A Novel Instrument for Endoscopic Ear Surgery With a Steerable Flexible Tip: A Pediatric Anatomical Validation Study

Autor: Bryan Maguire, James M. Drake, Adrian L. James, Peter Francis, Lueder A. Kahrs, Nichtima Chayaopas, Kyle W. Eastwood, Arushri Swarup
Rok vydání: 2021
Předmět:
Zdroj: Otology & Neurotology. 42:e1683-e1690
ISSN: 1537-4505
1531-7129
DOI: 10.1097/mao.0000000000003237
Popis: HYPOTHESIS This study compares the reaching ability of two classes of transcanal endoscopic ear surgery (TEES) instruments when operating on difficult to access anatomical targets; two novel instruments with steerable flexible tips (SFT-A and SFT-B) and suction capability are compared with standard commercially available tools. BACKGROUND TEES surgeons identified the need for a new surgical instrument that can enable accessibility of all areas visualized by the endoscope. This motivated the development of the two instrument prototypes. METHODS Six temporal bone models were 3D printed based on CT data from five cholesteatoma patients. Four anatomical targets were marked on each model. Using these targets, the reaching ability while using four standard TEES instruments were compared with the SFT-A and SFT-B prototypes by five surgeon participants. Results were analysed to compare success rates of contacting each target using each tool by fitting four Firth's logistic regression models. This calculated the statistically significant differences (p
Databáze: OpenAIRE