Vantage Mobile Bearing Total Ankle System Post Market Clinical Follow-up (Outside US)

Inclusion Criteria:

• Patient is indicated for total ankle arthroplasty

• Patient is at least 21 years of age

• Patient is likely to be available for follow-up out to 10 years

• Patient is willing to participate by complying with pre- and postoperative visitrequirements

• Patient is willing and able to read and sign a study informed consent form

Exclusion Criteria:

• Patient with excessive bone loss at the ankle joint site

• Patient with severe osteoporosis

• Patient with complete talar avascular necrosis

• Patient with active osteomyelitis

• Patient with infection at the ankle site or infection at distant sites that couldmigrate to the ankle

• Patient with sepsis

• Patient with vascular deficiency in the involved limb

• Pateint with neuropathic joints

• Patient with neurological or musculoskeletal disease or loss of function that mayadversely affect movement of the lower limb, gait, or weight bearing

• Patient with poor soft tissue coverage around the ankle

• Patient with Charcot arthropathy

• Previsous ankle arthrodesis with excision of the malleoli

• Excessive loads as cuased by activity or patient weight - per investigatordiscretion

• Skeletally immature patients (patient is less than 21 years if age at time ofsurgery)

• Patient with dementia

• Patient with known metal allergies

• Patients who are unwilling to provide informed consent

• Patients who are unlikely to be available for follow-up out to 10 years

• Patients who are not deemed suitable candidates for the subject device

• Patient is pregnant