Research on Energy Distribution During Osteoarthritis Treatment Using Shock Wave Lithotripsy

Extracorporeal shock wave treatment is capable of providing a non-surgical and effective treatment modality for patients suffering from osteoarthritis. The major objective of current works is to investigate how the shock wave (SW) field would change if a bony structure exists in the path of the acou...

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Bibliographic Details
Published inSheng wu yi xue gong cheng xue za zhi Vol. 32; no. 2; p. 300
Main Authors Zhang, Shinian, Wang, Xiaofeng, Zhang, Dong
Format Journal Article
LanguageChinese
Published China 01.04.2015
Subjects
Finite Element Analysis
Humans
Lithotripsy
Models, Theoretical
Osteoarthritis - therapy
Photography
Software
Sound
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Summary:Extracorporeal shock wave treatment is capable of providing a non-surgical and effective treatment modality for patients suffering from osteoarthritis. The major objective of current works is to investigate how the shock wave (SW) field would change if a bony structure exists in the path of the acoustic wave. Firstly, a model of finite element method (FEM) was developed based on Comsol software in the present study. Then, high-speed photography experiments were performed to record cavitation bubbles with the presence of mimic bone. On the basis of comparing experimental with simulated results, the effectiveness of FEM model could be verified. Finally, the energy distribution during extracorporeal shock wave treatment was predicted. The results showed that the shock wave field was deflected with the presence of bony structure and varying deflection angles could be observed as the bone shifted up in the z-direction relative to shock wave geometric focus. Combining MRI/CT scans to FEM modeling is helpful for better standardizing the treatment dosage and optimizing treatment protocols in the clinic.
ISSN:1001-5515