超低频脉冲电磁场促进颌骨愈合的研究

EXPERIMENTAL AND CLINICAL STUDIES OF ULTRALOW FREQUENCY PULSED ELECTROMAGNETIC FIELDS FOR ENHANCING JAW FRACTURES HEALING

本文介绍了自行研制的一种低频脉冲电磁场颌骨愈合仪，该仪大小为１１．２ｃｍ×７．４ｃｍ×３．６ｃｍ，利用特制的可塑形治疗线圈安置于颌骨骨折部位，在治疗线圈中通以频率为２．２Ｈｚ的脉冲方波电流，使其在骨折部位激发出低频脉冲电磁场，线圈几何中心磁场平均值约为１．９Ｇｓ，动物实验结果表明该仪有明显促进骨愈合的作用，临床应用颌骨骨折１５例也取得了满意疗效，在机理上作者支持第二信使学说，即电磁场可能是通过激活骨折处成软骨细胞的溶菌酶来促进新骨生长的。

This paper reports a pulsing electromagnetic fields instrument for enhancing jaw fracture healing.The instrument is about 11.2cm×7.4cm×3.6cm in size with liberation of squareshaped waveform and frequency of 2.2Hz and mean magnetic field strength of 1.9Gs and single castable coil.It was releaved that the plusing electromagnetic fields instrument could obviously promote fracture healing in animal experimental.Clinically 15 cases of jaw fractures showed enhancing effect.We support the second messenger doctrine in base theory,that the antibacterium enzymes of soft bone cell in fracture were stimulated possible by electromagnetic field.