Figures index : Osteochondritis Dissecans Treated With Autograft Cartilage Transplantation System (Mosaicplasty): MRI Contribution on Patient Follow-up - Case Report : Science and Education Publishing

Figures index

American Journal of Medical Case Reports. 2015, 3(11), 374-376 doi:10.12691/ajmcr-3-11-7

Figure 1. MRI -‐ Sagittal FS T2 weighted image: A) Database evaluation: There is a defective osseous site in the medial femoral condyle with a bone fragment detached from the native underlying bone by a linear hyperintense image (unstable fragment). B) MRI follow-‐up after first year of surgery shows the chondral surface after graft harvesting with slight T2 hyperintensity in the medulla and with no definite cortical margin of the osteochondral fragment. C) Two-‐year follow-‐up showed decreased T2 signal in the subchondral medulla, better definition of the cortical margins, and leveling of the surface without chondral erosions (arrows)

Figure 2. MRI Sagittal T1 weighted image: A) Database evaluation: Bony depression and a low signal lesion in the lateral femoral condyle (arrow). One-‐year follow-‐up (B) and 2-‐year follow-‐up (C) after mosaicplasty: substitution of the osteochondral lesion by a repairing tissue consistent with normal medulla and progressive restoring of the osteocartilaginous contour

Figure 3. Coronal FS T2 weighted image: A) Database evaluation: Osteochondral lesion with unstable fragment in the lateral aspect of the medial femoral condyle. B) and C) Respectively 1 and 2 years after mosaicplasty, demonstrate the healing progression, showing engraftment and leveling of the chondral surface (arrow).

Figure 4. Axial FS T2 weighted image: A) Early osteochondral lesion (arrow). B) and C) Follow-‐up MRIs 1 and 2-‐year period after mosaicplasty, showing progressive filling of the chondral defect and leveling of the articular surface