The accuracy of acquisition of an imageless computer-assisted system and its implication for knee arthroplasty

Lustig, S, Fleury, C, Goy, D, Neyret, P and Donell, ST (2011) The accuracy of acquisition of an imageless computer-assisted system and its implication for knee arthroplasty. The Knee, 18 (1). pp. 15-20. ISSN 0968-0160

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Abstract

The majority of the current computer-assisted systems (CAS) for knee prosthetic surgery require the acquisition of points using a tracker detected by an infrared camera. Two types of measurements are then essential: angles and distances. The goal of this study was to evaluate the accuracy of the data obtained during computer-assisted surgery using an in vitro protocol. Two models were developed to locate precisely both points (120 acquisitions) and distance measurements (144 acquisitions) and angles (170 acquisitions) with an image-free CAS using an infrared optical camera. For validation, a precise coordinate 3D measurement device was used to assess the accuracy of CAS acquisitions. The points, distances and angles had a mean error respectively of 0.638 mm (0.244 mm to 0.931 mm), 0.355 mm (0.001 mm to 1.338 mm) and 0.39° (0.06° to 0.69°). For all these acquisitions, the mean error was statistically less than 1mm or 1° (p

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
Depositing User: Rhiannon Harvey
Date Deposited: 19 Apr 2011 09:11
Last Modified: 28 May 2020 23:48
URI: https://ueaeprints.uea.ac.uk/id/eprint/29586
DOI: 10.1016/j.knee.2009.12.010

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