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Preoperative interactive virtual simulation applying three-dimensional multifusion images using a haptic device for
Ryosuke Ogura1, Hidemoto Fujiwara2, Manabu Natsumeda2
1Department of Neurosurgery, Brain Research Institute, Niigata University, 1-757 Asahimachi, Chuo-ku, Niigata, 951-8585, Japan. oguryou@bri.niigata-u.ac.jp.
Summary
Presurgical interactive virtual simulation (IVS) using 3D multifusion images improved outcomes for lumbosacral lipoma surgery. This technique enabled safe procedures with no complications and good short-term results in 14 patients.
Area of Science:
- Neurosurgery
- Medical Simulation
- Radiology
Background:
- Lumbosacral lipoma requires preventive surgery to avoid complications and ensure good long-term outcomes.
- Interactive virtual simulation (IVS) using 3D multifusion images and haptic devices is a novel approach to enhance surgical precision.
Purpose of the Study:
- To evaluate the efficacy of presurgical IVS in improving operative outcomes for lumbosacral lipoma untethering surgery.
Main Methods:
- Fourteen patients with lumbosacral lipoma underwent preoperative IVS using 3D multifusion images derived from CT and MRI.
- The IVS involved examining the laminectomy range and lipoma extraction procedure on a workstation with a haptic device.
- Actual surgery was performed after the presurgical simulation.
Main Results:
- All surgeries were performed as planned regarding procedure and laminectomy extent.
- Lipoma resection was sometimes less than preoperatively expected due to intraoperative monitoring.
- No postoperative complications were observed, with a median follow-up of 29 months and no reoperations.
Conclusions:
- Presurgical IVS facilitates safe and effective surgery for various types of lumbosacral lipoma.
- The short-term outcomes are favorable, but long-term monitoring is essential for potential neurological symptoms or re-tethering.

