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Updated: Jun 4, 2026
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Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
Accuracy of corrective osteotomy using a custom-designed device based on a novel computer simulation system
Kunihiro Oka1, Tsuyoshi Murase, Hisao Moritomo
1Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, 2-2, Yamada-oka, Suita, Osaka, 565-0871, Japan. oka-kunihiro@umin.ac.jp
Summary
This study validates a new 3D computer simulation system for extremity deformity correction. The system, combined with custom surgical guides, demonstrated high accuracy (under 1.0 mm and 1.0°) in cadaver bone tests.
Area of Science:
- Orthopedic surgery
- Medical simulation
- Biomedical engineering
Background:
- Developed a novel computer program for 3D anatomical deformity correction simulation.
- Integrated an operative method with custom surgical devices for simulation realization.
Purpose of the Study:
- Investigate the feasibility and accuracy of the developed 3D simulation system.
- Validate the system's performance using cadaver bones.
Main Methods:
- Utilized twenty dry forearm bones for accuracy assessment.
- Evaluated template setting location error against preoperative simulation.
- Performed mock corrective osteotomy using custom templates.
Main Results:
- Templates demonstrated a snug fit on bone surfaces.
- Mock osteotomies were successfully performed as simulated.
- Template setting errors were below 1.0 mm and 1.0°.
- Simulation system accuracy in mock operations was also below 1.0 mm and 1.0°.
Conclusions:
- The 3D simulation system exhibits sufficient feasibility and accuracy.
- The system enables precise anatomical deformity correction of extremities.
