The Cost-Effectiveness of Computer-Assisted Navigation in Total Knee Arthroplasty

by Erik J. Novak, Marc D. Silverstein, and Kevin J. Bozic

J Bone Joint Surg AmVolume 89(11):2389-2397

November 1, 2007

©2007 by The Journal of Bone and Joint Surgery, Inc.

Decision tree used in the cost-effectiveness analysis.

Erik J. Novak et al. J Bone Joint Surg Am 2007;89:2389-2397

©2007 by The Journal of Bone and Joint Surgery, Inc.

One-way sensitivity analysis of incremental cost-effectiveness ratio (ICER) of computer-assisted surgery compared with mechanical guides by years of follow-up after total knee arthroplasty

(TKA).

Erik J. Novak et al. J Bone Joint Surg Am 2007;89:2389-2397

©2007 by The Journal of Bone and Joint Surgery, Inc.

Scatter plot depicting the incremental cost-effectiveness ratios derived from the Monte Carlo (probabilistic) sensitivity analysis.

Erik J. Novak et al. J Bone Joint Surg Am 2007;89:2389-2397

©2007 by The Journal of Bone and Joint Surgery, Inc.

Acceptability curve depicting the relationship between dollars per quality-adjusted life-year (QALY) on the x axis and the proportion of simulations in the Monte Carlo analysis that are cost-

effective on the y axis.

Erik J. Novak et al. J Bone Joint Surg Am 2007;89:2389-2397

©2007 by The Journal of Bone and Joint Surgery, Inc.