Related Experiment Video
Updated: Jul 9, 2026
Augmented Reality Navigation-Guided Core Decompression for Osteonecrosis of Femoral Head
Published on: April 12, 2022
Intraoperative navigation in hip surface arthroplasty: a radiographic comparative analysis study
Radek Hart1, Pavel Sváb, Peter Filan
1Department of Orthopaedics and Traumatology, General Hospital Znojmo, 11 Dr. Jana Janského, 669 02 Znojmo, Czech Republic. primar.ortopedie@nemzn.cz
Background:
The goal of the current prospective randomised radiological study was to determine the accuracy of conventional and computer-assisted femoral component implantation in surface arthroplasty (SRA).
Methods:
We analysed on standard radiographs the femoral component positions after 30 conventional instrumented (Group 1) and 30 navigated (Group 2) SRA femoral components. We evaluated: varus or valgus orientation, horizontal femoral offset and translation of the component.
Results:
The tendency to implant the femoral component in mild valgus position (2.8 degrees in Group 1 compared to 2.1 degrees in Group 2), more distally and ventrally in the femoral neck (in Group 1) and with femoral off-set increase (4.8 mm in Group 1 compared to 3.4 mm in Group 2) was found.
Conclusions:
The navigation system enables a more accurate insertion of the femoral component.