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Updated: Jan 30, 2026
08:15
Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
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Contralateral Approach Based on a Preoperative 3-Dimensional Virtual Osteotomy Technique for Anterior Circulation
Haiyong He1, Chuan Chen1, Wensheng Li1
1Department of Neurosurgery, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510630, China.
Summary
Contralateral approaches for anterior circulation aneurysms are feasible with 3D imaging. This technique ensures safe clipping surgery and good patient outcomes with no recurrences.
Area of Science:
- Neurosurgery
- Vascular Neurosurgery
- Neurosurgical techniques
Background:
- Anterior circulation aneurysms pose significant surgical challenges.
- Contralateral approaches offer an alternative surgical strategy.
- Preoperative planning is crucial for successful aneurysm treatment.
Purpose of the Study:
- To review outcomes of 15 patients with anterior circulation aneurysms treated via a contralateral approach.
- To evaluate the utility of individualized surgical simulation using 3D imaging for aneurysm clipping.
Main Methods:
- Retrospective review of 15 patients with anterior circulation aneurysms.
- Preoperative 3D reconstruction and surgical simulation using Mimics software.
- Individualized optimization of cranial bone window and patient head position.
Main Results:
- 17 contralateral aneurysms were analyzed, with varied projections.
- Excellent visual correlation between simulation and operative view (100%).
- All 15 patients achieved good outcomes (mRS ≤ 3) with no recurrences after a mean 13-month follow-up.
Conclusions:
- The contralateral approach is feasible for selected anterior circulation aneurysms in experienced hands.
- Preoperative 3D virtual osteotomy aids in judicious case selection and planning.
- This approach can be performed with acceptable morbidity and good long-term results.
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