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CD Horizon™ Fenestrated Screw Set
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, or lordosis), pseudarthrosis, and/or failed previous fusion.
Additionally. CD Horizon™ Fenestrated Screws may be used for immobilization when used for trauma (e.g., fracture or dislocation) with the usage of bone graft material left to the surgeon's discretion.
When used in conjunction with Kyphon™ HV-R™ Bone Cement or Medtronic HV-R™ Fenestrated Screw Cement or Kyphon™ Xpede™ Bone Cement, 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. CD Horizon™ Fenestrated Screws augmented with Kyphon™ HV-R™ Bone Cement or Medtronic HV-R™Fenestrated Screw Cement or Kyphon™ Xpede™ Bone Cement are for use at spinal levels where the structural integrity of the spine is not severely compromised.

CD Horizon™ Spinal System
The CD Horizon™ Spinal System with or without Sextant™ instrumentation is 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, trauma (i.e. fracture or dislocation), spinal stenosis, curvatures (i.e. scoliosis, kyphosis), tumor, pseudarthrosis, and/or failed previous fusion. Except for hooks, when used as an anterolateral thoracic/lumbar system, the CD Horizon™ Spinal System titanium, cobalt chrome, and stainless steel implants may also be used for the same indications as an adjunct to fusion.
With the exception of DDD, CD Horizon™ Legacy™ 3.5mm rods and associated components may be used for indications in skeletally mature patients as an adjunct to fusion. The 3.5mm rods may be used for the specific pediatric indications noted.
When used for posterior non-cervical pedicle screw fixation in pediatric patients, CD Horizon™ Spinal System titanium, cobalt chrome, and stainless steel implants are indicated as an adjunct to fusion to treat progressive spinal deformities (i.e. scoliosis, kyphosis) including idiopathic scoliosis, neuromuscular scoliosis, and congenital scoliosis. Additionally, the CD Horizon™ Spinal System is intended to treat pediatric patients diagnosed with the following conditions:
spondylolisthesis/ spondylolysis, fracture caused by tumor and/or trauma, pseudarthrosis, and/or failed previous fusion. These devices are to be used with autograft. Pediatric pedicle screw fixation is limited to a posterior approach.
The CD Horizon™ PEEK rods are intended to provide posterior supplemental fixation when used with an interbody fusion cage for patients diagnosed with DDD. These DDD patients may also have
up to Grade 1 spondvlolisthesis or retrolisthesis at the involved level. This device is intended for 1-2 level use in the lumbosacral spine (L2 – S1) in skeletally mature patients. Devices are intended for use with an interbody fusion cage at the instrumented level and is not intended for stand-alone use. The CD Horizon™ Spire™ plate is a posterior, single-level, non-pedicle supplemental fixation device intended for use in the non-cervical spine (T1-S1) as an adjunct to fusion in skeletally mature patients. It is intended for plate fixation/attachment to spinous processes for the purpose of achieving supplemental fixation in the following conditions: DDD, spondylolisthesis, trauma, and/or tumor.
To achieve additional levels of fixation, CD Horizon™ Spinal System rods may be connected to the Vertex™ Reconstruction System with the Vertex™ rod connector. Refer to the Vertex™ Reconstruction System package insert for a list of Vertex™ indications.

CD Horizon™ Fenestrated Screw Set
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.
CD Horizon™ Fenestrated Screws are specifically designed to connect to appropriate rods and associated connecting components contained within the CD Horizon™ Spinal System. Refer to the CD Horizon™ Spinal System package insert for information regarding those implants. Care should be taken so the correct components are used in the spinal construct.
CD Horizon™ Fenestrated Screw Set implant components are fabricated from medical grade titanium and/or medical grade titanium alloy and/or medical grade cobalt-chromium-molybdenum alloy. Never use stainless steel and titanium implant components in the same construct.
Do not use CD Horizon™ Fenestrated Screw implants with components from any system other than the CD Horizon™ Spinal System.

CD Horizon™ Spinal System
The CD Horizon™ Spinal System consists of a variety of shapes and sizes of rods, hooks, screws, Crosslink™ Plates, staples, and connecting components, as well as implant components from other Medtronic spinal systems which can be rigidly locked into a variety of configurations, with each construct being tailor-made for the individual case.
CD Horizon™ Spinal System implant components are fabricated from medical grade stainless steel, medical grade titanium, titanium alloy, medical grade cobalt-chromium-molybdenum alloy, or medical grade PEEK Optima-LT1.

The provided text does not describe a study involving an AI/ML device or its acceptance criteria. Instead, it is an FDA 510(k) clearance letter for a Class II medical device (Thoracolumbosacral Pedicle Screw System), specifically the Medtronic CD Horizon™ ModuLeX™ FNS Screw Set and CD Horizon™ ModuLeX™ Spinal System.

The document discusses:

• Device Description: Spinal screws, rods, and associated components used for spinal fixation.
• Indications for Use: Various spinal conditions like degenerative disc disease, spondylolisthesis, trauma, etc., for which the device can be used as an adjunct to fusion, or to restore spinal column integrity for a limited time in tumor patients when augmented with bone cement.
• Predicate Devices: The new devices are compared to previously cleared Medtronic spinal systems (K201362 and K221244) to establish substantial equivalence.
• Performance Data: The performance data primarily consists of mechanical/bench testing conducted according to ASTM standards (ASTM F1798 and ASTM F1717) to demonstrate that the new device has similar design features and does not present a new worst-case compared to the predicate devices. A risk analysis was also performed.

Therefore, I cannot provide the requested information regarding acceptance criteria, study details, expert review, or ground truth for an AI/ML device, as this information is not present in the provided document. The document focuses on demonstrating the mechanical equivalence of a physical implantable medical device to existing predicate devices, not the performance of an AI/ML algorithm.

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