Three-dimensional component alignment and functional outcome in computer-navigated total knee arthroplasty: a prospective, randomized study comparing two navigation systems.
rct · Level II
Where this comes from
- Record sourced from PubMed, PMID 21316913.
- Also identified by DOI 10.1016/j.arth.2010.12.022.
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Abstract
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.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Bone Malalignment
- Knee Joint
- Range of Motion, Articular
- Surgery, Computer-Assisted
Anatomy
- femur
- knee
- tibia