Handheld navigation in total knee arthroplasty.

Computer navigation for knee replacement surgery has been available for over a decade but has not gained popularity despite improved accuracy. The literature has shown higher failure rates for knee replacements with tibial malalignment. This article reviews some of this literature and demonstrates a novel handheld, simple-to-use, disposable navigation system that has been proven to be accurate and may be the answer to combining ease of use, lower cost, and increased accuracy to give better overall results.