Methods:Thirty healthy white New Zealand adult rabbits wi th bilateral,full-thickness osteochondral defects in the cartilage surfaces of intercondylar fossas were used.

• 方法:于30只兔股骨髁间窝软骨面处钻孔,术后左后肢膝关节缺损处以低强度脉冲超声辐照,右后肢予以假照作为对照。