# Navigation-Guided Thoracolumbar Transpedicular Instrumentation Using the 7D Flash™ Navigation System (SeaSpine) in a Patient With L1 Vertebral Fracture and Spinal Deformity Secondary to Prior Instrumentation for Idiopathic Scoliosis: A Case Report

## TL;DR

A 63-year-old woman with a history of spinal surgery and a new fracture underwent successful spinal instrumentation using a navigation system to avoid complications.

## Contribution

Demonstrates the use of 7D Flash™ navigation for safe instrumentation in complex spinal revision cases.

## Key findings

- Image-guided navigation enabled accurate screw placement without intraoperative CT.
- The system improved safety and reduced radiation exposure in a patient with prior spinal instrumentation.
- Highlights the utility of navigation in managing anatomical distortions from previous surgeries.

## Abstract

We present the case of a 63-year-old woman with a history of spinal instrumentation for adolescent idiopathic scoliosis who sustained an L1 vertebral body fracture after a fall. The patient exhibited sagittal imbalance and flatback deformity, with significant anatomical distortion from prior surgeries. A posterior thoracolumbar transpedicular instrumentation from T12 to L3 was performed using the 7D Flash™ Navigation System (SeaSpine, Carlsbad, CA, USA). Image-guided navigation allowed for accurate screw placement despite complex anatomy, without requiring intraoperative CT. This case highlights the value of spinal navigation in revision settings, particularly for enhancing safety, reducing radiation exposure, and optimizing outcomes in patients with prior instrumentation.