Search Results

The Axis Charcot Fixation System in diameters of 4.5 to 8.5mm is indicated for reconstruction procedures, non-unions and fusions of bones in the foot and ankle including the metatarsals, cuneiforms, cuboid, navicular, calcaneus and talus; specific examples include: medial and lateral column fusion resulting from neuropathic osteoarthropathy (Charcot).

The Axis Charcot Fixation System consists of 5.5, 6.5 and 7.5mm cannulated, titanium alloy fixation beams and accessories used for midfoot reconstruction. The modified device adds additional sizes, 4.5 and 8.5mm cannulated, titanium alloy fixation beams, previously cleared under Extremity Medical's 4.5 to 8.5 Screw System (K171018). The additional sizes offer the surgeon options for placement based on patient anatomy.

The provided text is a 510(k) summary for the Axis Charcot Fixation System, a medical device. It does not include information about AI/ML device performance, acceptance criteria, or studies involving human readers, as it describes a bone fixation system.

Therefore, most of the requested information cannot be extracted from this document as it pertains to AI/ML device evaluation.

However, based on the provided text, I can infer the following:

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

The document does not explicitly state acceptance criteria in a quantitative manner typical for AI/ML performance. Instead, it refers to "engineering analyses evaluating mechanical strength" and "pullout strength". The performance determined was "substantially equivalent to the predicate devices for the intended use."

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

This information is not applicable and not provided. The testing described is mechanical, not involving patient data or a "test set" in the context of an AI/ML device.

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)

This information is not applicable and not provided. The "ground truth" for this device would be established through engineering standards and physical measurements, not expert consensus on medical images or clinical outcomes.

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

This information is not applicable and not provided. Mechanical testing does not involve adjudication.

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

No such study was performed or is relevant to this device. This device is a physical bone fixation system, not an AI-assisted diagnostic tool.

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

This information is not applicable. This device is a physical bone fixation system, not an algorithm.

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

The "ground truth" for this device's performance is based on engineering standards and physical measurements of mechanical properties (strength, pullout force).

8. The sample size for the training set

This information is not applicable and not provided. There is no AI/ML model being "trained" for this device.

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

This information is not applicable and not provided. There is no AI/ML model being "trained" for this device.

In summary, the provided document describes a 510(k) submission for a physical medical device (bone fixation system) and does not contain information related to AI/Machine Learning device performance or ground truth establishment in the context of diagnostic or interventional AI.

Ask a specific question about this device

The Monster® Screw System is indicated for use in bone reconstruction, osteotomy, arthrodesis, joint fusion, ligament fixation, fracture repair and fracture fixation, appropriate for the device. Specific examples include:

Fractures and Osteotomies

• · Fractures of the tarsals, metatarsals and other fractures of the foot (i.e. LisFranc)
• · Avulsion fractures and fractures of the 5th metatarsal (i.e. Jones Fracture)
• · Talar fractures
• · Ankle fractures
• Navicular fractures
• · Fractures of the fibula, malleolus, and calcaneus
• · Metatarsal and phalangeal osteotomies
• · Weil osteotomy
• · Calcaneal osteotomy

Hallux Valgus Correction

• · Fixation of osteotomies (i.e. Akin, Scarf, Chevron)
• Interphalangeal (IP) arthrodesis
• · Proximal, midshaft, or distal osteotomy
• Lapidus arthrodesis

Arthrodesis/Deformity Correction

• 1st MTP arthrodesis
• Metatarsal deformity correction
• · Tarsometatarsal joint arthrodesis
• · Naviculocuneiform joint arthrodesis
• · Talonavicular arthrodesis
• Subtalar joint arthrodesis
• · Triple arthrodesis
• Medial column arthrodesis
• Subtalar joint distraction arthrodesis
• · Ankle arthrodesis
• · Lateralizing calcaneal osteotomy
• Lateral column lengthening
• · Hammertoe

Fusion resulting from neuropathic osteoarthropathy (Charcot) such as:

• Medial and lateral column
• · Subtalar, talonavicular, and calcaneocuboid

The Monster Screw System is comprised of threaded bone screws (Ti Alloy or Stainless Steel) offered in 2.0mm to 9.5mm diameters (in 0.5mm increments). In addition, a 2.7mm diameter is also part of the system. The overall screw length ranges from 8mm (for smaller diameters) thru 200mm (for larger diameters). The screws are available in a variety of designs including: fully or partially threaded, self-drilling or blunt, cannulated or solid, and headed or headless. Sizedmatched washers are also available.

The provided document is a 510(k) summary for the Paragon 28 Monster® Screw System. This document DOES NOT contain information regarding acceptance criteria or a study that proves a device meets acceptance criteria related to AI/ML device performance.

Instead, it's a regulatory submission for a medical device (bone fixation screws) demonstrating substantial equivalence to previously marketed predicate devices. The "studies" mentioned are preclinical tests (engineering analysis, torsional, pullout, insertion/removal evaluations, sterilization validations) to show that modifications to the screws do not adversely affect performance compared to the predicate devices.

Therefore, I cannot fulfill your request as the information requested is not present in the provided text.

Here's a breakdown of why this document doesn't fit your request:

• Acceptance Criteria for AI/ML Performance: Not applicable. This is a traditional medical device (hardware).
• Study Proving Device Meets Acceptance Criteria (AI/ML): Not applicable. The "studies" are mechanical and material tests for screws, not AI/ML performance evaluations.
• Table of Acceptance Criteria and Reported Device Performance: Not applicable for AI/ML.
• Sample Size for Test Set and Data Provenance: Not applicable for AI/ML.
• Number of Experts for Ground Truth and Qualifications: Not applicable for AI/ML.
• Adjudication Method: Not applicable for AI/ML.
• Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study: Not applicable. There are no human readers or AI assistance.
• Standalone (algorithm only) Performance: Not applicable.
• Type of Ground Truth Used: Not applicable for AI/ML. (For the screws, the "ground truth" would be the established mechanical properties and safety profiles of predicate devices).
• Sample Size for Training Set & How Ground Truth Established for Training Set: Not applicable. This device does not use a training set in the AI/ML sense.

Ask a specific question about this device