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Arthrosis of the ankle and hindfoot

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Total ankle arthroplasty (TAA): In this procedure, the surgeon replaces the damaged tibial plafond and talus with an artificial joint (Figure 10). It is ideal for a lightweight, sedentary, older patient with end-stage osteoarthritis who has minimal deformity, good range of motion, a good soft tissue envelope, and is unwilling to undergo fusion in the affected joint. Ankle replacements normally rely on proximal fixation in the tibia and subsequent proximal fixation in the tibia and fibula. Since the prosthesis will tend to fail over time, TAA is best for older patients who are relatively less active.

 

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Figure 10: Total ankle arthroplasty requiring syndesmotic fusion. Credit: http://www.orthopaedicsone.com/display/Main/Ankle+arthritis

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