A multi-planar CT-based comparative analysis of patient-specific cutting guides with conventional instrumentation in total knee arthroplasty.

Marimuthu, Kanniraj; Chen, Darren B; Harris, Ian A; Wheatley, Emma; Bryant, Carl J; MacDessi, Samuel J · J Arthroplasty · 2014

retrospective_cohort · Level III

Where this comes from

Abstract

Patient specific guides (PSGs) are postulated to improve the alignment of components in total knee arthroplasty. Three hundred consecutive total knee arthroplasties performed with either conventional (CON) (n = 185) or Visionaire PSG (n = 115) were evaluated with a CT protocol for coronal limb alignment, coronal and sagittal alignment of individual components and femoral component rotation. There was no statistically significant difference between the two groups in any of the above parameters. In addition, no difference was found in total operative time. PSGs do not offer any benefit over conventional guides in terms improving the coronal alignment of the limb or alignment of individual components.

Medical subject headings

Anatomy