Clinical Research Directory

Inclusion Criteria: * Patients meeting all of the following criteria will be considered eligible for study participation: 1. Patient has a bone defect in the hindfoot or ankle; and 2. Is requiring fusion using an open surgical technique with supplemental bone graft/substitute; and 3. Fusion site is able to be rigidly stabilized with no more than 3 screws across the fusion site; and 4. Patient is requiring one of the following procedures: * Ankle joint fusion * Subtalar fusion * Calcaneocuboid fusion * Talonavicular fusion * Triple arthrodesis (subtalar, talonavicular and calcaneocuboid joints) * Double fusions (talonavicular and calcaneocuboid joints). Exclusion Criteria: * Patient meeting any of the following criteria will be excluded from study participation: 1. Patient is under 18 years of age at the time of consent; 2. Patient has an active (local or systemic) infection or is undergoing adjunctive treatment for infection; 3. Patient has previous fusion surgery of the proposed fusion site; 4. Patient has cognitive disorders or is unable to complete questionnaires or provide consent.