Related Experiment Video
Updated: Jul 17, 2026
08:15
Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
Three-dimensional virtual modeling for lower limb deformity correction over intramedullary nail.
Michal Goetz1,2, Yair Gortzak3, Lior Yosef Shabtai4
1Pediatric Orthopedic Department, Dana-Dwek Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
Frontiers in Surgery
|July 16, 2026
Summary
3D virtual surgical planning and patient-specific cutting guides improve accuracy in correcting complex lower-limb deformities in pediatric patients using intramedullary nails. This innovative approach enhances surgical precision and patient outcomes.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Pediatric Orthopedics
Background:
- Intramedullary nails (IMNs) are established for limb lengthening and deformity correction.
- Acute deformity correction over IMNs presents significant technical challenges.
- Advanced planning tools are needed for complex pediatric limb deformities.
Purpose of the Study:
- To describe the application of 3D virtual surgical planning.
- To detail the use of patient-specific 3D-printed cutting guides.
- To manage complex lower-limb deformities in pediatric patients using IMNs.
Main Methods:
- Retrospective study of 21 pediatric patients (mean age 12 years).
- Utilized 3D virtual models for preoperative planning.
- Employed patient-specific cutting guides for surgical correction with IMNs.
Main Results:
- Excellent correction (≤5° residual angulation) achieved in 83% of extremities.
- Acceptable correction (6-10° residual angulation) in 17%.
- Mean time to union was 8.5 weeks; no major complications occurred.
Conclusions:
- 3D virtual planning and patient-specific cutting guides are effective adjuncts.
- This approach enhances accuracy in preoperative planning.
- Facilitates precise and controlled surgical execution for pediatric lower-limb deformities.
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