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Section 1: Applicable for the GLOBAL UNITE™ Platform Shoulder System with GLOBAL UNITE™ Standard or Revision/Long Humeral Stem Implants
The GLOBAL UNITE Platform Shoulder System is intended for cemented total or hemi-shoulder arthroplasty in treatment of the following:

• · A severely painful and/or disabled ioint resulting from osteoarthritis or rheumatoid arthritis
• · Fracture of the proximal humerus where the articular surface is severely comminuted, separated from its blood supply or where the surgeon's experience indicates that alternative methods of treatment are unsatisfactory
• · Irreducible 3- and 4-part fractures of the proximal humerus
• · Ununited humeral head fractures
• Avascular necrosis of the humeral head
• · Other difficult clinical problems where shoulder arthrodesis or not acceptable (e.g., revision of a failed primary component)
• Hemi-shoulder arthroplasty is also indicated for:
• · Deformity and/or limited motion
  The GLOBAL UNITE™ Reverse Fracture Epiphyseal Component, in conjunction with components from the existing DELTA XTEND™ Reverse Shoulder System and GLOBAL UNITE Platform Shoulder System, is indicated for use in a grossly rotator cuff deficient glenohumeral joint with severe arthropathy failed joint replacement with a gross rotator cuff deficiency. The patient's joint must be anatomically suited to receive the selected implant(s), and a functional deltoid muscle is necessary to use the device. It is intended for cemented reverse shoulder arthroplasty in treatment of the following:
  · Fracture of the proximal humerus where the articular surface is severely comminuted, separated from its blood supply or where the surgeon's experience indicates that alternative methods of treatment are unsatisfactory
• · Irreducible 3- and 4-part fractures of the proximal humerus
  · Ununited humeral head fractures
  The GLOBAL UNITE Reverse Fracture Epiphyseal Component is only intended for use in the treatment of proximal humeral fractures. Bone preparation instrumentation has not been developed to accommodate its use in a non-fracture press-fit application.
  GLOBAL UNITE Humeral Stems, in conjunction with existing DELTA XTEND Epiphyseal Components, are indicated for use in reverse shoulder arthroplasty in treatment of a grossly deficient rotator cuff joint with severe arthropathy or a previously failed joint replacement with a grossly deficient rotator cuff joint must be anatomically and structurally suited to receive the selected implant(s), and a functional deltoid muscle is necessary to use the device. When used in a total shoulder arthroplasty, the GLOBAL UNITE™ Implants are to be used with DePuy glenoid components. The glenoid components are for cemented use only. GLOBAL UNITE Humeral Implants are for cemented or uncemented use.
  When used in a reverse shoulder arthroplasty, the GLOBAL UNITE and DELTA XTEND™ Humeral Implants are to be used with the HA-coated DELTA XTEND Metaglene Devices. The metaglene implants are intended for uncemented use only with additional screw fixation. The HA-coated DELTA XTEND Humeral Implants are intended for uncemented use only. Porous-coated epiphyses are intended for cemented or uncemented use. GLOBAL UNITE Humeral Implants are for cemented or uncemented use.
  Section 2: Applicable for the GLOBAL UNITE™ Platform Shoulder System with GLOBAL UNITE™ Short Humeral Stem Implants
  GLOBAL UNITE Short Humeral Stem Implants are for uncemented use only. The GLOBAL UNITE Platform Shoulder System with Short Humeral Stem is intended for uncemented total or hemi-shoulder arthroplasty in treatment of the following:
• · A severely painful and/or disabled joint resulting from osteoarthritis or rheumatoid arthritis
• · Other difficult clinical problems where shoulder arthrodesis or resection arthroplasty are not acceptable (e.g. revision of a failed primary component)
• Hemi-shoulder arthroplasty is also indicated for:
• Deformity and/or limited motion
  GLOBAL UNITE Short Humeral Stems, in conjunction with existing DELTA XTEND Epiphyseal Components, are indicated for use in reverse shoulder arthroplasty in treatment of a grossly deficient rotator cuff joint with severe arthropathy or a previously failed joint replacement with a grossly deficient rotator cuff joint. The patient's joint must be anatomically and structurally suited to receive the selected implant(s), and a functional deltoid muscle is necessary to use the device.
  When used in a total shoulder arthroplasty, the GLOBAL UNITE Implants are to be used with DePuy glenoid components. The glenoid components are for cemented use only.
  When used in a reverse shoulder arthroplasty, the GLOBAL UNITE and DELTA XTEND Humeral Implants are to be used with the HA-coated DELTA XTEND Metaglene Devices. The metaglene implants are intended for uncemented use only with additional screw fixation. The HA-coated DELTA XTEND Humeral Implants are intended for uncemented use only. Porous-coated epiphyses are intended for cemented use. GLOBAL UNITE Short Humeral Stem Implants are for uncemented use only.

The Global Unite Platform Shoulder System is comprised of humeral stem, humeral head, suture collar and epiphyseal (anatomical or reverse) components. The subject Global Unite Short Stem is designed to conserve geometry and design features of the predicate Global Unite standard stem while eliminating the tapered distal stem body.

The provided text is a 510(k) premarket notification for a medical device (GLOBAL UNITE™ Platform Shoulder System). It does not describe any acceptance criteria or studies related to AI/algorithm performance. The "Testing Data" section explicitly states:

• Summary of clinical study: "Clinical study was not necessary."
• Summary of animal study: "Animal study was not necessary."
• Summary of non-clinical study: "Biocompatibility evaluation per ISO10993-1. Dimensional and geometrical equivalency analysis, fatigue strength evaluation, tolerance analysis and torque testing are conducted. MRI compatibility evaluation is conducted for MRI labeling."

This document focuses on establishing substantial equivalence to predicate devices based on design, materials, and mechanical testing, which is typical for implantable medical devices like shoulder prostheses. There is no mention of an AI/algorithm component requiring performance evaluation against an acceptance criterion.

Therefore, I cannot fulfill your request for the specific information regarding AI/algorithm acceptance criteria, performance studies, sample sizes, expert ground truth establishment, or MRMC studies, as this information is not present in the provided document.

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