2014
DOI: 10.1016/j.otsr.2013.12.029
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Influence of the optical system and anatomic points on computer-assisted total knee arthroplasty

Abstract: Level IV.

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Cited by 15 publications
(11 citation statements)
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“…In keeping with previous investigations [ 18 , 33 ], a mean difference of 1.5° or less between measurements was considered indicative of equivalence and within the margin of error both for radiographic assessment and accuracy of optical computer-assisted navigation [ 26 , 47 ]. Assuming the standard deviation (SD) of the paired differences to be 3.5°, to achieve a power of 80% at a 5% level of significance (two-sided), it was determined a minimum of 45 pairs would be required to detect whether a true difference exists between measurement techniques.…”
Section: Methodsmentioning
confidence: 99%
“…In keeping with previous investigations [ 18 , 33 ], a mean difference of 1.5° or less between measurements was considered indicative of equivalence and within the margin of error both for radiographic assessment and accuracy of optical computer-assisted navigation [ 26 , 47 ]. Assuming the standard deviation (SD) of the paired differences to be 3.5°, to achieve a power of 80% at a 5% level of significance (two-sided), it was determined a minimum of 45 pairs would be required to detect whether a true difference exists between measurement techniques.…”
Section: Methodsmentioning
confidence: 99%
“…Prenavigation, introduced in 2006, had the drawback that it did not allow for evaluation of bone resection and prosthetic alignment during surgery. 1 2 3 4 5 6 Further developments included computer-assisted TKA with optical systems, 7 8 9 10 electromagnetic navigation, and more recently smart wireless navigation system.…”
Section: Discussionmentioning
confidence: 99%
“…Navigation in TKA can improve accuracy of bone resection, clinical function, and blood loss. Since its introduction, navigation has taken various forms: image-based navigation, imageless navigation, fluoroscopy-based navigation, optical navigation, 7 8 9 10 and electromagnetic navigation. 11 12 13 14 15 Recently, navigation systems have developed the use of gyroscopes, 16 17 which can be attached to conventional resection instrumentation and can capture data during the procedure and exchange information using a secure local wireless (WiFi) channel, to guide the bone resections and validate component placement.…”
Section: Introductionmentioning
confidence: 99%
“…Le Centre Hanche (CH) est un paramètre essentiel en chirurgie orthopédique largement utilisé dans nombre de procédures principalement associées au contrôle ou à la correction de l'axe du membre inférieur [1][2][3][4][5][6]. En Chirurgie Orthopédique Assistée par Ordinateur (ou chirurgie naviguée), deux approches peuvent être envisagées pour déterminer le centre hanche : (1) les approches anatomiques qui nécessitent un accès direct à la tête fémorale du patient et qui considèrent le CH comme étant le centre morphologique de la tête fémorale ; et les approches fonctionnelles qui sont non-invasives et qui estiment la position du CH en calculant le centre de rotation du fémur par rapport au pelvis.…”
Section: Introductionunclassified
“…Plusieurs études ont été menées pour évaluer ces approches fonctionnelles. Elles étaient basées soit sur des expériences in-silico (par simulations mathématiques ou sur bancs mécaniques) 6 [3,5,7,9,14,15], soit sur des expériences in-vitro (sur spécimens cadavériques) [1,6,8,17]. Les expériences in-silico permettent l'évaluation des algorithmes dans un environnement contrôlé où plusieurs paramètres peuvent être simulés afin d'évaluer de manière indépendante leurs impacts sur les résultats.…”
Section: Introductionunclassified