Personalized Guides for Registration in Surgical Navigation

Stud Health Technol Inform. 2016:220:98-102.

Abstract

Personalized guides are increasingly used in orthopedic procedures but do not provide for intraoperative re-planning. This work presents a tracked guide that used physical registration to provide an anatomy-to-tracking coordinate frame transformation for surgical navigation. In a study using seven femoral models derived from clinical CT scans used for hip resurfacing, a guide characterization FRE of 0.4°±0.2°, drill-path drill-path angular TRE of 0.9°±0.4° and a positional TRE of 1.2mm±0.4mm were found; these values are comparable to conventional optical tracking accuracy. This novel use of a tracked guide may be particularly applicable to procedures that require a small surgical exposure, or when operating on anatomical regions with small bones that are difficult to track or reliably register.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arthroplasty, Replacement, Hip / instrumentation*
  • Arthroplasty, Replacement, Hip / methods*
  • Equipment Design
  • Equipment Failure Analysis
  • Hip Joint / diagnostic imaging*
  • Hip Joint / surgery*
  • Humans
  • Precision Medicine
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Surgery, Computer-Assisted / instrumentation*
  • Surgery, Computer-Assisted / methods
  • Tomography, X-Ray Computed / instrumentation*
  • Tomography, X-Ray Computed / methods