Title :
Identification of widely applicable configurations for the electrostimulative total hip revision system
Author :
Zimmermann, U. ; van Rienen, Ursula
Author_Institution :
Fac. of Comput. Sci. & Electr. Eng., Univ. of Rostock, Rostock, Germany
fDate :
Aug. 28 2012-Sept. 1 2012
Abstract :
Since the 1980s electrostimulation is used to accelerate the healing of fractures and bone defects. In prior works this effect has been implemented in a numerical model of an electrostimulative hip revision cup which was optimized using a multi-objective evolutionary algorithm. The aim of our simulations is to design an implant which provides optimal electric fields in the acetabular region enhancing the reconstruction of the pelvic bone in such way as to improve the fixation of the prosthesis in the surrounding bone. In the present work we will show that this multi-objective algorithm can also be used to identify a small amount of configurations of the implant that will be able to stimulate a wide range of pelvic bones with different acetabular defects.
Keywords :
bioelectric phenomena; bone; medical computing; prosthetics; acetabular defect; acetabular region; electrostimulative hip revision cup; electrostimulative total hip revision system; multi-objective algorithm; multi-objective evolutionary algorithm; optimal electric field; pelvic bone reconstruction; prosthesis; Electric fields; Electrodes; Implants; Optimization; Pelvic bones; Solid modeling; Algorithms; Arthroplasty, Replacement, Hip; Electric Stimulation; Electric Stimulation Therapy; Electrodes, Implanted; Hip Prosthesis; Humans; Prosthesis Design;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-4119-8
Electronic_ISBN :
1557-170X
DOI :
10.1109/EMBC.2012.6346607