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Hemiarthroplasty/Conventional Total Application:

• Non-inflammatory degenerative joint disease including osteoarthritis and avascular necrosis.
• Rheumatoid arthritis.
• Correction of functional deformity.
• Fractures of the proximal humerus, where other methods of treatment are deemed inadequate.
• Difficult clinical management problems, including cuff arthropathy, where other methods of treatment may not be suitable or may be inadequate.

Optional use in revision: in some medical conditions (e.g. revision when healthy and good bone stock exists), the surgeon may opt to use primary implants in a revision procedure.

Reverse Application:
Identity Revision Humeral Stem products are indicated for use in patients whose shoulder joint has a grossly deficient rotator cuff with severe arthropathy and/or previously failed shoulder joint replacement with a grossly deficient rotator cuff. The patient must be anatomically and structurally suited to receive the implants and a functional deltoid muscle is necessary.

The Identity Revision Humeral Stem is indicated for primary, fracture, or revision total shoulder replacement for the relief of pain and significant disability due to gross rotator cuff deficiency.

The assembled humeral component may be used alone for hemiarthroplasty or combined with the glenoid component or reverse components for total shoulder arthroplasty (conventional or reverse applications). The humeral components may be used cemented or uncemented (biological fixation).

The Identity Revision Humeral Stems are comprised of titanium alloy. The diameters of the stems range in 1mm increments from 4mm to 18mm in a revision length of 133-134mm. The stem is designed with a distal portion that is cylindrical in shape with a tapered and a proximal portion that is flared, eight-sided shape. The devices have a machine finish distally and a plasma-spray titanium porous coating proximally. To support placement and bone reconstruction in fracture cases, the Identity Revision Humeral Stems feature proximal suture holes as well as etch lines for stem length respect to the native humeral head. The humeral stems employ an oval reverse taper which allows the attachment of either an Identity Humeral Stem Adapter for hemi- and anatomic total shoulder applications or an Identity Humeral Tray for reverse shoulder applications.

I apologize, but the provided FDA 510(k) clearance letter for the "Identity Revision Humeral Stems" does not contain any information about acceptance criteria or a study that proves the device meets those criteria for software-related performance.

This document is for a medical device (humeral stems, which are a type of orthopedic implant) and focuses on the mechanical, material, and design aspects of the device, comparing it to predicate devices to establish substantial equivalence.

Specifically, the "Non-Clinical and/or Clinical Tests Summary & Conclusions" section lists:

• Fatigue Testing
• Range of Motion Analysis
• Magnetic Resonance Imaging (MRI)

It explicitly states: "No animal or clinical testing provided." This reinforces that the clearance is based on bench testing and comparison to existing devices, not on a human-in-the-loop study involving AI or a comprehensive performance study as you've described in your request.

Therefore, I cannot fulfill your request for information regarding:

1. A table of acceptance criteria and reported device performance (for AI-related metrics).
2. Sample sizes for test sets or data provenance.
3. Number of experts, qualifications, or adjudication methods for ground truth establishment.
4. MRMC studies, effect sizes, or standalone algorithm performance.
5. Type of ground truth used (expert consensus, pathology, outcomes data).
6. Sample size for the training set or how its ground truth was established.

This document pertains to a physical orthopedic implant, not a software or AI-driven diagnostic/therapeutic device that would typically involve the types of studies and acceptance criteria you've asked about.

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