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Robotic Cochlear Implantation for Direct Cochlear Access
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Image-guided cochlear access by non-invasive registration: a cadaveric feasibility study.

Jiang Wang1, Hongsheng Liu2, Jia Ke1

  • 1Department of Otorhinolaryngology - Head and Neck Surgery, Peking University Third Hospital, Peking University, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.

Scientific Reports
|October 28, 2020
PubMed
Summary

This study shows that image-guided cochlear implant surgery using a non-invasive dental registration method is accurate and safe. This technique preserves crucial facial nerves and ossicular structures, improving surgical outcomes.

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Area of Science:

  • Neurosurgery
  • Otolaryngology
  • Medical Imaging

Background:

  • Image-guided surgery aims to enhance precision in cochlear implant procedures.
  • Potential benefits include reduced mastoidectomy volume, faster recovery, and improved safety.

Purpose of the Study:

  • To evaluate the safety and effectiveness of image-guided cochlear implant surgery using a novel non-invasive registration method.
  • To assess the accuracy of this technique in a cadaveric model.

Main Methods:

  • Development of a visual positioning frame utilizing maxillary dentition for non-invasive registration.
  • Conducting a cadaveric tunnel experiment on 5 specimens (8 cases).
  • Measuring accuracy of entry and target points, and proximity to critical anatomical structures.

Main Results:

  • High accuracy achieved for entry point (0.471 ± 0.276 mm) and target point (0.671 ± 0.268 mm).
  • Significant distance maintained from the facial nerve (0.790 ± 0.709 mm) and ossicular chain (1.960 ± 0.630 mm).
  • Complete preservation of facial nerves, tympanic membranes, and ossicular chains.

Conclusions:

  • The non-invasive registration method meets accuracy requirements for cochlear implant surgery.
  • This technique shows promise for application in various neurosurgical and skull base procedures.
  • The method offers a safe and accurate approach to image-guided cochlear implantation.