interbody Fusion System
• Applicant: Wenzel Spine, Inc.
• Product Code: ODP · Orthopedic
• Decision Date: Sep 27, 2023
• Decision: SESE
• Submission Type: Traditional
• Regulation: 21 CFR 888.3080
• Device Class: Class 2
• Attributes: Therapeutic

Intended Use

The Wenzel Spine VariLift-C Interbody Fusion System is indicated for use in skeletally mature patients with cervical disc degeneration (DDD) and/or cervical spinal instability, as confirmed by imaging studies (radiographs, CT, MRI) that results in radiculopathy, myelopathy, and/or pain at one or multiple contiguous levels from C2/C3 to C7/T1. These DDD patients may have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s). The Wenzel Spine VariLift-C Interbody Fusion System is used to facilitate intervertebral body fusion in the cervical spine and is placed in a unilateral or a bilateral fashion via an anterior approach using autogenous and/or allogeneic bone graft comprised of cancellous, and/or corticocancellous bone graft, or a bone void filler as cleared by FDA for use in intervertebral body fusion to facilitate fusion. When used at one disc level, the Wenzel Spine VariLift-C interbody Fusion System may be used with or without supplemental fixation. When used at multiple contiguous levels, the Wenzel Spine VariLift-C Interbody Fusion System is intended to be used with supplemental fixation. Patients should have at least six (0) weeks of non-operative treatment prior to treatment with an intervertebral fusion device.

Device Story

VariLift-C is a self-tapping, expandable, cylindrical-ovoid interbody fusion device; features interior sliding wedge; includes fenestrations for bony ingrowth. Implanted via anterior approach in unilateral or bilateral fashion; used with autogenous/allogeneic bone graft or cleared bone void filler. Facilitates intervertebral body fusion in cervical spine. Used in clinical settings by surgeons. Provides structural support to vertebral endplates; promotes fusion; potentially alleviates radiculopathy, myelopathy, or pain associated with DDD or spinal instability. Used with or without supplemental fixation depending on number of levels treated.

Clinical Evidence

No clinical data provided. Substantial equivalence is supported by bench testing and comparison of technological characteristics to predicate devices.

Technological Characteristics

Cylindrical-ovoid, self-tapping, expandable interbody fusion device. Material: Medical grade titanium alloy (Ti6Al4V) per ASTM F136. Features interior sliding wedge and fenestrations for bony ingrowth. Mechanical device; no software or energy source.

Indications for Use

Indicated for skeletally mature patients with cervical disc degeneration (DDD) and/or cervical spinal instability (C2/C3 to C7/T1) presenting with radiculopathy, myelopathy, or pain. Includes patients with up to Grade 1 spondylolisthesis or retrolisthesis. Requires 6 weeks of failed non-operative treatment.

Regulatory Classification

Identification

An intervertebral body fusion device is an implanted single or multiple component spinal device made from a variety of materials, including titanium and polymers. The device is inserted into the intervertebral body space of the cervical or lumbosacral spine, and is intended for intervertebral body fusion.

Special Controls

*Classification.* (1) Class II (special controls) for intervertebral body fusion devices that contain bone grafting material. The special control is the FDA guidance document entitled “Class II Special Controls Guidance Document: Intervertebral Body Fusion Device.” See § 888.1(e) for the availability of this guidance document.(2) Class III (premarket approval) for intervertebral body fusion devices that include any therapeutic biologic (e.g., bone morphogenic protein). Intervertebral body fusion devices that contain any therapeutic biologic require premarket approval. (c) *Date premarket approval application (PMA) or notice of product development protocol (PDP) is required.* Devices described in paragraph (b)(2) of this section shall have an approved PMA or a declared completed PDP in effect before being placed in commercial distribution.

Predicate Devices

• CONDUIT™ Cervical Cage (K222276)
• VariLift-LX Interbody Fusion System, VariLift-C Interbody Fusion System (K180822)

Submission Summary (Full Text)

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September 27, 2023

Image /page/0/Picture/1 description: The image contains the logo of the U.S. Food and Drug Administration (FDA). The logo consists of two parts: the Department of Health & Human Services logo on the left and the FDA logo on the right. The FDA logo features the letters 'FDA' in a blue square, followed by the words 'U.S. FOOD & DRUG' and 'ADMINISTRATION' in blue text.

Wenzel Spine, Inc. % Justin Eggleton Vice President, Head of Musculoskeletal Regulatory Affairs MCRA 803 7th Street. NW Washington, District of Columbia 20001

# Re: K231076

Trade/Device Name: VariLift®-C Interbody Fusion System Regulation Number: 21 CFR 888.3080 Regulation Name: Intervertebral Body Fusion Device Regulatory Class: Class II Product Code: ODP Dated: August 9, 2023 Received: August 9, 2023

# Dear Justin Eggleton:

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 (the 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 aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database available 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.

Additional information about changes that may require a new premarket notification are provided in the FDA guidance documents entitled "Deciding When to Submit a 510(k) for a Change to an Existing Device" (https://www.fda.gov/media/99812/download) and "Deciding When to Submit a 510(k) for a Software Change to an Existing Device" (https://www.fda.gov/media/99785/download).

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Your device is also subject to, among other requirements, the Quality System (QS) regulation (21 CFR Part 820), which includes, but is not limited to, 21 CFR 820.30, Design controls; 21 CFR 820.90, Nonconforming product; and 21 CFR 820.100, Corrective and preventive action. Please note that regardless of whether a change requires premarket review, the QS regulation requires device manufacturers to review and approve changes to device design and production (21 CFR 820.30 and 21 CFR 820.70) and document changes and approvals in the device master record (21 CFR 820.181).

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 Part 803) for devices or postmarketing safety reporting (21 CFR Part 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR Part 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR Parts 1000-1050.

Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.

For comprehensive regulatory information about mediation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). 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 (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email ([e-mail]) or phone [phone] or 301-796-7100).

Sincerely,

# Katherine D. Kavlock -S

for

Brent Showalter, Ph.D. Assistant Director DHT6B: Division of Spinal Devices OHT6: Office of Orthopedic Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health

Enclosure

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# Indications for Use

510(k) Number (if known) K231076

Device Name VariLift®-C Interbody Fusion System

#### Indications for Use (Describe)

The Wenzel Spine VariLift-C Interbody Fusion System is indicated for use in skeletally mature patients with cervical disc degeneration (DDD) and/or cervical spinal instability, as confirmed by imaging studies (radiographs, CT, MRI) that results in radiculopathy, myelopathy, and/or pain at one or multiple contiguous levels from C2/C3 to C7/T1. These DDD patients may have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s).

The Wenzel Spine VariLift-C Interbody Fusion System is used to facilitate intervertebral body fusion in the cervical spine and is placed in a unilateral or a bilateral fashion via an anterior approach using autogenous and/or allogeneic bone graft comprised of cancellous, and/or corticocancellous bone graft, or a bone void filler as cleared by FDA for use in intervertebral body fusion to facilitate fusion. When used at one disc level, the Wenzel Spine VariLift-C interbody Fusion System may be used with or without supplemental fixation. When used at multiple contiguous levels, the Wenzel Spine VariLift-C Interbody Fusion System is intended to be used with supplemental fixation. Patients should have at least six (0) weeks of non-operative treatment prior to treatment with an intervertebral fusion device.

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

| <span style="font-size: large;">☑</span> Prescription Use (Part 21 CFR 801 Subpart D) | <span style="font-size: large;">☐</span> Over-The-Counter Use (21 CFR 801 Subpart C) |
|---------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|
|---------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------|

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# 510(k) Summary

| Device Trade Name: | VariLift®-C Interbody Fusion System |
|-----------------------|-------------------------------------------------------------------------------------------------------------------------------------|
| Manufacturer: | Wenzel Spine, Inc.<br>1130 Rutherford Ln #200<br>Austin, TX 78753 |
| Prepared by: | Justin Eggleton<br>MCRA, LLC<br>803 7th Street, NW, 3rd Floor<br>Washington, DC 20001<br>Office: 202.552.5800<br>[e-mail] |
| Date Prepared: | September 25, 2023 |
| Classifications: | 21 CFR §888.3080 |
| Classification Name: | Intervertebral body fusion device |
| Common Name: | Intervertebral Fusion Device With Bone Graft, Cervical |
| Class: | II |
| Product Codes: | ODP |
| Primary Predicate: | K222276, CONDUIT™ Cervical Cage |
| Additional Predicate: | K180822, VariLift® -C Interbody Fusion System |

# Indications For Use:

The Wenzel Spine VariLift Cervical Interbody Fusion System is indicated for use in skeletally mature patients with cervical disc degeneration (DDD) and/or cervical spinal instability, as confirmed by imaging studies (radiographs, CT, MRI) that results in radiculopathy, myelopathy, and/or pain at one or multiple contiguous levels from C2/C3 to C7/T1. These DDD patients may have up to Grade 1 spondylolisthesis or retrolisthesis at the involved level(s).

The Wenzel Spine VariLift Cervical Interbody Fusion System is used to facilitate intervertebral body fusion in the cervical spine and is placed in a unilateral fashion via an anterior approach using autogenous and/or allogeneic bone graft comprised of cancellous, and/or corticocancellous bone graft, or a bone void filler as cleared by FDA for use in intervertebral body fusion to facilitate fusion. When used at one disc level, the Wenzel Spine VariLift-C interbody Fusion System may be used with or without supplemental fixation. When used at multiple

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contiguous levels, the Wenzel Spine VariLift-C Interbody Fusion System is intended to be used with supplemental fixation. Patients should have at least six (6) weeks of non-operative treatment prior to treatment with an intervertebral fusion device.

# Device Description:

The VariLift® Cervical Interbody Fusion device (VariLift-C) is a self-tapping, expandable device with an interior sliding wedge. VariLift-C is cylindrical-ovoid in shape, which is adapted to the general shape of the vertebral endplates. The grooved and fluted fusion device has fenestrations (graft windows) positioned between each of its four quadrants to allow bony ingrowth and contact with the endplates. The device is manufactured from medical grade titanium alloy (Ti6Al4V) per ASTM F136.

## Predicate Device:

Wenzel Spine, Inc. submits the following information in this Premarket Notification to demonstrate that, for the purposes of FDA's regulation of medical devices, VariLift-C Interbody Fusion System is substantially equivalent in indications, design principles, and performance to the following predicate devices:

#### Primary Predicate

| Manufacturer | Device Name | 510(k) number |
|--------------|------------------------|---------------|
| DePuy Spine | CONDUIT™ Cervical Cage | K222276 |

#### Additional Predicate:

| Manufacturer | Device Name | 510(k) number |
|--------------------|-------------------------------------------------------------------------|---------------|
| Wenzel Spine, Inc. | VariLift-LX Interbody Fusion System, VariLift-C Interbody Fusion System | K180822 |

## Performance Testing Summary:

The substantial equivalence of the VariLift-C interbody Fusion Device to the predicate devices is evidenced by having the same intended use, Indications for Use, material, principles of operation, and fundamental technology.

## Conclusion:

The subject device and the predicate devices have intended use, have similar technological characteristics, and are made of similar materials. The subject and predicate devices are packaged in similar materials and are sterilized using similar methods. VariLift-C Interbody Fusion System is as safe, and as effective, compared to the predicate devices.