美使用磁铁纠正儿童“桶状胸”

一项研究将检测使用磁铁纠正桶状胸，就象使用矫形器逐渐纠正牙齿一样。

这种"磁铁微小-移动方案"也叫做3MP，是由California-San Francisco大学(San Francisco, USA)儿童医院的研究人员开发的。3MP使用的设备包括2部分：一种钛包裹的磁铁-只有1/4英寸大小，在门诊随访的时候，手术植入儿童的胸骨上，第2块磁铁放置于重量很轻的塑料绑带中，儿童在穿衣服的时候佩带。这两块磁铁之间的吸引力将绑带定位，产生一种持续的可控制的外部拉力将骨骼、胸腔壁重新塑形。因为内部磁铁就放置在皮肤之下，患者可以在手术当天回家，而没有什么不舒适。根据畸形程度不同，儿童佩带这种绑带3-12个月。

Using Magnets to Correct 'Sunken Chest'
 
A new study will examine the use of magnets to correct sunken chest in the same way that orthodontic braces gradually realign teeth.

The "Magnetic Mini-Mover Procedure," known as 3MP, was developed by researchers at the University of California - San Francisco (San Francisco, USA) Children's Hospital. 3MP uses a device that includes two parts: a titanium-encased magnet about the size of a quarter that is surgically attached to the child's breastbone during an outpatient visit, and a second magnet embedded in a lightweight plastic brace that the child wears under clothing. The attraction between the two magnets holds the brace in place, creating a steady, controlled, outward pull on the internal magnet to reshape the bone, cartilage, and chest wall. Because the internal magnet is placed just under the skin during an outpatient visit, the child can go home on the day of the procedure with relatively little discomfort. The child wears the brace for three to 12 months, depending on the severity of the deformity.