A comprehensive biomechanical analysis of sacral alar iliac fixation: an in vitro human cadaveric model

Bryan W. Cunningham, Paul D. Sponseller, Ashley A. Murgatroyd, Jun Kikkawa, P. Justin Tortolani

Research output: Contribution to journalArticle

Abstract

In BriefIn this in vitro investigation, we compared the multidirectional flexibility properties of sacral alar iliac fixation with conventional methods of sacral and sacroiliac fixation using nondestructive and destructive investigative methods. The study demonstrated that S1-2 sacral fixation alone significantly increases sacroiliac motion under all loading modalities, while sacral alar iliac fixation reduced motion in axial rotation at the sacroiliac joint and offers potential advantages of a lower instrumentation profile and ease of assembly compared to conventional sacroiliac screw instrumentation.

Original languageEnglish (US)
Pages (from-to)367-375
Number of pages9
JournalJournal of neurosurgery. Spine
Volume30
Issue number3
DOIs
StatePublished - Jan 4 2019

Keywords

  • biomechanical properties
  • iliac screws
  • ROM = range of motion
  • sacral alar iliac fixation
  • sacroiliac junction

ASJC Scopus subject areas

  • Surgery
  • Neurology
  • Clinical Neurology

Fingerprint Dive into the research topics of 'A comprehensive biomechanical analysis of sacral alar iliac fixation: an in vitro human cadaveric model'. Together they form a unique fingerprint.

  • Cite this