Computer Assisted Navigation in Total Knee Arthroplasty

Autor:	Knute C. Buehler, Kevin C. Anderson, David C. Markel
Rok vydání:	2005
Předmět:	medicine.medical_specialty business.industry medicine.medical_treatment Biomechanics Total knee arthroplasty Navigation system Computer assisted navigation Arthroplasty Surgery medicine Orthopedics and Sports Medicine Component alignment Implant business Mechanical axis
Zdroj:	The Journal of Arthroplasty. 20:132-138
ISSN:	0883-5403
DOI:	10.1016/j.arth.2005.05.009
Popis:	The success of knee arthroplasty is dependent on many factors. Postoperative extremity and component alignment are important determinants of outcome and longevity. Malalignment (>3 degrees ) results in higher failure rates. Computer-assisted navigation devices were developed to improve implant positioning. This study evaluated the early outcomes of a high-volume fellowship-trained surgeon relative to component positioning and limb alignment using an image-free navigation system. The navigation group consisted of 116 consecutive patients, and the conventional group consisted of 51 consecutive patients. The postoperative mechanical axis was within 3 degrees of neutral mechanical alignment in 95% of the navigation cases vs 84% of the conventional cases (P < .02). The range of the alignment and component position measurements narrowed, and the undesired outliers decreased. Accuracy was improved with navigation. Navigation was a viable device to improve the outcome of total knee arthroplasty relative to limb and component alignment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::87a4bbc830aa88198c1fae0d9aac7c6a https://doi.org/10.1016/j.arth.2005.05.009 Zobrazit plný text záznamu Full Text from ScienceDirect