Abstract
PurposeTo determine the workspace through an anatomical dimensional study of the skull base to further facilitate the design of the robot for endonasal endoscopic transsphenoidal (EET) surgery.MethodsThere were 120 cases having a paranasal sinus CT scan in the database. The internal volumes of the nasal cavities (NC), the volumes of the sphenoid sinuses (SS), and the distance between the anterior nasal spine and base of the sellar (d-ANS-BS) were measured.ResultsThe Pearson correlation coefficient (PCC) between the relevant distances and the volumes of the right NC was 0.32; between the relevant distances and the volumes of the left NC was 0.43; and between the relevant distances and volumes of NC was 0.41; with a statistically significant difference (p < 0.001). All PCCs had a statistically significant meaningful difference (p < 0.05).ConclusionThe volume of NCs were significantly correlated with distances (p < 0.05). The safest and shortest distance to guide the robotic arm length in the EET approach could be represented by d-ANS-BS. This result was also used as primary information for further robotic design.
Highlights
To determine the workspace through an anatomical dimensional study of the skull base to further facilitate the design of the robot for endonasal endoscopic transsphenoidal (EET) surgery
Because the Pearson correlation coefficients were positive, the volumes were assumed to be a constraint on the robotic workspace for the EET approach [15,16,21] (Figure 4)
Regarding the EET approach, the volumes of the nasal cavities were significantly correlated with distances
Summary
The primary objective of this study was to design an anatomical dimensional study of the volume and distance around the skull base area for a robotic system for use with the EET approach
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