Early outcomes and radiographic alignment of the Infinity total ankle replacement with a minimum of two year follow-up data

King, Andrew; Bali, N; Kassam, Al-Amin; Hughes, Andrew; Talbot, Nicholas; Sharpe, IT

doi:10.1016/j.fas.2018.11.007

Cited by 26 publications

(21 citation statements)

References 15 publications

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“…The values of Cohen’s d for small, medium, and large effects are 0.2, 0.5, and 0.8, respectively. 2,14,17 For analyses with patients <50, a Hedge’s corrected version of the Cohen’s d was used to reduce effect sizes for small samples and correct for potential overinflation of results. 8,10 Significance was set at P <.05 and SPSS Statistics, version 26.0, was used for all statistical analyses.…”

Section: Discussionmentioning

confidence: 99%

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Two-Year Outcomes After Total Ankle Replacement With a Novel Fixed-Bearing Implant

et al. 2021

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Background: The Integra Cadence total ankle replacement (TAR) is a fourth-generation anatomic, fixed-bearing implant requiring minimal tibial and talar resection, which has been in clinical use since June 2016. The primary purpose of this study is to assess its short-term clinical and radiographic outcomes after TAR using this prosthesis. Methods: This is a prospective case series of consecutive patients that underwent TAR using this novel fourth-generation prosthesis between June 2016 and November 2017. The primary outcome of interest was the Ankle Osteoarthritis Scale (AOS). Secondary outcomes included Short Form Health Survey–36 (SF-36) scores, radiographic alignment, complications, reoperations, and revisions. Results: In total, 69 patients were included in our study. Fifty-one patients (73.9%) required a total of 91 ancillary procedures. Postoperatively, AOS pain scores decreased significantly by an average of 17.8±30.1 points from 45.9±18.2 to 28.4±27.3 ( P < .001). AOS disability scores also decreased significantly following surgery by an average of 22.0±30.5 points from 53.9±18.5 to 32.5±27.9 ( P < .001). The SF-36 physical component summary score improved 10.4±9.8 points from 33.1±9.1 to 42.6±9.1 ( P < .001). Radiographic analysis demonstrated significant improvement to neutral coronal plane alignment, which was achieved in 97% of patients ( P < .01) with no cyst formation at 2 years. There was 1 reported complication, 9 reoperations, and no metal or polyethylene component revisions. Overall, the 2-year implant survivorship was 100% in our cohort. Eighteen patients (26.1%) demonstrated fibrous ingrowth of the tibial component. However, outcome scores for these patients did not demonstrate any negative effects. Conclusions: In our hands, this TAR system demonstrated excellent early clinical and radiographic outcomes. Patients reported improved physical health status, pain, and disability in the postoperative period. Total ankle instrumentation allowed for accurate and reproducible implantation with correction of coronal and sagittal plane deformities. Early results for the clinical use of this TAR system are promising, but further long-term prospective outcome studies are necessary. Level of Evidence: Level IV, case series.

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Section: Discussionmentioning

confidence: 99%

“…8 Although there are limited data available on fourth-generation implants, studies reporting on the current generation of implants have shown promising clinical results. 14,17…”

Section: Introductionmentioning

confidence: 99%

Two-Year Outcomes After Total Ankle Replacement With a Novel Fixed-Bearing Implant

et al. 2021

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“…General complications related to the use of this prosthesis are reported in up to 54% of the cases (15,16) and, in the cohort by Saito et al (16) , consisted mainly of impingement of the lateral groove. However, the most frequent complication in our sample was that involving soft tissues.…”

Section: Discussionmentioning

confidence: 85%

“…Infinity ankle prosthesis (Wright Medical Technology) is a fourth-generation implant characterized by low profile, fluo- roscopically navigated, fixed-bearing device with a symmetrical condylar geometry that uses a resurfacing and fluoroscopic navigation system (15,16) . Since its use was initiated in 2013, this prosthesis has demonstrated satisfactory clinical and radiological outcomes.…”

Section: Discussionmentioning

confidence: 99%

“…Prostheses with fluoroscopic navigation (Figure 3) enhance the accuracy of postoperative outcomes with regard to implant alignment; in 2018 King et al (15) found, in a cohort of 20 patients with a 24-month follow-up, a deviation of 1.5° from 90° alignment to the anatomical axis of the tibia, which allows for a homogeneous distribution of body load that is translated in the preservation of implant components. Similarly, Saito et al (16) reported improvement in tibiotalar coronal alignment with the use of a fluoroscopically navigated prosthesis, as shown by the maintenance of the prosthesis and consistent with the results observed in our radiological follow-up assessment.…”

Section: Discussionmentioning

confidence: 99%

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Functional and radiological assessment of total ankle replacement with infinity prosthesis

Forero

Ciodaro

Forero³

et al. 2021

J Foot Ankle

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Objective: To present mid-term functional and radiological outcomes obtained with the use of Infinity prosthesis in Bogotá (Colombia). Methods: This cross-sectional observational study selected consecutive patients subjected to total ankle replacement with the fourth generation Infinity prosthesis (Wright Medical Technology). Results: Fifty-two patients with ankle arthrosis were followed for a mean period of 24 months, and the most frequently reported case of joint degeneration was trauma. Postoperative improvement was observed in perception of pain (visual analog scale increased from 8/10 to 2/10; p<0.0005), AOFAS functional scale (from 23 to 84.5; p < 0.0005), and range of motion (from 11° to 29°; p<0.0005). Similarly, radiological findings, implant positioning, and signs of loosening did not reveal implant failure. Conclusions: The use of fluoroscopically navigated prostheses allows us to achieve predictable outcomes, with satisfactory mid-term clinical and imaging results. Level of Evidence IV; Therapeutic Studies; Case Series.

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History of Total Ankle Replacement in North America

Kooner

Marsh

Wilson

et al. 2021

Primary and Revision Total Ankle Replacement

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Early outcomes and radiographic alignment of the Infinity total ankle replacement with a minimum of two year follow-up data

Cited by 26 publications

References 15 publications

Two-Year Outcomes After Total Ankle Replacement With a Novel Fixed-Bearing Implant

Two-Year Outcomes After Total Ankle Replacement With a Novel Fixed-Bearing Implant

Functional and radiological assessment of total ankle replacement with infinity prosthesis

History of Total Ankle Replacement in North America

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