Abstract
Introduction and importanceThis case report details the first use of Axial 3D printing technology in Northern Ireland for surgical planning and decision making in ENT skull base surgery.Case presentation39 year old male seen at ENT clinic with nasal congestion. CT showed multi-sinus mucosal thickening. Histology reported inverted papilloma polyp. The surgical options were modified Lothrops endoscopic sinus surgery or an open approach of frontal sinuses with osteoplastic flap and septorhinoplasty. A model 3D skull was created by Axial 3D using stereolithography 3D printing technology with photopolymer resin. The tumour was printed in a contrasting colour, which allowed clear visualisation and appreciation of tumour borders and relations to surrounding structures. The patient underwent FESS with modified Lothrops approach, achieving good clearance of polyp.Clinical discussionThe use of a 3D model allowed for visualisation of tumour size and relation to surrounding anatomy, particularly the absence of dural involvement within the fontal sinus. It assisted in surgical planning. The use of the 3D skull was beneficial for patient as it allowed less invasive surgery and therefore shorter recovery. It was beneficial for the hospital organisation as it lowered resource requirements of theatre time, hospital bed days and staff resources. One limitation of the 3D printed skull was that the fine lamellae ethmoid air cells were not shown due to the manufacturing process.ConclusionThe use of 3D printing is becoming increasingly popular as a surgical aid. We found the use of the 3D skull to be useful in individualised surgical planning for endoscopic sinus surgery.
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