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Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_8 | Pages 6 - 6
1 May 2021
Ha T Higgs Z Watling C Osam CS Madeley NJ Kumar CS
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Total ankle replacement (TAR) is performed for inflammatory arthropathy, osteoarthritis and other indications. The Scottish Arthroplasty Project (SAP) began collection of data on TAR in 1998. In this study, we look at trends in the use and outcomes of TAR in Scotland.

We identified patients from the SAP who underwent TAR between 1998 and 2015 with imaging available on the National Picture Archiving and Communication System (PACS). We identified, and examined trends in implant type over the following time periods: 1998–2005; 2006–2010 and 2011–2015. Age, gender, indication, outcomes and trends in implants used for each time period were examined.

There were 499 primary TAR procedures with an overall incidence of 0.5/105 population per year. Eight implants were identified with significant changes in the numbers of each type used over time. The peak incidence of TAR was in the 6th decade and mean age of patients increased from 59 years in 1998–2005, to 65 years in 2011–15 (p<0.0001). The percentage of patients with inflammatory arthropathy was 49% in 1998–2005, compared with 10% in 2011–2015. Arthrodesis and infection rates appeared to be higher during the first time period. The male to female ratio changed over time. The incidence of TAR increased overall during the study period (r= 0.9, p=<0.0001).

This study examines a large number of TARs from an established arthroplasty registry. The rate of TAR has increased significantly in Scotland from 1998 to 2015. Indications and patient age have changed over time and could impact outcomes after ankle replacement.