1. Copyright © 2012 American Medical Association. All rights reserved.
From: Total Knee Arthroplasty Volume, Utilization, and Outcomes Among Medicare Beneficiaries,
JAMA. 2012;308(12): doi: /2012.jama.11153
Figure Legend:
Y-axis shown in blue indicates range from 0 to 25 000 procedures per year.
Date of download: 10/31/2017
Copyright © 2012 American Medical Association. All rights reserved.

2. Copyright © 2012 American Medical Association. All rights reserved.
From: Total Knee Arthroplasty Volume, Utilization, and Outcomes Among Medicare Beneficiaries,
JAMA. 2012;308(12): doi: /2012.jama.11153
Figure Legend:
Y-axis shown in blue indicates range from 0 to 7 procedures per year per 10 000 enrollees. The range of variability (1 SD) in primary total knee arthroplasty (TKA); procedures per 10 000 Medicare enrollees for 1991 was 31.0 to 31.4; for 2010, 5.0 to 5.1. For revision TKA, the range of variability (1 SD; procedures per 10 000 Medicare enrollees) for 1991 was 3.2 to 3.3; for 2010, 5.0 to 5.1.
Date of download: 10/31/2017
Copyright © 2012 American Medical Association. All rights reserved.