High-precision Restoration System for Fracture Reduction and Bone Deformity Correction

We developed a virtual reality-based surgical navigation of the restoration system for fracture reduction and bone deformity correction. By using a patient-specific 3D model instead of CT in our navigation, more precise restoration of bone fracture and deformation could be achieved with reduced radiation exposures.

Researchers

Ho-Gun Ha, Seongpung Lee, Jongho Chien, Gukyeong Han

Papers

Perspective pinhole model with planar source for augmented reality surgical navigation based on C-arm imaging
Ha H, Jeon S, Lee S, Choi H, Hong J
International Journal of Computer Assisted Radiology and Surgery, 13:1671-1682, July 2018

Fundings

Development of high-precision modular restoration system for fracture reduction and bone deformity correction
Ministry of Trade, Industry and Energy

Patient-specific 3D model without CT

● Virtual reality-based surgical navigation requires a pre-operative image of a patient such as CT/MRI.

● By replacing CT which requires a high cost and radiation exposure, a patient-specific 3D model was generated from Statistical Shape Model (SSM) with a limited number of X-ray images of the patient

Workflow of the patient-specific 3D model without CT image

1-1

Virtual reality-based surgical navigation

● Virtual reality-based surgical navigation can provide a relative 3D position between fractured bones intuitionally.

● Key information such as length, angle, and rotation (LAR) which is a desired value for reduction was displayed with a high accuracy.

● Virtual reality-based surgical navigation integrated with high-precision restoration system.

Relation between coordinates in the surgical navigation

3

Demonstration of the virtual reality-based surgical navigation