Related Experiment Video
Updated: May 3, 2026
Three-Dimensional Preoperative Virtual Planning in Derotational Proximal Femoral Osteotomy
Published on: February 17, 2023
A multi-planar CT-based comparative analysis of patient-specific cutting guides with conventional instrumentation in
Kanniraj Marimuthu1, Darren B Chen2, Ian A Harris3
1Fellow in Knee Reconstructive Surgery, Sydney Knee Specialists, NSW, Australia.
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.
