
Source: Gottlob, CA, Pellissier JM, Wixson RL, Stern SH Stulberg SD, Chang RW, "The Long-Term Cost-Effectiveness of Total Knee Arthroplasty for Osteoarthritis," AAOS Scientific Paper #114, Atlanta GA, February 23, 1996.
Figures adjusted to 2007 dollars, and represent the comparative cost of surgical vs. non-surgical treatment over the life of an average 70-year-old patient with end-stage osteoarthritis.