Canadian Orthopaedic Foot and Ankle Society Surgical Treatment of Ankle Arthritis Outcome Study

Inclusion Criteria: * Eighteen (18) or older * Known to have ankle arthritis for more than six (6) months * Tried non operative treatment measures (eg. activity modification, physiotherapy, orthotics, bracing etc.) and have not improved * Patient tests (questionnaires) show that ankle arthritis is severe * Patient willing to take part in the study, including signing consent form after carefully reading it Exclusion Criteria: * Dead Bone in the Ankle * Severe foot or Ankle Deformity * Prior Ankle Fusion or Replacement * Active or Prior Infection in the Ankle * Obesity (greater than 250 lbs) * Medical Conditions precluding safe surgery * Nerve or Muscle disease * Severe osteoporosis