Influence of the fusion of bone graft in spine of rabbit treated with lower intensity ultrasound / 中国骨伤

ABSTRACT

<p><b>OBJECTIVE</b>To observe the influence of the fusion of bone graft in spine of rabbits which were treated with lower intensity ultrasound.</p><p><b>METHODS</b>Forty 12-month-old rabbits were made to be the models of bone graft in post-lateral between two homonymy processus transverses in lumbar, and divided into treatment group (B) and control group (A) randomly. Twenty rabbits of treatment group were treated with lower intensity ultrasound, killed after six weeks, and took radiological examination, measured indexs of biomechanics.</p><p><b>RESULTS</b>After 6 weeks of fusion of bone graft, treatment group were higher 6%-7% (P> 0.05) in strength, rigidity, torque andantitwist, maxload than that of control group.</p><p><b>CONCLUSION</b>Lower intensity ultrasound can promote the speed and strength fusion of bone graft in young rabbits.</p>