Orthostatic iliopsoas-lumbar spasm in torsional dystonia and parkinsonism

In the study of the pathogenesis of muscular dystonic syndromes, it is very important to identify the role of central and peripheral factors and their correlation in the formation of the disease pattern. It is known that the peripheral focus often plays a significant role in the inversion of pathological mechanisms in conditions of decreased activity of the central ones. The correlation of these factors can be illustrated by the recently described clinical picture of iliopsoas lumbar spasm, which is not so rare in the practice of a neurologist.