Twenty-seven patients with pain due to the imbalance of the body were examined. Clinical evaluation of patients before and after treatment included a general orthopedic examination, computer optical topography, surface electroneuromyography. The main group (17 patients) received injections of the drug lantoks in spastic muscles, the control group received a standard set of treatment to relieve spasticity (massage, exercise therapy, FTL, pharmacotherapy). The treatment gave a significant difference between the main and control groups in the results of changing the parameters of posture and electrophysiological parameters of muscle as well as the duration of pain relief. The results of the study confirm a significant impact of the local muscle relaxation on the parameters of posture. The high efficacy of "Lantoks" in the reconstruction of functional parameters in the groups of spastic muscles was shown.