Archives of Orthopaedic and Trauma Surgery

, Volume 128, Issue 4, pp 429–434

Intraoperative navigation in hip surface arthroplasty: a radiographic comparative analysis study

Orthopaedic Outcome Assessment

DOI: 10.1007/s00402-007-0540-3

Cite this article as:
Hart, R., Šváb, P. & Filan, P. Arch Orthop Trauma Surg (2008) 128: 429. doi:10.1007/s00402-007-0540-3

Abstract

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° in Group 1 compared to 2.1° 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.

Keywords

Surface arthroplastyComputer navigation

Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Department of Orthopaedics and TraumatologyGeneral Hospital ZnojmoZnojmoCzech Republic