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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Los Pseudotumores Hemofílicos, son lesiones de baja prevalencia, associadas a el déficit de factor de la coagulación XIII o IX, característicos de la Hemofilia. La localización es más frecuente en zonas como la cadera o el iliopsoas, mientras que en articulaciones distales son exóticos. Nosotros mostramos en este caso el desarrollo de un Pseudotumor Hemofílico en relación al abordaje anterolateral convencional de artroscopia de tobillo, en un paciente con Hemofilia tipo A leve, quien requierió manejo quirúrgico por artropatía hemofílica.