[In situ migratory algodystrophies of the knee. Value of modern imaging]

The authors report three cases of migratory algodystrophy of the knee. Repeated isotope bone scan, CT scan and nuclear magnetic resonance were used to monitor the movement in situ of the pathophysiological process of algodystrophy. In one case, CT scan revealed localised hypertrophy of the soft tissues located immediately over the bone lesions.