Prospective evaluation of mechanomyography versus triggered electromyography for intraoperative assessment of cortical breaches during instrumented lumbar surgery.

ABSTRACT:

Introduction

Pedicle screws are essential in spinal arthrodesis surgeries but pose potential risks due to their proximity to neural and vascular structures. Traditionally, tEMG has been used to assess screw placement, though its invasiveness, low specificity, and cost limit its applicability. MMG may offer a promising alternative for routine clinical use. Our study compares the relative accuracy of triggered electromyography (tEMG) versus mechanomyography (MMG) in detecting intraoperative cortical bony breaches.

Methods

Using an equivalence trial design, consecutive patients undergoing posterior lumbosacral spinal arthrodesis were prospectively enrolled at a single institution. Pedicle screw trajectories were queried in real-time using combined tEMG and MMG-based evaluations

SUBMITTER: Arora H 

PROVIDER: S-EPMC12547453 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature