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Technical Data Sheet: Total Shoulder Arthroplasty

Scan and anatomy requirements, supported cases, outputs and charges for shoulder arthroplasty cases.

This data sheet is for surgeons and clinical teams preparing shoulder arthroplasty cases. It lists the scan and anatomy requirements, supported cases, platform outputs and the case charges policy.


Case Criteria

Anatomical Requirements

To ensure a successful case for planning and guide creation, the following anatomical requirements must be met:

Scapula Requirements

  • Full visibility of the glenoid cavity.

  • Clear visualization of the posterior aspect (trigonum).

  • At least 50% of the inferior length of the scapula must be included.

Humerus Requirements

  • A full humeral head must be present.

  • At least one-third of the overall humeral length must be included.

If only one of the bones (scapula or humerus) is available, you can plan and get a guide for that part only. If both bones are present, a full surgical plan is supported.


Supported Case Types & Region

  • Left or Right Shoulder

  • Total Shoulder Arthroplasty (Anatomical)

  • Reverse Shoulder Arthroplasty

  • Hemiarthroplasty


Unsupported Case Types

  • Cases involving non-shoulder joints (e.g., spine, elbow).

  • CT scans with severe metal artifacts that obscure bone structures and cannot be segmented.

  • Revision surgeries with large, existing implants that obscure glenoid or humeral landmarks.

  • Partial datasets missing the required anatomical landmarks listed above.


STL Segmentation Guidelines

Optional upload of .STL segmentation is accepted under the following conditions:

  • .STL includes a complete glenoid or humeral head (or both).

  • Scapula meets the anatomical visibility requirements above.

  • Humerus must include a full head and at least one-third of its length.

  • STL files should not show pre-implanted components or artifacts unless for review only.


CT Imaging Requirements

Parameter

Requirement

Slice Thickness

≤ 1.5 mm

Spacing Between Slices

≤ 1.5 mm

Pixel Spacing

≤ 1.0 mm

Motion Artifact

Minimize; patient must remain still

Metal Artifact

If present, upload your own segmentation as STL


Platform Outputs

After approval, the case outputs include:

  • Anatomical Model Files:

    • Cropped region focused on implant site (.STL)

    • Full anatomy model (.STL)

  • Guide Files:

    • Glenoid guide (.STL) if scapula is included

    • Humerus guide (.STL) if humerus is included

  • Case Report Document:

    • .PDF file summarizing surgical planning, measurements, and device design


Case Charges Policy

Condition

Charge Applied

Case rejected by CustoMED (technical/incomplete)

❌ No Charge

Case cancelled or rejected by user prior to approval

❌ No Charge

Case submitted for validation or training purposes

❌ No Charge

Case fully approved, with guides

✅ Charged


Compatibility Statement

This module is not a replacement for clinical decision-making. CustoMED software does not provide therapeutic recommendations. All final planning decisions - including implant design, positioning, and surgical execution - must be made and reviewed by a licensed healthcare professional. A healthcare professional must always rely on their own professional clinical judgment when deciding whether to use any product in the treatment of a specific patient.

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