673 68 Male Talus necrosis Talus necrosis Talus necrosis Talus necrosis TAA loosening Talus necrosis Talus necrosis Left talus necrosis Right talus necrosis 66 Talus Female necrosis 75 Talus Female necrosis 73 Talus Female necrosis 75 Female 69 Female 72 Female 73 Female 63 Female 57 Female 67 Female 69 Diagnosis 12 18 24 8 13 8 10 8 12 12 8 8 8 11 12 11 12 Time to Union (wk) 32 39 47 48 24 85 48 Followup (mo) 9 9 9 9 9 Radiography 9 9 9 9 9 9 9 CT Union Confirmed by Free fibula Half thickness of iliac crest and free fibula Half thickness of iliac crest and free fibula Half thickness of iliac crest and free fibula Full thickness of iliac crest Full thickness of iliac crest Full thickness of iliac crest Full thickness of iliac crest Full thickness of iliac crest Full thickness of iliac crest Half thickness of iliac crest and free fibula Free fibula Grafted Bone to Fill the Defect 5 9 10 13 2 2 7 8 9 11 6 8 Leg-Length Discrepancy (mm) 7 2 8 10 5.5 0 6 4 −2 3 10 5 74 69 75 72 75 74 70 66 72 76 67 70 HAVA SCA (degrees) (degrees) HAVA, hindfoot view alignment angle; Post-op, postoperation; Pre-op, preoperation; SCA, sagittal calcaneal angle; TAA, total ankle arthroplasty. 11 10 9 8 7 6 5 4 3 2 1 Case Age (y) Sex Table 1. Patient Demographics and Outcome Data. 61 37 64 64 51 41 56 64 43 64 59 41 Pre-op 71 78 77 73 59 69 78 84 81 84 81 71 Post-op AOFAS Score Scleroderma, pulmonary hypertension Remarks