Raikin et al 667 Figure 2. Kaplan-Meier survivorship curve. The solid line represents the calculated survivorship to 14 years (70.4%), with the hatched lines representing the 95% confidence interval (60.6%-81.7%). Figure 3. Average SF-12 physical and mental scores of total ankle arthroplasty patients compared the average scores of US population aged 65-74 years and 75 years and older. unfortunately were not available preoperatively, precluding statistical comparative analysis. The authors did however show favorable comparative SF-12 outcome scores for patients with surviving Agility TAR, even compared to national norms for age-matched controls. Additionally, there was a statistically significant reduction in VAS pain score