[The vertebroneurological problems of pain].

The following aspects of pain theory essential for clinical vertebroneurology were examined in article, namely: vertebral receptors irritation as the source of vertebral pains, multitude of vertebroneurological syndromes factors, psychogenic factors of pain experience, diagnostic estimation of pain and effectiveness of medical influences on ache. Unpunctuality and deontological unjustification of disease definition by pain sign as well as estimation of treatment results according to direct analgetic effect were emphasized.

[Contractile properties of crural muscles in patients with post-stroke movement disorders].

Disorders were detected in the contractile properties of tibial muscles in the patients with stroke-related motor disturbances depending on the degree of functional deficit. Maximum slow-down in the fast muscles and speeding of the slow ones was detected within half-year since the stroke.

[Contractile function of the anterior tibial muscle of man at different stages of the denervation-reinnervation process].

The contractile and electromyographic properties of the tibialis anterior muscle from the affected and normal side have been studied in 27 patients with lumbar radiculopathies. It was found, that at the early stages of denervation-reinnervation process (according B. M.

[Automatic analysis of the interference EMG of the brachioradial muscle in neuropathy of the radial nerve].

In 8 patients with radial neuropathy the authors studied histograms of distribution of potentials of motor units (PMU) by their duration, as well as of the number of intercrossings (T) and the mean amplitude of interference EMG of the musculus brachioradialis. The findings included a decrease in the T value and T/M ratio in the presence of an insignificant shift of the histograms and of the mean duration of PMU. With regard to the diagnosis of early neuropathies a reduction in the average value of T and T/M in the presence of ungraded voluntary tension of the muscle is diagnostically more important than changes in the duration of individual PMU.

[Diagnosis of variants of neuropathies using the standardized methodology of quantitative analysis of the interference EMG].

In examining 36 patients with neuropathies the authors used standardized leads and a quantitative analysis of the interferential EMG and established the criteria for the differential diagnosis of radiculopathies, neuropathies in particular. Comparison with the findings of analysis of potentials of motor units showed that a "myopathic" shift revealed in some patients was due to stage characteristics of denervation and re-innervation process.

[Fulminant and gradual evolution of the clinical manifestations of lumbar osteochondrosis].

A vertebroneurological examination of 187 patients with lumbar osteochondritis revealed the presence of two variants of its exacerbation: fulminant (occurring within 1-3 days) and gradual (with a longer period of progress). The fulminant variant was associated with tension of the cellular immunity expressed in a decreased index of leukocyte migration inhibition and the corresponding therapeutic effect of epsilon-aminocaproic acid.

[Role of neurotrophic control in the formation of vertebrogenic neural and myodystrophic syndromes].

The authors performed pathomorphological examinations in 19 patients with compressional-neural and myodystrophic syndromes of lumbar osteochondritis and also in 16 experimental animals with an impaired axoplasmic current. In the light of the modern understanding of the neurodystrophic control the authors discuss the mechanisms of the denervational-reinnervational process in muscles of patients with vertebrogenic pathology and myodystrophic disorders.

[Vertebrogenic subpiriform compression-ischemic neuropathy of the sciatic nerve with predominant lesions of fibers of the peroneal nerve (pathogenesis, clinical picture, treatment)].

Using clinical and instrumental methods of investigation, seven patients with vertebrogenic neuropathy of the lesser femoral nerve were examined with reference to three levels of compression: 1) diskoradicular , 2) the subpiriform space: 3) osteofibrous channel on the leg. The involvement of the lesser femoral nerve is facilitated by its considerable length and by a large number of vulnerable points on it. Cases of the combined signs of the impaired lesser femoral nerve fibers at three levels are explained by the theory of "double compression".

[Myofixation in the patho- and sanogenesis of lumbar osteochondrosis].

Neuroorthopedic , electromyographic and neuropsychological examinations of patients with lumbar osteochondrosis have shown that dynamic myofixation in health is regulated by the preceding muscular reactions. When these mechanisms are impaired, the disease is characterized by an early onset and a severe course. With the development of osteochondrosis the myofixation in the damaged spinal segment is regulated by the reflex responses to the impulses from the zone of the damaged disk and from the focus of aseptic inflammation developing there rather than by the preceding muscular reactions.

[Algesic trigger zones of the gastrocnemius muscle in lumbar osteochondrosis (clinico-pathomorphological and electromyographic analysis)].

Using clinical, morphological and electrophysiological methods, the authors studied the myalgic trigger zones of musculus gastrocnemius in 12 patients with lumbar osteochondrosis. The mechanisms of forming these zones are discussed with due regard for the contemporary notions on neurotrophy.