We are to present a rare occurrence of large limb-threatening ulcer of the leg and foot in patient with thrombocytosis. Essential thrombocythemia was diagnosed based on peripheral blood platelet count and gen test findings. The improving of platelet count was obtained by oral hydroxyurea. Complex surgical treatment, including free-skin grafting, was performed with the excellent result. Two-year follow-up was retraced without any sign of ulcer recurrence.

The experience in treatment and rehabilitation of 100 patients with suppuration following total hip replacement and 60 patients with chronic osteomyelitis of proximal femur and acetabulum is presented. Patients' age ranged from 10 to 84 years. Removal of unstable metallic constructions (implant or fixator) and radical resection fistulosequestrnecrectomia by Girdlestone were performed in all patients. In postoperative period the complex program for the elimination of purulent process and rehabilitation measures were carried out. That program foresaw active and expedient control for compensation of the affected joint function. In all patients purulent inflammatory process was eliminated, weight-bearing hip joint neoarthosis with satisfactory function was formed. According to authors' opinion the formation of weight-bearing neoarthrosis is an adequate alternative to both revision joint replacement and arthrodesis in purulent process in proximal femur and acetabulum.

On the basis of the analysis of provided measurements results of time dependences and spectral structure of a switch transfer current with direct current machines at their serviceable condition, and also at various defects, the form of a curve and to a spectrum of a current depending on a technical condition of the machines are determined.

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