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When used without cement, CD Horizon™ Fenestrated Screws (with or without Sextant™ or Longitude™ instrumentation) are intended for posterior, non-cervical fixation 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, tumor and/or trauma (i.e. fracture or dislocation), spinal stenosis, curvatures (i.e. scoliosis, kyphosis), pseudarthrosis, and/or failed previous fusion.

When used in conjunction with Medtronic HV-R™ Fenestrated Screw Cement or Kyphon™ Xpede™ Bone Coment, CD Horizon™ Fenestrated Screws are intended to restore the integrity of the spinal column even in the absence of fusion for a limited time in patients with advanced stage tumors involving the thoracic, lumbar, or sacral spine in whom life expectancy is of insufficient duration to permit achievement of fusion™ Fenestrated Screws augmented with Medtronic HV-R™ Fenestrated Screw Cement or Kyphon™ Bone Cement are for use at spinal levels where the structural integrity of the spine is not severely compromised.

Kyphon™ Xpede™ Bone Cement is indicated for the treatment of pathological fractures of the vertebral body due to osteoporosis, cancer, or benign lesions a cementoplasty (i.e. kyphoplasty or vertebroplasty) procedure. It is also indicated for the fixation of pathological fractures of the sacral vertebral body or ala using sacral vertebroplasty or sacroplasty. Cancer includes multiple myeloma and metastatic lesions, including those arrsing from breast or lung cancer, or lymphoma. Benign lesions include hemangioma and giant cell tumor. Pathological fracture may include a symptomatic microfracture (as documented by appropriate imaging and/or presence of a lytic lesion) without obvious loss of vertebral body height.

When used in conjunction with CD Horizon™ Fenestrated Screws, Kyphon™ Xpede™ Bone Cement is intended to restore the integrity of the spinal column even in the absence of fusion for a limited time in patients with advanced stage tumors involving the thoracic, lumbar, or sacral spine in whom life expectancy is of insufficient duration to permit achievement of fusion. CD Horizon™ Fenestrated Screws augmented with Kyphon™ Xpede™ Bone Cement are for use at spinal levels where the structural integrity of the spine is not severely compromised.

When used in conjunction with CD Horizon™ Fenestrated Screws, Medtronic HV-R™ Fenestrated Screw Cement is intended to restore the integrity of the spinal column, even in the absence of fusion for a limited time in patients with advanced stage tumors involving the thoracic, lumbar, or sacral spine in whom life expectancy is of insufficient duration to permit achievement of fusion. Medronic HV-R™ Fenestrated Screw Cement is limited to use at spinal levels where the structural integrity of the spine is not severely compromised.

The CD Horizon™ Fenestrated Screw Set consists of a variety of cannulated screws. These screws contain a series of fenestrations which allows polymethylmethacrylate (PMMA) bone cement (Medtronic HV-R™ Fenestrated Screw Cement or Kyphon™ Xpede™ Bone Cement) to be injected into the treated site. This cement is used to augment screw fixation into the pedicle in patients whose life expectancy is of insufficient duration to permit achievement of fusion. These implants may also serve as traditional pedicle screws when used without bone cement in patients with non-compromised bone quality. CD Horizon™ Fenestrated Screws are specifically designed to connect to appropriate rods and associated connecting components contained within the CD Horizon™ Spinal System. CD Horizon™ Fenestrated Screw Set implant components are fabricated from medical grade titanium and/or medical grade titanium alloy and/or medical grade cobalt-chromiummolybdenum allov.

Kyphon™ Xpede™ Bone Cement is a polymethylmethacrylate (PMMA) that contains approximately 30% barium sulfate. It is designed for delivery in a highly viscous state. Kyphon™ Xpede™ Bone Cement is provided sterile in two components: 20 grams of powder and nine grams of liquid. The powder contains methylmethacrylate-styrene copolymer, barium sulfate and benzoyl peroxide. The liquid contains methylmethacrylate (monomer), hydroquinone and N, N dimethyl-p-toluidine.

Medtronic HV-RTM Fenestrated Screw Cement is a polymethylmethacrylate (PMMA) that contains approximately 30% barium sulfate. It is designed for delivery in a highly viscous state. Medtronic HV-RTM Fenestrated Screw Cement is provided sterile in two components: 20 grams of powder and nine grams of liquid. The powder contains methylmethacrylate-styrene co-polymer, barium sulfate, and benzovl peroxide. The liguid contains methylmethacrylate (monomer), hydroquinone and N. N dimethyl-p-toluidine.

This FDA 510(k) summary does not contain any information regarding clinical performance studies, AI algorithms, or human-in-the-loop performance.

The document is a premarket notification for medical devices (bone cement and fenestrated screws), not an AI/ML-driven diagnostic device. The application focuses on demonstrating substantial equivalence to previously cleared predicate devices based on technological characteristics and existing performance data for those predicates.

Therefore, I cannot provide the requested information about acceptance criteria, reported device performance, sample sizes for test/training sets, expert qualifications, adjudication methods, or MRMC studies, as these types of studies were not conducted or reported in this submission for these specific medical devices.

The document explicitly states:

"Medtronic believes that testing is not warranted for the subject devices as they do not present a new worst case when compared to the predicate devices. All existing predicate data previously provided in the predicate 510(k)s are still applicable."

This indicates that the submission relies on the performance data of the predicate devices rather than new performance studies for the subject devices themselves.

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When used without cement, the CD HORIZON™ Fenestrated Screws (with or without SEXTANT™ or LONGITUDE™ instrumentation) are intended for posterior, non-cervical fixation 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, tumor and/or trauma (i.e., fracture or dislocation), spinal stenosis, curvatures (i.e., scoliosis, kyphosis, or lordosis), pseudarthrosis, and/or failed previous fusion.

When used in conjunction with Medtronic HV-R™ Fenestrated Screw Bone Cement or Kyphon™ XPEDE™ Bone Cement, the CD HORIZON™ Fenestrated Screws are 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. CD HORIZON™ Fenestrated Screws augmented with either Medtronic HV-R™ Fenestrated Screw Bone Cement or Kyphon™ XPEDE™ Bone Cement are for use at spinal levels where the structural integrity of the spine is not severely compromised.

KYPHON™ Xpede™ Bone Cement is indicated for the treatment of pathological fractures of the vertebral body due to osteoporosis, cancer, or benign lesions a cementoplasty (i.e. kyphoplasty or vertebroplasty) procedure. It is also indicated for the fixation of pathological fractures of the sacral vertebral body or ala using sacral vertebroplasty or sacroplasty. Cancer includes multiple myeloma and metastatic lesions, including those arising from breast or lung cancer, or lymphoma. Benign lesions include hemangioma and giant cell tumor. Pathological fracture may include a symptomatic microfracture (as documented by appropriate imaging and/or presence of a lytic lesion) without obvious loss of vertebral body height.

When used in conjunction with CD HORIZON™ Fenestrated Screws, KYPHON™ Xpede™ bone cement 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. CD HORIZON™ Fenestrated Screws augmented with KYPHON™ Xpede™ Bone Cement are for use at spinal levels where the structural integrity of the spine is not severely compromised.

Kyphon Xpede™ Bone Cement is self-curing PMMA based (high viscosity, radiopaque) bone cement. Kyphon Xpede™ Bone Cement is provided sterile in two components: 20 grams of powder and nine grams of liquid. The powder contains methylmethacrylate-styrene co-polymer, barium sulfate as a radiopacifier, and di-benzoyl peroxide as an initiator. This liquid contains methylmethacrylate monomer, N, N dimethyl-p-toluidine as a promoter and hydroquinone as a stabilizer. The powder and liquid components are mixed, in the provided liquid-to-powder proportions, into a homogenous paste, to initiate the polymerization reaction of monomer into polymer.

Medtronic HV-RTM Fenestrated Screw Cement is self-curing PMMA based (high viscosity, radiopaque) bone cement. Medtronic HV-RTM Fenestrated Screw Cement is provided sterile in two components: 20 grams of powder and nine grams of liquid. The powder contains methylmethacrylate-styrene co-polymer. barium sulfate as a radiopacifier, and di-benzoyl peroxide as an initiator. This liquid contains methylmethacrylate monomer, N, N dimethyl-p-toluidine as a promoter and hydroquinone as a stabilizer. The powder and liquid components are mixed, in the provided liquid-to-powder proportions, into a homogenous paste, to initiate the polymerization reaction of monomer into polymer.

The CD HORIZON™ Fenestrated Screw Set consists of a variety of cannulated multi-axial screws (MAS) with fenestrations offered in diameters ranging from 4.5mm to 10.5mm, with lengths ranging from 30-100mm based on CD HORIZON™ LEGACY™ and CD HORIZON™ SOLERA™ implants contained in the CD HORIZON™ Spinal System. The CD HORIZON™ Fenestrated Screws are specifically designed to connect to 4.75mm, 5.5mm, and 6.0mm diameter rods and associated connecting components contained within the CD HORIZON™ Spinal System. The screws contain six fenestrations near the distal tip of the screw which provides a controlled means to deliver a small amount of polymethylmethacrylate (PMMA) bone cement into a targeted vertebral body. These implants may also serve as traditional pedicle screws when used without bone cement. These screws are provided non-sterile.

The provided text describes specific medical devices (KYPHON™ Xpede™ Bone Cement, CD HORIZON™ Fenestrated Screw Set) and their regulatory clearance (K171938). The document is a 510(k) summary, which focuses on demonstrating substantial equivalence to predicate devices, rather than describing a study with acceptance criteria to prove device performance in a clinical setting in the way an AI/ML device would be evaluated for diagnostic accuracy.

Therefore, the requested information (acceptance criteria, study details for proving device meets criteria, sample sizes, expert involvement, MRMC study, standalone performance, ground truth types and establishment methods) is not applicable to this document.

This document refers to biocompatibility and mechanical testing for physical devices (bone cement and screws), which are evaluated against industry standards and by comparison to predicate devices, not through performance metrics like sensitivity, specificity, or AUC as one would expect for an AI/ML device.

Here's how the requested points relate to the provided text:

1. A table of acceptance criteria and the reported device performance: This document doesn't present acceptance criteria and device performance in the context of diagnostic accuracy or clinical outcomes for an AI/ML device. Instead, it describes:

   • Biocompatibility: The materials of the CD HORIZON™ Fenestrated Screws (titanium alloy, titanium, cobalt-chromium-molybdenum alloy) have a long clinical history of safe and effective use, so no additional biocompatibility testing was required. The Xpede™ Bone Cement is identical to the predicate and uses equivalent implant materials, sterilization methods, and bacterial endotoxin testing (20 EU/ml pyrogen limit).
   • Mechanical Testing:
     • Axial Pull Out Testing (ASTM F543-07): CD HORIZON™ Fenestrated Screws augmented with the subject Kyphon Xepede™ Bone Cement were compared to those augmented with Medtronic HV-R™ Fenestrated Screw Cement. Result: Pull-out strength of the screws was equivalent.
     • Flow Rate Analysis: Compared Kyphon Xpede™ Bone Cement to Medtronic HV-R™ Fenestrated Screw Cement regarding injection and flow characteristics using fluoroscopic imaging. Result: Flow rates of the subject and predicate cements were substantially equivalent.

2. Sample sizes used for the test set and the data provenance: Not applicable. The testing described (biocompatibility, mechanical testing) refers to material and mechanical properties, not a clinical "test set" for diagnostic performance.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable, as no diagnostic accuracy study requiring expert adjudication is described.

4. Adjudication method: Not applicable.

5. If a multi-reader multi-case (MRMC) comparative effectiveness study was done: Not applicable.

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: Not applicable. The "ground truth" here relates to established material properties and mechanical performance standards, not clinical diagnoses.

8. The sample size for the training set: Not applicable, as this is not an AI/ML device.

9. How the ground truth for the training set was established: Not applicable.

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