Radiographic and Clinical Outcomes of the Salto Talaris Total Ankle Arthroplasty
| Autor: | Jaeyoung Kim, Andrew Roney, Constantine A. Demetracopoulos, Austin E. Sanders, Scott J. Ellis, Jonathan Day, David S. Levine, Jonathan H. Garfinkel, Martin J. O’Malley, Jonathan T. Deland |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Reoperation Radiography Joint Prosthesis Prosthesis Design Arthritis Rheumatoid 03 medical and health sciences Arthroplasty Replacement Ankle 0302 clinical medicine Survivorship curve Surveys and Questionnaires Osteoarthritis Medicine Humans Orthopedics and Sports Medicine Prospective Studies Aged Retrospective Studies Orthodontics Aged 80 and over 030222 orthopedics business.industry 030229 sport sciences Middle Aged Prosthesis Failure Total ankle arthroplasty Surgery Female Implant business |
| Zdroj: | Footankle international. 41(12) |
| ISSN: | 1944-7876 |
| Popis: | Background: The Salto Talaris is a fixed-bearing implant first approved in the US in 2006. While early surgical outcomes have been promising, mid- to long-term survivorship data are limited. The aim of this study was to present the survivorship and causes of failure of the Salto Talaris implant, with functional and radiographic outcomes. Methods: Eighty-seven prospectively followed patients who underwent total ankle arthroplasty with the Salto Talaris between 2007 and 2015 at our institution were retrospectively identified. Of these, 82 patients (85 ankles) had a minimum follow-up of 5 (mean, 7.1; range, 5-12) years. The mean age was 63.5 (range, 42-82) years and the mean body mass index was 28.1 (range, 17.9-41.2) kg/m2. Survivorship was determined by incidence of revision, defined as removal/exchange of a metal component. Preoperative, immediate, and minimum 5-year postoperative AP and lateral weightbearing radiographs were reviewed; tibiotalar alignment (TTA) and the medial distal tibial angle (MDTA) were measured to assess coronal talar and tibial alignment, respectively. The sagittal tibial angle (STA) was measured; the talar inclination angle (TIA) was measured to evaluate for radiographic subsidence of the implant, defined as a change in TIA of 5 degrees or more from the immediately to the latest postoperative lateral radiograph. The locations of periprosthetic cysts were documented. Preoperative and minimum 5-year postoperative Foot and Ankle Outcome Score (FAOS) subscales were compared. Results: Survivorship was 97.6% with 2 revisions. One patient underwent tibial and talar component revision for varus malalignment of the ankle; another underwent talar component revision for aseptic loosening and subsidence. The rate of other reoperations was 21.2% ( n = 18), with the main reoperation being exostectomy with debridement for ankle impingement ( n = 12). At final follow-up, the average TTA improved 4.4 (± 3.8) degrees, the average MDTA improved 3.4 (± 2.6) degrees, and the average STA improved 5.3 (± 4.5) degrees. Periprosthetic cysts were observed in 18 patients, and there was no radiographic subsidence. All FAOS subscales demonstrated significant improvement at final follow-up. Conclusions: We found the Salto Talaris implant to be durable, consistent with previous studies of shorter follow-up lengths. We observed significant improvement in radiographic alignment as well as patient-reported clinical outcomes at a minimum 5-year follow-up. Level of Evidence: Level IV, retrospective case series. |
| Databáze: | OpenAIRE |
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