Novel Positioning System for Vantage Stereotactical Frame Enabling Accurate and 2 Hands Frame Placement.

Abstract

Accurate placement of stereotactic frames, such as the Leksell Vantage frame, is crucial for optimal stereotactic procedures. Conventional mounting methods for the Vantage frame, often involving adhesive straps, can be imprecise, complicated, time-consuming, and require at least 2 medical staff members. This study aimed to design and investigate a novel, universal positioning system suitable for the Vantage frame. A prototype of a positioning system was developed, consisting of inflatable silicone cushions with a composite structure, fixation edges, and direct connection to hand pumps. The prototype was tested in a clinical environment at the Lithuanian University of Health Sciences Neurosurgery department with 20 patients, divided into 2 groups with 10 patients in each group. Group A had the frame applied using the manufacturer's recommendations, while Group B used the new prototype. The procedure time and personnel involved were recorded. The study demonstrated that the newly developed prototype enabled successful stereotactic frame placement with the participation of only 1 neurosurgeon, compared to the 2 required with the standard method. Furthermore, the average procedure time was significantly shorter when using the prototype (6 minutes and 20 seconds) compared to the standard procedure time (8 minutes and 34 seconds). The prototype was also found adaptable to various head sizes. The experimental evaluation indicates that the novel 3-dimensional positioning system for the Leksell Vantage frame effectively reduces the number of personnel needed and shortens the frame placement procedure, potentially leading to more efficient use of neurosurgeons' time and reduced stress for both patients and surgeons.