Radek Hart1, Pavel Sváb, Peter Filan. 1. Department of Orthopaedics and Traumatology, General Hospital Znojmo, 11 Dr. Jana Janského, 669 02 Znojmo, Czech Republic. primar.ortopedie@nemzn.cz
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 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.
RCT Entities:
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.
Authors: Christoph Schnurr; Jochen Nessler; Jürgen Koebke; Joern William Michael; Peer Eysel; Dietmar Pierre König Journal: Oper Orthop Traumatol Date: 2010-07 Impact factor: 1.154
Authors: M C Koper; M Reijman; E M van Es; J H Waarsing; H W J Koot; S B Keizer; I Jansen; F C van Biezen; J A N Verhaar; P K Bos Journal: BMC Musculoskelet Disord Date: 2019-10-25 Impact factor: 2.362