The subject components. Osteonics® Spinal System Versatile Cross Connector, are single-use devices which are sold non-sterile and are intended for use only with the other titanium alloy components of the commercially available Osteonics® Spinal System.

The uses for the legally marketed Osteonics® Spinal System are as follows:

As a posterior, non-pedicle screw system of the T4-S2 spine, the Osteonics® Spinal System is indicated for:

Long and short curve scoliosis .
. Vertebral fracture or dislocation
. Spondylolisthesis
Degenerative disc disease (defined as back pain of discogenic origin with degeneration of . the disc confirmed by history and radiographic studies).
. Previously failed fusion
. Spinal tumor

Pedicular Use:

When used as a pedicle screw fixation system of the non-cervical posterior spine in skeletally . mature patients, the Osteonics Spinal System is indicated for one or more of the following: degenerative spondylolisthesis with objective evidence of neurological impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion (pseudarthrosis).
In addition, the Osteonics Spinal system is indicated for pedicle screw fixation in skeletally . mature patients with severe spondylolisthesis (Grades 3 and 4) at the LS-S1 joint, having fusions with autogenous bone graft, having the device fixed or attached to the lumbar and sacral spine (with pedicle placement at L3 and below)with removal of the implants after the development of a solid fusion mass.

Device Description

The Osteonics® Spinal System is comprised of single use, non-sterile devices manufactured from ASTM F-136 Titanium alloy (Ti-6AI-4V ELI). The Osteonics® Spinal System Versatile Cross Connector may be used in spinal applications where additional stability for the device construct is desired by the surgeon. The Osteonics Spinal System Versatile Cross Connector allows a spinal construct on one side of the spine to be joined to another construct on the other side of the spine. The joining is intended to provide additional resistance to physiological forces such as unequal lateral loads, rotation, and isolated torsional movements.

AI/ML Overview

The provided text is a 510(k) summary for the Osteonics® Spinal System Versatile Cross Connector. This document focuses on demonstrating substantial equivalence to existing predicate devices, rather than establishing acceptance criteria through a clinical study with detailed performance metrics.

Therefore, the requested information regarding acceptance criteria, study details, sample sizes, expert qualifications, adjudication methods, MRMC studies, standalone performance, and ground truth establishment is not available in the provided text.

The document primarily states:

Acceptance Criteria (Implied): The mechanical and endurance properties of the subject components must be "within the range demonstrated by other existing spinal systems."
Study Type: "Fatigue and static testing" was performed.
Reported Device Performance: The testing "demonstrates the mechanical and endurance properties of the subject components are within the range demonstrated by other existing spinal systems."

Since this is a submission for substantial equivalence based

Summary

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2 1999 JUN

K990922

510(k) Summary

Osteonics Spinal System Versatile Cross Connector

510(k) PREMARKET NOTIFICATION SUMMARY OF SAFETY AND EFFECTIVENESS OSTEONICS® SPINAL SYSTEM VERSATILE CROSS CONNECTOR

Submission Information

Name and Address of the Sponsor of the 510(k) Submission:	Howmedica Osteonics Corp.59 Route 17Allendale, NJ 07401-1677201-825-4900
Contact Person:	Karen AriemmaRegulatory Affairs Specialist
Date Summary Prepared:	March 17, 1999
Device Identification
Proprietary Name:	Osteonics ® Spinal System Versatile Cross Connector
Common Name:	Spinal Fixation Appliances
Classification Name and Reference:	Spinal Interlaminal Fixation Orthosis21 CFR §888.3050Pedicle Screw System21 CFR §888.0370

Predicate Device Identification

The Osteonics® Spinal System Versatile Cross Connector components are substantially equivalent to other legally marketed crosslinking (transversing) assembly components. These predicate components are part of the commercially available spinal systems stated below:

· CD Horizon™ Low Profile Crosslink® Multi-Span™ Plates, Sofamor Danek
· Multi Axial Low Profile Crosslink® Multi-Span™ Plates, Sofamor Danek

Device Description

The Osteonics® Spinal System is comprised of single use, non-sterile devices manufactured from ASTM F-136 Titanium alloy (Ti-6AI-4V ELI). The Osteonics® Spinal System Versatile Cross

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510(k) Summary

Connector may be used in spinal applications where additional stability for the device construct is desired by the surgeon. The Osteonics Spinal System Versatile Cross Connector allows a spinal construct on one side of the spine to be joined to another construct on the other side of the spine. The joining is intended to provide additional resistance to physiological forces such as unequal lateral loads, rotation, and isolated torsional movements.

Intended Use

The following are specific indications for the Osteonics Spinal System:

As a non-pedicle screw system of the T4-S2 spine, the Osteonics® Spinal System is indicated for:

Long and short curve scoliosis ●
. Vertebral fracture or dislocation
. Spondylolisthesis
Degenerative disc disease (defined as back pain of discogenic origin with degeneration of . the disc confirmed by history and radiographic studies).
. Previously failed fusion
Spinal tumor

Pedicular Use:

When used as a pedicle screw fixation system of the non-cervical posterior spine in skeletally . mature patients, the Osteonics Spinal System is indicated for one or more of the following: degenerative spondylolisthesis with objective evidence of neurological impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion (pseudarthrosis).
. In addition, the Osteonics" Spinal System is indicated for pedicle screw fixation in skeletally mature patients with severe spondylolisthesis (Grades 3 and 4) at the L5-S1 joint, having fusions with autogenous bone graft, having the device fixed or attached to the lumbar and sacral spine (with pedicle placement at L3 and below)with removal of the implants after the development of a solid fusion mass.

Statement of Technological Comparison

The components of the Osteonics® Spinal System Versatile Cross Connector share the same materials, intended uses and basic design concepts as that of the predicate devices. Fatigue and static testing demonstrates the mechanical and endurance properties of the subject components are within the range demonstrated by other existing spinal systems.

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Public Health Service

2 1999 JUN

Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850

Ms. Elizabeth A. Staub Vice President, Quality Assurance/Regulatory Compliance/Clinical Research Howmedica Osteonics® Corporation 59 Route 17 Allendale, New Jersey 07401-1677

Re: K990922

Trade Name: Osteonics® Spinal System Versatile Cross Connector Regulatory Class: II Product Codes: KWP. MNH, and MNI Dated: March 17, 1999 Received: March 19, 1999

Dear Ms. Staub:

We have reviewed your Section 510(k) notification of intent to market the device referenced above and we have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to 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). You may, therefore, market the device, subject to the general controls provisions of the Act. 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.

If your device is classified (see above) into either class II (Special Controls) or class III (Premarket Approval), it may be subject to such additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 895. A substantially equivalent determination assumes compliance with the current Good Manufacturing Practice requirement, as set forth in the Quality System Regulation (QS) for Medical Devices: General regulation (21 CFR Part 820) and that, through periodic (OS) inspections, the Food and Drug Administration (FDA) will verify such assumptions. Failure to comply with the GMP regulation may result in regulatory action. In addition. FDA may publish further announcements concerning your device in the Federal Register. Please note: this response to your premarket notification submission does not affect any obligation you might have under sections 531 through 542 of the Act for devices under the Electronic Product Radiation Control provisions, or other Federal laws or regulations.

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Page 2 - Ms. Elizabeth A. Staub

This letter will allow you to begin marketing your device as described in your 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.

If you desire specific advice for your device on our labeling regulation (21 CFR Part 801 and additionally 809.10 for in vitro diagnostic devices), please contact the Office of Compliance at (301) 594-4659. Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR 807.97). Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers Assistance at its toll-free number (800) 638-2041 or at (301) 443-6597, or at its Internet address "http://www.fda.gov/cdrh/dsmamain.html".

Sincerely yours,

Celia M. Witten, Ph.D., M.D.
Director
Division of General and
Restorative Devices

Office of Device Evaluation Center for Devices and Radiological Health

Enclosures

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510(k) Number (if known): K9909922

Device Name: Osteonics® Spinal System Versatile Cross Connector®

Indications For Use:

The uses for the legally marketed Osteonics® Spinal System are as follows:

As a posterior, non-pedicle screw system of the T4-S2 spine, the Osteonics® Spinal System is indicated for:

Long and short curve scoliosis .
. Vertebral fracture or dislocation
. Spondylolisthesis
Degenerative disc disease (defined as back pain of discogenic origin with degeneration of . the disc confirmed by history and radiographic studies).
. Previously failed fusion
. Spinal tumor

Pedicular Use:

When used as a pedicle screw fixation system of the non-cervical posterior spine in skeletally . mature patients, the Osteonics Spinal System is indicated for one or more of the following: degenerative spondylolisthesis with objective evidence of neurological impairment, fracture, dislocation, scoliosis, kyphosis, spinal tumor, and failed previous fusion (pseudarthrosis).
In addition, the Osteonics Spinal system is indicated for pedicle screw fixation in skeletally . mature patients with severe spondylolisthesis (Grades 3 and 4) at the LS-S1 joint, having fusions with autogenous bone graft, having the device fixed or attached to the lumbar and sacral spine (with pedicle placement at L3 and below)with removal of the implants after the development of a solid fusion mass.

(PLEASE DO NOT WRITE BELOW THIS LINE-CONTINUE ON ANOTHER PAGE IF NEEDED)

Concurrence of CDRH, Office of Device Evaluation (ODE)
(Division Sign-Off)
Division of General Restorative Devices
510(k) Number	K99092

Prescription Use	X	OR	Over-The-Counter Use
------------------	---	----	----------------------	--

(Per 21 CFR 801.109)

(Optional Format 1-2-96)

Regulation Number and Section

§ 888.3050 Spinal interlaminal fixation orthosis.

(a)
Identification. A spinal interlaminal fixation orthosis is a device intended to be implanted made of an alloy, such as stainless steel, that consists of various hooks and a posteriorly placed compression or distraction rod. The device is implanted, usually across three adjacent vertebrae, to straighten and immobilize the spine to allow bone grafts to unite and fuse the vertebrae together. The device is used primarily in the treatment of scoliosis (a lateral curvature of the spine), but it also may be used in the treatment of fracture or dislocation of the spine, grades 3 and 4 of spondylolisthesis (a dislocation of the spinal column), and lower back syndrome.(b)
Classification. Class II.