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. 2012 Jan;3(1):27–42. doi: 10.1177/1947603511417616

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Figure 1. — MRI scans of the knee before and after ACT3D. (A-C) Transversal T2-weighted images of a 25-year-old man with a posttraumatic retropatellar defect before arthroscopy. A white arrow marks the defect (A). (B) Defect filling 3 months after ACT3D; there is a slightly hyperintense signal of the graft tissue. (C) The graft tissue is now only partially moderately hypointense compared to the adjacent cartilage and well integrated into the adjacent cartilage 12 months after ACT3D. (D-F) Coronal (D) and sagittal (E, F) T1-weighted MRI scans of a 37-year-old man with a full-thickness articular cartilage defect of the medial femoral condyle before treatment (white arrow) (D). (E) Image 3 months after ACT3D showing complete defect filling with smooth surface. (F) Image 1 year after ACT3D with complete integration of the graft.