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The MANTIS® Spinal System and MANTIS® Redux Spinal System is intended for percutaneous, posterior, non-cervical pedicle and non-pedicle fixation of the spine to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion for the following indications: Degenerative Disc Disease (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthrosis; and Failed Previous Fusion.

The Radius® Spinal System is intended for use in the noncervical spine. When used as an anterior/anterolateral and posterior, noncervical pedicle and non-pedicle fixation system, the Radius® Spinal system is intended to provide additional support during fusion using autograft or allograft in skeletally mature patients in the treatment of the following acute and chronic instabilities or deformities: Degenerative Disc Disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthorisis; and Failed Pervious Fusion. The Radius® Spinal System can also be linked to the XIA® Titanium Spinal System via the Ø5.5mm to Ø6.0mm Radius® rod-to-rod connector.

The Stryker Spine TRIO® Plate System is intended for posterior, noncervical (T10-S1) pedical and nonpedical fixation of the spine for the following indications: Degenerative Disc Disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthorisis; and Failed Pervious Fusion.

The Stryker Spine TRIO® Spinal Fixation System is intended for posterior, noncervical pedicle and non-pedicle fixation of the spine. The Stryker Spine TRIO® Spinal Fixation System is indicated for: Degenerative Disc Disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthorisis; and Failed Pervious Fusion. The TRIO® Spinal Fixation Sytem is intended to be used in conjunction with the OSS Diapason Rods, Opus Spinal System Rods, and the Multi-Axis Cross Connectors.

The Stryker Spine TRIO® Spinal System is intended for posterior, noncervical pedicle and nonpedicle fixation of the spine to provide immobilization and stabilization of spinal segements in skeletally mature patients as an adjunct to fusion for the following indications: Degenerative Disc Disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthorisis; and Failed Pervious Fusion. The TRIO® + Spinal System is intended to be used in conjunction with the OSS/Diapason Rods or Opus Rods, XIA® Pre-bent Rods, and the Multi-Axis Cross Connectors.

The Stryker Spine TRIO® TRAUMA Spinal System is intended for percutaneous, posterior, non-cervical pedicle fixation of the spine to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion for the following indications: Degenerative Disc Disease (DD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthorisis; and Failed Pervious Fusion.

The XIA® Spinal System and XIA® 4.5 Spinal System are intended for anterior/anterolateral and posterior, noncervical pedicle and non-pedicle fixation for the following indications: Degenerative Disc Disease (DDD) (Defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e., fracture or dislocation); Spinal Stenosis; Curvatures (i.e., Scoliosis, Kyphosis, and/or Lordosis); Tumor; Pseudoarthrosis and; Failed previous fusion. The 6mm diameter rods from the DIAPASON® Spinal System and OPUS® Spinal System are intended to be used with the other components of the XIA® Titanium Spinal System. The Titanium Multi-Axial Cross Connector are intended to be used with the other components of the XIA® Titanium Spinal System.

The XIA® 3 Spinal System is intended for use in the noncervical spine. When used as an anterior/anterolateral and posterior, noncervical pedicle fixation system, the XIA® 3 Spinal System is intended to provide additional support during autograft or allograft in skeletally mature patients in the treatment of the following acute and chronic instabilities or deformities: Degenerative Disc Disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor, Pseudoarthorisis; and Failed Pervious Fusion. The Ø5.5mm rods from the Stryker Spine Radius® Spinal System and the Ø6.0mm Vitallium Rods from the XIA® Spinal System are intended to be used with the other components of the XIA® 3 Spinal System. When used for posterior noncervical pedicle screw fixation in pediatric patients, the XIA® Spinal System implants are indicated as an adjunct to fusion to treat adolescent idiopathic scollosis. The XIA® 3 Spinal System for pediatic use is intended to be used with autograft and/or allograft. Pediatric pedicle screw fixation is limited to a posterior approach.

The XIA® 4.5 Spinal System is intended for anterior/anteriolateral and posterior, noncervical pedicle and non-pedicle fixation for the following indications: Degenerative Disc Disease (DD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e. fracture or dislocation); Spinal Stenosis; Curvature (i.e. scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthorisis; and Failed Pervious Fusion. The Stryker Spine DIAPASON® Spinal System, OPUS® Spinal System and XIA® 4.5 Spinal System can be linked to the XIA® 4.5 Spinal System via the rod-to-rod connector when used for the aforementioned indications in skeletally mature patients as an adjunct to fusion. Except for the staples, the XIA® 4.5 Spinal System is indicated as an adjunct to fusion to treat adolescent idiopathic scoliosis when used for posterior noncervical pedicle screw fixation in pediatric patients. The XIA® 4.5 Spinal System for pediatric use in intended to be used with autograft and/or allograft. Pediatric pedicle screw fixation is limited to a posterior approach.

Device Description

The STRYKER Spine thoraco-lumbar spinal fixation systems, subject of this 510(k), are non-cervical, pedicle and non-pedicle fixation systems comprised of screws, rods, plates, hooks, connectors, washers and staples. The components are manufactured from either Titanium (Titanium Alloy and CP Titanium), Stainless Steel or Cobalt-Chromium-Molybdenum Alloy (Vitallium®). This Special 510(k) submission seeks clearance for sterile labeling of the listed STRYKER Spine thoraco-lumbar spinal fixation systems. All of the components of the subject devices will be sterilized by gamma radiation, a traditional sterilization method as per FDA guidance document, Updated 510(k) Sterility Review Guidance K90-1; Guidance for Industry and FDA.

AI/ML Overview

This is a 510(k) Premarket Notification for sterile packaging of a range of spinal systems. The key claim is substantial equivalence to previously cleared non-sterile versions of the same devices. Therefore, the "device" in question for this submission is specifically the sterile packaging and the sterilization process, not the spinal implant itself as a medical device performing a physiological function. The "performance" being evaluated is the ability to maintain sterility and the structural integrity of the device within its packaging over its shelf life.

Here's the breakdown of the acceptance criteria and the study that proves the device meets them:

1. A table of acceptance criteria and the reported device performance

Acceptance Criteria	Reported Device Performance
Sterilization Effectiveness	Demonstrated by gamma radiation, a traditional sterilization method per FDA guidance document, Updated 510(k) Sterility Review Guidance K90-1; Guidance for Industry and FDA.
Sterile Barrier Packaging System	Demonstrated effective in maintaining sterility for the recommended 5-year shelf-life.
Impact on Device Characteristics	No design modifications were incorporated to facilitate sterile packaging. The sterile-packed implant components maintain the same technological characteristics (design, technical requirements, materials of construction, indications/intended use) as the non-sterile predicate devices.
Shelf Life	Demonstrated a 5-year shelf life in sterile packaging.
Safety and Effectiveness	Concluded to be safe and effective, retaining the same intended use, indications, technological characteristics, and mode of operation as the predicate non-sterile devices.

2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

The document primarily discusses the sterilization process and packaging rather than clinical performance of the implant itself. Therefore, typical "test set" in the context of clinical or diagnostic AI/software devices (e.g., patient data) is not applicable here.

Sterilization and Packaging Validation Data: The document mentions "accelerated aging data" for validating the 5-year shelf life. It does not specify the sample size for this testing, nor the country of origin or whether it was retrospective or prospective. However, these types of tests are typically prospective laboratory studies conducted in controlled environments.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)

Not applicable. This submission is about the sterility and packaging of medical implants, not a diagnostic or clinical performance study that would require expert ground truth labeling. The "ground truth" here is the scientific validation of sterilization methods and shelf life according to recognized standards and FDA guidance.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set

Not applicable. Adjudication methods are typically used in clinical studies for establishing ground truth, which is not relevant to this submission on sterile packaging.

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance

Not applicable. This is not an AI/software device and no MRMC study was conducted.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

Not applicable. This is not an AI/software device.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)

The "ground truth" for this submission relies on:

Scientific Validation of Sterilization: Adherence to established scientific principles and FDA guidance for sterilization (gamma radiation), demonstrating a Sterility Assurance Level (SAL).
Accelerated Aging Data: Laboratory testing to simulate real-time aging and demonstrate that the sterile barrier packaging system maintains sterility for the stated shelf life.
Material and Design Specification Conformity: Confirmation that the components are manufactured from specified materials and that their design, technical requirements, and intended use are identical to the non-sterile predicate devices.

8. The sample size for the training set

Not applicable. This is not a machine learning or AI device that requires a training set.

9. How the ground truth for the training set was established

Not applicable. As this is not a machine learning or AI device, there is no training set and therefore no ground truth establishment for a training set.

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K Number

K070368

Device Name

TRIO PLATE SYSTEM, TRIO SPINAL FIXATION SYSTEM, TRIO+ SPINAL SYSTEM

Manufacturer

STRYKER CORP.

Date Cleared

2007-05-04

(85 days)

Product Code

Regulation Number

Type

Panel

Reference & Predicate Devices

K032855,K052971,K043180,K060361,K060369,K062698

Intended Use

The Stryker Spine Trio® Plate System is intended for posterior, noncervical (T10-S1) pedical and nonpedical fixation of the spine for the following indications: Degenerative disc disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e., fracture or dislocation); Spinal stenosis; Curvatures (i.e., scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthrosis; and Failed previous fusion.

The Stryker Spine Trio® Spinal Fixation System is intended for posterior, noncervical pedicle and non-pedicle fixation of the spine. The Stryker Spine Trio® Spinal Fixation System is indicated for: Degenerative disc disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e., fracture or dislocation); Spinal stenosis; Curvatures (i.e., scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthrosis; and Failed previous fusion. The Trio® Spinal Fixation System is intended to be used in conjunction with the OSS Diapason Rods, Opus Spinal System Rods, and the Multi-Axis Cross Connectors.

The Stryker Spine Trio®+ Spinal System is intended for posterior, noncervical pedicle and non-pedicle fixation of the spine. The Stryker SpineTrio®+ Spinal System is indicated for: Degenerative disc disease (DDD) (defined as back pain of discogenic origin with degeneration of the disc confirmed by history and radiographic studies); Spondylolisthesis; Trauma (i.e., fracture or dislocation); Spinal stenosis; Curvatures (i.e., scoliosis, kyphosis, and/or lordosis); Tumor; Pseudoarthrosis; and Failed previous fusion. The Trio + Spinal System is intended to be used in conjunction with the OSS Diapason Rods, Opus Spinal System Rods, Xia " Pre-bent Rods, and the Multi-Axis Cross Connectors.

Device Description

The Stryker Spine Trio® Plate System is comprised of spinal screws, plates and locking components, fabricated from Titanium alloy.

The Stryker Spine Trio® Spinal Fixation System is comprised of spinal screws, rods, and offset connectors, fabricated from Titanium alloy.

The Stryker Spine Trio®+ Spinal System contains spinal screws, rods, and connectors, fabricated from Titanium alloy.

AI/ML Overview

The provided submission does not include information about acceptance criteria or a study proving the device meets acceptance criteria in the way typically found for AI/ML-based medical devices.

This document describes a 510(k) premarket notification for the Stryker Spine Trio® Plate System, Trio® Spinal Fixation System, and Trio®+ Spinal System. This is a traditional medical device (spinal fixation system) and not an AI/ML-based device. The "study" mentioned refers to mechanical testing in compliance with FDA's Guidance for Spinal System 510(k)s, not a clinical study involving human or AI performance evaluation.

Therefore, the requested information elements related to AI/ML device performance (like sample sizes for test/training sets, experts, adjudication methods, MRMC studies, standalone performance, and ground truth establishment) are not applicable to this submission.

Here's a breakdown based on the characteristics of this traditional medical device submission:

1. Table of Acceptance Criteria and Reported Device Performance

Criteria Category	Acceptance Criteria (N/A for AI/ML)	Reported Device Performance (N/A for AI/ML)
Material Properties	Compatibility with Titanium alloy standards, mechanical strength, fatigue resistance.	Implied: Passed mechanical testing, demonstrating sufficient strength and durability as per FDA guidance for spinal systems. The device is fabricated from Titanium alloy.
Biocompatibility	Biocompatibility with human tissue.	Implied: Met biocompatibility standards for implantable devices made of Titanium alloy, as it's a predicate-based submission.
Sterilization	Ability to be sterilized.	Implied: Sterilization methods are suitable for the device as an implantable medical device.
Functional Equivalence	Equivalent mechanical performance to predicate devices.	Stated: "Testing in compliance with FDA's Guidance for Spinal System 510(k)'s May 3, 2004 was performed... and was presented in their respective predicate 510(k)s."
Indications for Use	Expanded Class III indications (NKB) are appropriate and consistent with predicate devices and FDA guidance.	Stated: The submission "addresses the additional Class III indications associated with product code NKB." The expanded indications were "modeled on the suggested indications for use statement for posterior thoracolumbar systems... suggested by FDA in FDA's 'Guidance for Industry and FDA Staff: Spinal System 510(k)s,' dated May 3, 2004."

Explanation: For this type of traditional spinal implant, the "acceptance criteria" are primarily established through bench testing (mechanical, material, biocompatibility) to demonstrate substantial equivalence to predicate devices and adherence to relevant FDA guidance and recognized standards. The submission highlights that no new components are being introduced; rather, it is seeking approval for additional Class III indications based on existing predicate device testing and FDA guidance. There is no performance reported in terms of diagnostic accuracy or clinical outcomes of the device itself beyond its mechanical integrity and intended use alignment.

2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

Not applicable. This submission is for a traditional spinal fixation system, not an AI/ML device that would have a "test set" of data in the AI/ML context. The testing referenced is bench/mechanical testing to demonstrate substantial equivalence.