Introducing Bolt 2.0 — accuracy equivalent to CT-Nav, with UI enhancements for MIS procedures.Product Overview

Traumatic Vertebral Fracture

Emergency stabilization of a T12 fracture — precise, atypical screw trajectories navigated with the C-arm and staff already in the room.

Patient Overview

Age

60 years old

Sex

Male

Diagnosis

T12 fracture

Surgery Details

Procedure

T11-L1 stabilization to restore neurologic function and return to daily activity

Levels with fixation

T11-L1

Fixation type

Pedicle screw fixation

Patient Background and Diagnosis

This patient was a 60-year-old male working on an oil rig when a 400-pound cylindrical pipe fell and struck him on the back. He was transported to the hospital by helicopter. On assessment, he presented with a T12 fracture and an associated neurological deficit — the fracture involved the vertebral body, facets, and pars interarticularis.

Sagittal MRI image of T12 displaying vertebral fracture to the body, pars, and facets
Sagittal MRI image of T12 displaying vertebral fracture to the body, pars, and facets.
Sagittal MRI image showing acute fracture through the T12 vertebral body
Sagittal MRI image showing acute fracture through the T12 vertebral body.

Surgical Treatment

This was a T11-L1 stabilization to restore neurologic function and return the patient to daily activity. The screws at T12 had to follow diverging medial and sagittal trajectories to avoid the fractured elements — the surgeon planned and placed each one under Bolt guidance.

A/P Fluoro image showing final pedicle screw placement
A/P Fluoro image showing final pedicle screw placement. Note the caudal and diverging screw placement at T12 to navigate fracture fragments.
Guiding the pedicle probe using the Bolt Navigation System
Guiding the pedicle probe down the corridor of the planned trajectory using the Bolt Navigation System.

Surgical Experience

In an emergency setting, the surgeon planned and placed each screw precisely using a standard C-arm and the patient's diagnostic imaging — no O-arm, no reference frame, no outside technician. Bolt navigated the atypical trajectory with the staff and equipment already in the room: a practical, low-radiation alternative to legacy navigation for a challenging case.

The Bolt Navigation System attached to the pedicle probe
The Bolt Navigation System is attached to the pedicle probe, providing visual feedback while advancing the instrument.
Intraoperative lateral fluoro image with pedicle screws safely in place
Intraoperative Lateral Fluoro image with pedicle screws safely in place. Noting required diverging screw placement at T12.
Three-month post-op axial CT image
Three-month post-op axial CT image. Bolt enabled precise screw placement while carefully avoiding the fractured anatomy.

Outcome

The patient was discharged four days after surgery with full neurologic function, and returned to full activity in under three months.

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