Efficacy of Atlantoaxial Transarticular Screw Fixation Using Navigation-Guided Drill: Technical Note

Hara, Takeshi; Iwamuro, Hirokazu; Ohara, Yukoh; Matsuoka, Hidenori; Kikuchi, Naoko; Kimura, Takaoki; Arai, Hajime; Mizuno, Junichi

doi:10.1016/j.wneu.2019.10.176

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…In the last decade, the usage of surgical navigation systems for cranial (Eggers et al 2009), neurosurgical (Hara et al 2020;Li et al 2018) or liver surgery (Banz et al 2016) has grown considerably. Navigation systems guide the surgeon intraoperatively by aligning patient-specific data (CT-scan, MRI-scan) to the patient, and by visualizing relevant information on the screen.…”

Section: Introductionmentioning

confidence: 99%

Multimodal markers for technology-independent integration of augmented reality devices and surgical navigation systems

et al. 2022

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Augmented reality (AR) permits the visualization of pre-operative data in the surgical field of view of the surgeon. This requires the alignment of the AR device’s coordinate system with the used navigation/tracking system. We propose a multimodal marker approach to align an AR device with a tracking system: in our implementation, an electromagnetic tracking system (EMTS). The solution makes use of a calibration method which determines the relationship between a 2D pattern detected by an RGB camera and an electromagnetic sensor of the EMTS. This allowed the projection of a 3D skull model on its physical counterpart. This projection was evaluated using a monocular camera and an optical see-through device (HoloLens 2) (https://www.microsoft.com/en-us/hololens/) achieving an accuracy of less than 2.5 mm in the image plane of the HoloLens 2 (HL2). Additionally, 10 volunteers participated in a user study consisting of an alignment task of a pointer with 25 projections viewed through the HL2. The participants achieved a mean error of 2.7 1.3 mm and 2.9 2.9$$^\circ $$ ∘ in positional and orientation error. This study showcases the feasibility of the approach, provides an evaluation of the alignment, and finally, discusses its advantages and limitations.

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