This data sheet is for surgeons and clinical teams preparing Hip Resurfacing Arthroplasty (HRA) 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:
Pelvis Requirements
Full visibility of the pelvis, including both acetabula and the pubic symphysis.
Complete acetabular rim and medial acetabular wall on the operating side.
Femur Requirements
Full visibility of the proximal femur on the operating side, including the complete femoral head, neck, greater trochanter and lesser trochanter.
Inclusion of the distal femur at the knee, including the femoral condyles, for femoral version and leg length measurements.
Inclusion of the opposite hip, including the proximal femur down to the lesser trochanter, for leg length and offset comparison.
The guide is designed on the femoral head of the operating side. The pelvis is planned without a guide (Plan only).
Supported Case Types & Region
Left or Right Hip
Hip Resurfacing Arthroplasty (HRA)
Medial Direct Anterior or Posterior approach
Femoral guide types: K-Wire Fixation PSI or Diathermy Marking Slot PSI
Plan and PSI, or Plan Only (no guide), selected in Case Output Configuration
Unsupported Case Types
Cases involving non-hip joints (e.g., knee, shoulder, spine).
CT scans with severe motion or metal artifacts that obscure pelvic or femoral landmarks and prevent reliable segmentation.
Existing hip implants on the operating side that obscure the femoral head or acetabulum.
Partial datasets missing critical anatomical landmarks listed above (e.g., incomplete femoral head, neck or acetabulum).
STL Segmentation Guidelines
Optional upload of .STL segmentation is accepted under the following conditions:
Pelvis STL includes both acetabula and the pubic symphysis.
Femur STL includes the femoral head, neck and trochanters, and the distal femur at the knee.
STL files should not include pre-implanted components or fixation hardware, unless explicitly uploaded for reference only.
Pelvis and each femur should be provided as separate STL files.
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
Femur anatomy model (.STL)
Guide Files
Femoral head guide (.STL), when Plan and PSI is selected
Case Report Document
.PDF plan report summarizing the femur and pelvis plans and their measurements
Delivery Note
.PDF delivery note listing the case outputs
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.