Characterization of human cancellous and subchondral bone with respect to electro physical properties and bone mineral density by means of impedance spectroscopy

Electromagnetic stimulation is clinically used to support bone healing and regeneration [1 –4], particularly in case of non-unions and avascular necrosis of the femoral head. Based on the approach of Kraus–Lechner [3], a bipolar induction screw system (BISS) for treatment of avascular head necrosis was proposed [1]. The Kraus–Lechner method applies an electrical field between 5 and 70V/m, a voltage of 0.7V and a frequency of 20Hz on the bone lesions [1,3,5]. Thereby, the patient-individual electric field distribution, especially in the human femoral head, is unknown.
Source: Medical Engineering and Physics - Category: Biomedical Engineering Authors: Source Type: research