Preoperative Three-Dimensional, Multiplanar Reconstruction Simulation, and Virtual Laminectomy Using VINCENT Software

• Published in: Journal of Spine Research Vol. 12; no. 9; pp. 1110 - 1116
• Main Authors: Nozawa, Satoshi, Akiyama, Haruhiko, Iwai, Chizuo, Yamada, Kazunari, Fushimi, Kazunari
• Format: Journal Article
• Language: Japanese
• Published: The Japanese Society for Spine Surgery and Related Research 20.09.2021; 一般社団法人 日本脊椎脊髄病学会
• Subjects: medical image analysis system; surgical plan; virtual laminectomy; 仮想椎弓切除; 医療画像解析ソフト; 手術計画
• ISSN: 1884-7137; 2435-1563
• DOI: 10.34371/jspineres.2021-0013

Introduction: Although navigation in spinal surgery is effectively utilized, meticulous preoperative planning is still required for safe and successful surgery. We introduced a meticulous planning method using a three-dimensional (3D) image analysis system.Methods: Cases were analyzed using high-volume data, such as thin-slice CT images, using the software SYNAPS VINCENT (Fuji film). Multiplanar reconstruction (MPR), 3D image preparation, and virtual bone resection were conducted. Using the MPR images of patients with scoliosis, we measured the length and diameter of the pedicle screws (PS). The normally (Du) and carefully (Dm) measured diameters of 20 PS were compared statistically.Results: The average difference between Du and Dm was 0.69±0.09 (p < 0.01). The diameter of Dm was significantly increased compared to Du. Using VINCENT, we could accurately assess screw trajectory and bone condition before surgery. Additionally, we could effectively perform virtual laminectomy, foraminotomy, and PS insertion to correct a severely deformed spine.Conclusions: Based on careful planning using a 3D image analysis system, we could successfully perform a complex surgical procedure with little to no complications. This software is beneficial to spine surgeons and, with careful planning, has the potential to aid in reducing the intraoperative risk of vessel and nerve damage.