Gauging electrical properties of bone with a bioimpedance-sensing drill

This study aims to demonstrate that electrical impedance
spectroscopy can be integrated within a standard surgical drill to distinguish between bone types.
Approach : A custom bearing and insulated drill bit were designed to collect 10 cortical and
cancellous impedance measurements from ex vivo femurs (2 pigs) and 80 bone measurements from in situ
femurs (4 pigs). In the in situ study, two return electrodes (simulating a lip-c...

Source: Physiological Measurement - January 18, 2019 Category: Physiology Authors: Rebecca D Butler and Ryan J Halter Source Type: research