AV (mm2) RV (%) NA (°) AV-c AV-s AV-a RV-c RV-s RV-a NA-c NA-s Sum Pre-op 560.0 561.0 560.5 35.0 35.7 35.1 137 137 274 Post-op 1 yr 583.2 564.4 573.7 41.2 33.2 37.7 132 140 272 Last f/u 565.8 551.6 563.7 35.8 33.4 34.6 131 137 268 AV-c: absolute value in coronal image, AV-s: absolute value in sagittal image, AV-a: average absolute value RV-c: relative value in coronal image, RV-s: relative value in sagittal image, RV-a: average relative value NA-c: necrotic angle in coronal image, NA-s: necrotic angle in sagittal image, sum: NA-c + NA-s

Table 5: Summary of radiologic results.