An Assistive Image-Guided Surgical Robot System Using O-Arm Fluoroscopy for Pedicle Screw Insertion: Preliminary and Cadaveric Study

• DOI: 10.1227/neu.0b013e3181fa7e42
• Publication Date: 2010-11-01T07:25:02Z
• Authors: Sungmin Kim; Jaeheon Chung; Byung-Ju Yi; Young Soo Kim
• Keywords: Cadaveric spasm; Biplane; Navigation System

The biplane fluoroscopy guided robot system (BFRS) was developed for surgical robotic systems, minimally invasive surgeries, and cooperative as well enhanced planning navigation with preoperative intraoperative image data.To propose a novel percutaneous pedicle screw insertion.The BFRS consists of an O-shaped fluoroscope (O-arm), operating system, assistive robot. Each part the has role in conducting placements. To evaluate accuracy, each analyzed, to assess safety feasibility insertions BFRS, cadaveric studies involving 14 levels thoracic lumbar spine regions were conducted on 2 cadavers.Errors within entire evaluated. accuracy generating coordinates using O-arm images 0.30±0.15 mm. demonstrated duplication value 4.97 μm RMS 0.358 mm RMS. Total error 1.38±0.21 results show that inserted pedicular screws adequately located no unexpected malpositioning screws. axial angle difference between planned postoperative data 2.45±2.56°, sagittal 0.71±1.21°.The might be helpful improving insertion procedures. In future, we will attempt improve reliability determine new clinical applications BFRS.