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Updated: Jun 6, 2026
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Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
A semi-automatic method for positioning a femoral bone reconstruction for strict view generation
Federico Milano1, Lucas Ritacco, Adrian Gomez
1Laboratory of Complex Systems, Department of Computer Science, FCEyN, University of Buenos Aires, Argentina. fmilano@ieee.org
Summary
This study introduces a semi-automatic method for positioning the femur after 3D reconstruction from CT scans. This technique reduces patient positioning biases, enabling more accurate bone measurements and comparisons.
Area of Science:
- Medical imaging
- Orthopedics
- Biomechanical analysis
Background:
- 2D femoral bone measurements are prone to patient positioning biases.
- Accurate and repeatable bone measurements are crucial for diagnosis and treatment monitoring.
- Standardized imaging views are needed for reliable inter- and intra-patient comparisons.
Purpose of the Study:
- To present a semi-automatic method for femoral bone positioning after 3D image reconstruction.
- To overcome patient positioning biases in 2D femoral bone measurement techniques.
- To enable accurate inter- and intra-patient comparisons of femoral bone images.
Main Methods:
- Semi-automatic method for femoral bone positioning.
- 3D image reconstruction from Computed Tomography (CT) images.
- Alignment of bone reconstruction to a standard reference frame.
- Generation of new tomographic slices for unbiased measurements.
Main Results:
- Established a method for precise femoral bone positioning.
- Enabled the definition of strict axial, longitudinal, and anterior-posterior views.
- Facilitated unbiased measurements on generated tomographic slices.
- Allowed for accurate inter-patient and intra-patient comparisons.
Conclusions:
- The developed method overcomes patient positioning biases in femoral bone analysis.
- This technique supports accurate and repeatable bone measurements for diagnosis and follow-up.
- It has the potential to improve the diagnosis and monitoring of bone deformities.
