"Similar to other cartilage repair and reconstruction techniques, postoperative results in graft integration and complications of osteochondral allograft transplantation can be evaluated with MR imaging. This includes the assessment of defect filling, the peripheral integration and morphologic characteristics of the bony and cartilaginous portions of the osteochondral allograft. MRI sequences most commonly used for the evaluation of cartilage are proton density weighted, intermediate weighted images and T2 weighted images with and without fat saturation and 3D fat-saturated T1 weighted images 4,5."
"Similar to other cartilage repair and reconstruction techniques, postoperative results in graft integration and complications of osteochondral allograft transplantation can be evaluated with MR imaging. This includes the assessment of defect filling, the peripheral integration and morphologic characteristics of the bony and cartilaginous portions of the osteochondral allograft. MRI sequences most commonly used for the evaluation of cartilage are proton density weighted, intermediate weighted images and T2 weighted images with and without fat saturation and 3D fat-saturated T1 weighted images 4,5."
Expected headings
"History"
"Radiographic features"
"MRI"
"Radiological report"
"There are shell type and deep type allografts with different depths of subchondral bone."
"poor graft integration (e.g. due to peripheral chondrocyte death from mechanical trauma)"
"Bone marrow oedema like signal persisting more than 12 months, fluid-signal intensity, fissure or subchondral cyst formation as well as articular surface collapse may indicate poor graft integration."