[NMR tomography of bone-cartilage transplants in the knee joint: transplant morphology and an attempt at the quantitative assessment of cartilage changes].
MRT control examinations were carried out on 15 patients with allogenic bone-cartilage transplants in the knee. Spin-echo and gradient-echo sequences were obtained by using a flat surface coil. The results were compared with arthroscopic and operative findings. In 8 symptom-free patients, there was inclusion of the bone implant with narrow, but smooth, cartilage. 7 patients with recurrence of symptoms showed various complications such as oedema of the marrow, exudative synovitis, cartilage oedema, degenerative cartilagenous changes with regeneration of fibro-cartilage and localized cartilage defects. Spin-echo sequences were useful for showing bone, whereas gradient-echo sequences proved better for showing changes in the cartilage. MRT can be recommended as the method of choice for the non-invasive control of bone-cartilage transplants.
König
H
H
Radiologische Klinik, Universität Tübingen.
Skalej
M
M
Höntzsch
D
D
Aicher
K
K
D000293:Adolescent; D000328:Adult; D001182:Arthroscopy; D016025:Bone Transplantation; D001842:Bone and Bones / Q000473:pathology; D002358:Cartilage, Articular / Q000473:pathology / Q000637:transplantation*; D006801:Humans; D007718:Knee Injuries / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D007719:Knee Joint / Q000473:pathology* / Q000601:surgery; D008279:Magnetic Resonance Imaging / Q000379:methods; D010008:Osteochondritis Dissecans / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D012008:Recurrence
Kernspintomographie von Knochen-Knorpel-Transplantaten im Kniegelenk: Transplantat-Morphologie und Versuch einer quantitativen Beurteilung der Knorpelveränderungen.