Computer navigation in total knee arthroplasty produces better component alignment than conventional techniques. Different navigation systems exist. We undertook a prospective, randomized study comparing 2 navigations systems (Stryker Full Navigation and Stryker Articular Surface Mounted [ASM] navigation systems). Three-dimensional component alignment (Perth computed tomographic knee protocol) and function at 1 year (Knee Society Scores) were assessed. Forty patients participated (20 fully navigated and 20 ASM-navigated total knee arthroplasties). Cohorts were well matched according to sex, age, and body mass index. No statistically significant difference was seen in any parameter of 3-dimensional component alignment or function between cohorts. Operative time for the ASM cohort was significantly less than the fully navigated cohort (P = .001). Both systems performed equally well, and therefore, surgeon preference should determine which system is used.

Item Type:	Refereed Article
Keywords:	Articular surface mounted; Computer navigation; Perth ct protocol; Total knee arthroplasty
Research Division:	Medical and Health Sciences
Research Group:	Clinical Sciences
Research Field:	Orthopaedics
Objective Division:	Health
Objective Group:	Clinical Health (Organs, Diseases and Abnormal Conditions)
Objective Field:	Skeletal System and Disorders (incl. Arthritis)
Author:	Harvie, P (Dr Paul Harvie)
ID Code:	95328
Year Published:	2011
Web of Science® Times Cited:	19
Deposited By:	Medicine (Discipline)
Deposited On:	2014-09-30
Last Modified:	2014-09-30
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