Feasibility of Robotic Multiport Cochlear Implantation – Evaluation in an Ex-Vivo Model
2018
Objective: Robotic cochlear implantation requires visualization and potentially manipulative assistance during the electrode-array insertion process. This study investigates the feasibility of cochlear implant electrode-array insertion through three robotically drilled middle ear access tunnels.
Methods: Three tunnels targeting the round window were planned and drilled in four human cadaveric ear specimens using a surgical robotic system. Two tunnels passed through the facial recess, whereas one tunnel was planned su-prameatal. The electrode-array was inserted into the cochlea on four heads through the superior facial recess tunnel. Endoscopic visualization of the insertion process was provided through the inferior facial recess tunnel. Manipula-tive assistance was provided through the suprameatal tunnel.
Results: All tunnels could successfully be planned and drilled. Successful insertion was achieved in all specimens in under 15 minutes.
Conclusions: Electrode-array insertion with a multi-port approach is feasible.
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