Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1760636 | Ultrasound in Medicine & Biology | 2011 | 9 Pages |
Abstract
Previously, we successfully applied a new method composed of drilling, bone marrow transplantation (BMT), external fixation and low-intensity pulsed ultrasound (LIPUS) for the clinical treatment of Kienböck's disease. The purpose of this study was to investigate whether bone regeneration can be induced by LIPUS and/or multiple drilling and/or BMT within a severely necrotic small-bone rabbit model. Eighteen rabbits were divided into three groups (BMT, drilling and control) and LIPUS stimulation was introduced daily for 8 weeks post-transplantation. Next, 12 additional rabbits were produced for the BMT group and LIPUS stimulation was introduced daily for 4 and 12 weeks (n = 6 for each). Histopathologically, new bone formations were rarely observed in the drilling and control groups. In the BMT group, the mineralizing surface areas of LIPUS(+) showed a significant increase compared with LIPUS(â) for 8 weeks. LIPUS treatment alone did not accelerate the revitalization of necrotic bones. However, LIPUS combined with BMT tended to promote new bone formation.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
Takeshi Ogawa, Tomoo Ishii, Hajime Mishima, Tomofumi Nishino, Arata Watanabe, Naoyuki Ochiai,