This post market outcome study will look at the therapeutic results of the Salto Talaris Anatomic ankle prosthesis. The study population will consist of patients who will undergo an ankle arthroplasty procedure with a Salto Talaris ankle implant. An analysis will be conducted of the results, complications and revisions of this prosthesis based on the etiology for which the ankle arthroplasty was performed.

This is a prospective, multi-center study that will capture the therapeutic results of the Salto Talaris Anatomic ankle prosthesis in the treatment of various ankle afflictions.

Inclusion Criteria:

• Subjects that need an ankle joint replacement due to arthritis or failed prior fusion.
• Subjects who have failed standard conservative management of their ankle condition

Exclusion Criteria:

• Class IV or higher anesthetic risk
• Subjects who are not able to comply with the study procedures
• Known contraindications to joint replacement such as active infection, complete talar necrosis, insufficient quality of bone stock, ligament laxity, severe osteopenia, Charcot's arthropathy
• Unwilling to be followed for 5 years

Candidates will be considered regardless of gender, race or ethnicity. The racial, gender and ethnic characteristics of the proposed patient population will reflect the demographics of the surrounding area.