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The VERTE-STACK® Spinal System is a vertebral body replacement device intended for use in the thoracolumbar spine (T1-L5) to replace a collapsed, damaged, or unstable vertebral body due to tumor or trauma (i.e., fracture). The VERTE-STACK® Spinal System is to be used with supplemental fixation. Specifically, the VERTE-STACK® device is to be used with the Medtronic ZPLATE II™ Anterior Fixation System, the DYNA-LOK CLASSIC® Spinal System, the VANTAGE® Anterior Fixation System, the TSRH® Spinal System, the CD HORIZON® Spinal System and/or the GDLH® Spinal System. Additionally, the VERTE-STACK® device is intended to be used with bone graft.

The VERTE-STACK® device consists of hemi-cylindrical center cages of various lengths and diameters, as well as hemi-cylindrical add on cages of various lengths, diameters and angulation. The assembled VERTE-STACK® device consists of three components (one hollow center cage, and two hollow add-on cages). The VERTE-STACK® components can be rigidly locked into a variety of configurations, with each construct being tailor-made for the individual case.

The design of the VERTE-STACK® device includes a variety of stackable components of different sizes and heights. The stackable components are designed to suit the individual patient pathology.

The VERTE-STACK® device may be used individually, or two or more may be stacked together in order to accommodate the individual anatomical requirements of the vertebral space created by the corpectomy.

The VERTE-STACK® Spinal System implant components are made of medical grade PEEK-OPTIMA LT1 along with a marker made from either Tantalum or titanium. Alternatively, VERTE-STACK® Spinal System may be manufactured from titanium alloy.

The VERTE-STACK® Spinal System must be used with additional anterior and/or posterior spinal instrumentation to augment stability. VERTE-STACK® constructs manufactured from PEEK may be used with stainless steel or titanium supplemental fixation devices. Titanium VERTE-STACK® constructs may not be used with stainless steel supplemental fixation devices.

The purpose of this submission was to modify the geometry of the implants and to include additional sizes into the existing VERTE-STACK® Spinal System.

The provided text describes a 510(k) summary for the VERTE-STACK® Spinal System, focusing on its substantial equivalence to previously cleared devices. It does not contain information about acceptance criteria, device performance studies with sample sizes, expert involvement, adjudication methods, or specific details about standalone or MRMC studies for AI devices.

Instead, the submission states that "Documentation, including mechanical test results, was provided which demonstrated that the subject VERTE-STACK® Spinal System components are substantially equivalent to the previously cleared VERTE-STACK® Spinal System (K052931, SE 11/13/2005; and K062133, SE 09/26/2006)." This implies that the acceptance criteria and assessment of equivalence are based on mechanical properties rather than clinical performance evaluated with the types of studies you've asked about (e.g., those involving AI, ground truth, experts, etc.).

Therefore, I cannot provide a table of acceptance criteria and reported device performance or answer the specific questions related to AI studies, expert-established ground truth, or adjudication methods, as this information is not present in the provided text. The submission is for a physical medical device (vertebral body replacement) and not an AI/software device.

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