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  • Title: Epidemiology of Total Ankle Arthroplasty: Trends in New York State.
    Author: Seaworth CM, Do HT, Vulcano E, Mani SB, Lyman SL, Ellis SJ.
    Journal: Orthopedics; 2016 May 01; 39(3):170-6. PubMed ID: 27135448.
    Abstract:
    The rate of total ankle arthroplasty (TAA) is increasing in the United States as its popularity and indications expand. There currently is no national joint registry available to monitor outcomes, and few studies have addressed the challenges faced with TAA. The purpose of this study was to evaluate the incidence, complications, and survival rates associated with TAA using a large statewide administrative discharge database. Individuals who underwent primary TAA from 1997 to 2010 were identified in the Statewide Planning and Research Cooperative System database from the New York State Department of Health. The age, sex, comorbidities, state of residence, primary diagnosis, and readmissions within 90 days were analyzed for patients with an ICD-9-CM procedure code of 81.56 (TAA). Failure of a TAA implant was defined as revision, tibiotalar arthrodesis, amputation, or implant removal. During the 14-year period, 420 patients underwent 444 TAAs (mean patient age of 61 years, 59% women, mean Charlson-Deyo comorbidity score of 0.45, and 86% New York State residents). The primary diagnosis was 37.4% osteoarthritis, 34.3% traumatic arthritis, and 15.5% rheumatoid arthritis. Surgery for failure was associated only with a younger age (56.5 vs 62 years, P=.005). The rate of subsequent failure procedures following TAAs performed in New York State was 13.8%. The incidence of TAAs is steadily increasing. The overall survival rate in New York State is better than rates reported in other national registries, but it is not yet comparable to those of hip and knee replacements. [Orthopedics. 2016; 39(3):170-176.].
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