Format

Send to:

Choose Destination
See comment in PubMed Commons below
J Arthroplasty. 2012 Apr;27(4):630-7. doi: 10.1016/j.arth.2011.07.001. Epub 2011 Sep 13.

Computer navigation vs extramedullary guide for sagittal alignment of tibial components: radiographic study and meta-analysis.

Author information

  • 1Division of Orthopaedic Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada.

Abstract

Sagittal alignment of tibial components using computer navigation was compared with conventional methods. A radiologic study was performed using 110 total knee arthroplasties from 3 groups: computer navigation, cutting block with extramedullary guide, and manual tilt of extramedullary guide. Posterior tibial slopes were measured from radiographs and compared using statistical methods. The cutting block method was the most accurate, and computer navigation was the most precise. The manual tilt group had the greatest variance, significantly greater than computer navigation. There was no significant difference between groups with respect to the percentage of knees with posterior slope within 3° of the desired slope. Meta-analysis of 10 studies found no reduction in outliers with computer navigation. Computer navigation offers greatest precision but does not reduce the number of outliers.

Copyright © 2012 Elsevier Inc. All rights reserved.

PMID:
21917415
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk