Fig. 3
From: Chondroblastoma of the patella with pathological fracture in an adolescent: a case report
X-ray and CT scan obtained at 21 months after the operation. A, B A1 and A2 Axial images of the patella and lateral X-ray films of the knee joint showed that the grafting bone had been completely incorporated with the host bone, and the fixation showed no looseness or rupture. B1 and B2 Cross and sagittal CT scans revealed bony union