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The Momentum Posterior Spinal Fixation System is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion of the thoracolumbar and sacroiliac spine. When used as a posterior spine system, Momentum is intended for the following indications: degenerative disc disease, spinal stenosis, spondylolisthesis, spinal deformities (i.e., scoliosis, kyphosis, and/or lordosis), trauma (i.e., fracture or dislocation), tumor, pseudoarthrosis and failed previous fusion.

When used in conjunction with G21 V-Steady Bone Cement, the Momentum Posterior Spinal Fixation System is intended to restore the integrity of the spinal column even in the absence of fusion for a limited time period in patients with advanced stage tumors involving the thoracic and lumbar spine in whom life expectancy is of insufficient duration to permit achievement of fusion. Momentum™ Posterior Spinal Fixation System Screws augmented with G21 V-Steady Bone Cement are limited for use at spinal levels where the structural integrity of the spine is not severely compromised. Iliac screws are not intended to be used with bone cement.

In order to achieve additional levels of fixation, the Momentum Posterior Spinal Fixation System can also be connected to the Cortium® Universal OCT Spinal Fixation System or neon3® universal OCT spinal stabilization system via transition rods or connectors. Please refer to the Cortium or neon3 Instructions for Use for a list of indications for use.

The Momentum® Posterior Spinal Fixation System is a standard pedicle screw and rod systems designed for fixation and correction in the thoracolumbar and sacroiliac spine. This 510(k) submission adds hooks, various connectors, and monoaxial screws to the previously cleared system from K231809 and K191932.

The subject hooks are intended to provide deformity correction according to patient anatomical needs. The subject connectors are intended to provide additional options to improve stability. The subject monoaxial fenestrated screws are identical below the tulip to the previously cleared fenestrated screws with the addition of the option to use G21 V-Steady bone cement. The Momentum® Posterior Spinal Fixation System is manufactured from titanium alloy Ti-6Al-4V ELI per ASTM F136 and ISO 5832-3 and cobalt chromium Co-Cr-28Mo per ASTM F1537 and ISO 5832-12.

This document is a 510(k) premarket notification decision letter for a medical device called the "Momentum® Posterior Spinal Fixation System." It does not contain information about acceptance criteria or a study proving the device meets those criteria in the context of an AI/ML powered device.

The letter simply states that the FDA has reviewed the submission and determined the device to be "substantially equivalent" to legally marketed predicate devices. This determination is based on a comparison of the device's indications for use, technological characteristics, and performance data (mechanical strength testing results) to existing predicate devices.

Therefore, I cannot fulfill your request for the specific information regarding acceptance criteria and study data for an AI/ML powered device based solely on the provided text. The document concerns a traditional implantable medical device, not an AI/ML product.

To reiterate, the provided text does not contain any of the following information:

1. A table of acceptance criteria and the reported device performance: Not applicable, as this is not an AI/ML device with performance metrics like sensitivity, specificity, etc.
2. Sample sizes used for the test set and the data provenance: Not applicable for an AI/ML model. The "test set" here refers to mechanical testing of physical components, not a data-driven model.
3. Number of experts used to establish the ground truth...: Not applicable, as ground truth is not established in the context of an AI/ML model for this device.
4. Adjudication method: Not applicable.
5. Multi-reader multi-case (MRMC) comparative effectiveness study: Not applicable.
6. Standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable.
7. The type of ground truth used: Not applicable.
8. The sample size for the training set: Not applicable.
9. How the ground truth for the training set was established: Not applicable.

The performance data mentioned (ASTM F1717 Dynamic Compression Bending) refers to mechanical testing of the spinal fixation system components to ensure their structural integrity and durability, not the performance of an AI/ML algorithm.

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The Momentum® Posterior Spinal Fixation System is intended to provide immobilization of spinal segments in skeletally mature patients as an adjunct to fusion of the thoracolumbar and sacroiliac spine. When used as a posterior system, Momentum is intended for the following indications: degenerative disc disease, spinal stenosis, spondylolisthesis, spinal deformities (i.e., scoliosis, and/ or lordosis), trauma (i.e., fracture or dislocation), tumor, pseudoarthrosis and failed previous fusion.

When used in conjunction with G21 V-Steady Bone Cement, the Momentum Posterior Spinal Fixation System is intended to restore the integrity of the spinal column even in the absence of fusion for a limited time period in patients with advanced stage tumors involving the thoracic and lumbar spine in whom life expectancy is of insufficient duration to permit achievement of fusion. Momentum Posterior Spinal Fixation System Screws augmented with G21 V-Steady Bone Cement are limited for use at spinal levels where the structural integrity of the spine is not severely compromised. Iliac screws are not intended to be used with bone cement.

In order to achieve additional levels of fixation the Momentum Posterior System can also be connected to the neon38 universal OCT spinal stabilization system via transition rods or connectors. Please refer to the neon3 Instructions for Use for a list of indications for use.

The Momentum® MIS Posterior System is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion of the thoracolumbar and sacroiliac spine. When used as a posterior spine system, Momentum MS is intended for the following indications: degenerative disc disease, spinal stenosis, spondylolisthesis, spinal deformities (i.e., scoliosis, and or lordosis), trauma (i.e., fracture or dislocation), tumor, pseudoarthrosis and failed previous fusion.

When used in conjunction with G21 V-Steady Bone Cement, the Momentum MIS Posterior System is intended to restore the integrity of the spinal column even in the absence of fusion for a limited time period in patients with advanced stage tumors involving the thoracic and lumbar spine in whom life expectancy is of insufficient duration to permit achievement of fusion. Momentum MIS Posterior System Screws augmented with G21 V-Steady Bone Cement are limited for use at spinal levels where the structural integrity of the spine is not severely compromised. Iliac screws are not intended to be used with bone cement.

The Momentum® Posterior Spinal Fixation System, and Momentum® MIS Posterior Spinal Fixation System are standard pedicle screw and rod systems designed for fixation in the thoracolumbar and sacroiliac spine. There have been no major changes to the device since K191932, and K223274, respectively. The subject devices are identical to the previously cleared versions with the addition of the option to use bone cement (G21 V-Steady) with the fenestrated screws.

G21 V-Steady Bone Cement consists of a liquid and powder component. The powder component is constituted of PMMA beads shaped particles containing the initiator benzoy1 peroxide required for starting to initiate the cement curing. The radiopacifier agent, zirconium dioxide, is necessary for the cement visibility under radiographs but it does not take part of the curing process (radical polymerization). The liquid component comprises the monomer, methylmemethylmethacrylate (MMA); dimethyl-para-toluidine (DMPT) as polymerization accelerator and hydroquinone (HQ) as stabilizer to prevent polymerization of the liquid during storage. V-STEADY bone cement has an immediate development of viscosity and thus it is a high viscosity cement that maintains its properties throughout the useful working time.

While the provided text describes the regulatory clearance of a medical device (Momentum® Posterior Spinal Fixation System with G21 V-STEADY Bone Cement), it does not contain any information regarding acceptance criteria, performance studies (other than "bone cement usability testing and screw removal testing"), or detailed clinical data typically associated with AI/ML device evaluations.

The document is a 510(k) summary, which focuses on demonstrating substantial equivalence to a predicate device based on indications for use, technological characteristics, and non-clinical performance (material composition, manufacturing, basic mechanical testing). It is not a clinical study report for an AI/ML diagnostic or prognostic tool.

Therefore, I cannot fulfill your request to describe the acceptance criteria and the study that proves the device meets them, specifically regarding:

1. A table of acceptance criteria and the reported device performance: This information is not present. The document states "bone cement usability testing and screw removal testing was conducted to validate the use," but no specific metrics or acceptance criteria are given.
2. Sample sized used for the test set and the data provenance: Not applicable to the type of testing described (usability and screw removal, likely biomechanical or benchtop).
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable.
4. Adjudication method for the test set: Not applicable.
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, as this is a physical medical device, not an AI/ML-driven diagnostic tool.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable.
7. The type of ground truth used (expert concensus, pathology, outcomes data, etc): Not clearly defined for the "usability" and "screw removal" tests, but would likely refer to engineering specifications or validated test methods.
8. The sample size for the training set: Not applicable (no AI/ML training set).
9. How the ground truth for the training set was established: Not applicable (no AI/ML training set).

In summary, the provided document is a regulatory submission for a physical medical device (spinal fixation system with bone cement) and does not contain the characteristics of an AI/ML device study that your questions refer to.

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