Clinical Research Directory

Inclusion Criteria: * Diagnosis of end-stage ankle osteoarthritis * Aged 50-85 years inclusive * The surgeon believes the patient is suitable for both TAR and arthrodesis (having considered deformity, stability, bone quality, soft tissue envelope, and neurovascular status) * The patient is able to read and understand the Patient Information Sheet (PIS) and trial procedures * The patient is willing and able to provide written informed consent Exclusion Criteria: * Previous ipsilateral talonavicular, subtalar or calcaneocuboid fusion or surgery planned within 1 year of index procedure * More than 4 lower limb joints fused (including contralateral limb, but excluding proximal interphalangeal joint fusions) * • Unable to have MRI/CT scan (e.g. severe claustrophobia or contraindication for either scan) * History of local bone or joint infection * Any co-morbidity, which, in the opinion of the investigator, is severe enough to; interfere with the patient's ability to complete the study assessments or; presents an unacceptable risk to the patient's safety * Participant in another clinical trial that would materially impact on their participation in this study