INFINITY™Total Ankle Replacement Follow-up

Inclusion Criteria:

- Be 21 years of age or older at the time of surgery;

- Diagnosed with unilateral and/or bilateral ankle joint disease;

- Diagnosed with ankle joint damage from rheumatoid arthritis, post-traumatic, or
degenerative arthritis;

- Willing and able to consent to participate (written, informed consent;

- Willing and able to attend the requested follow-up visits;

- A clinical decision has been made to use INFINITY™ Total Ankle System replacement
prior to enrollment in the research.

Exclusion Criteria:

- Subjects with an ankle condition, as determined by the investigator, to be an
inappropriate candidate for a total ankle replacement;

- Subjects requiring revision total ankle replacement of the ankle being considered for
study.