Microsurgical treatment of type I diastematomyelia in 75 children

Objective To evaluate the therapeutic effect of microsurgicaltreatment for childrenwith type Ⅰ diastematomyelia.Methods The clinical data of 75 cases including neurological examination,MRI and three dimensional CT reconstruction were collected.The microsurgical treatment of type Ⅰ diastematomyeliawas performed in all patients.Neurological examination,high-speed bone drill and microscope were used during operation.Electrophysiological examination was performed before and after surgery.The microsurgical treatment of Lipoma Tethered cord syndromewas performed in all cases and the therapeutic effectiveness after operation was analyzed according to clinical symptoms,urodynamicalexamination and electrophysiological examination inthe patients.Results According to Cheng -bin grading system,the short term effects were assessedas following:recovery in 7 cases,excellent in 24,effeetive in 40 and ineffective in 4.The markedly effective rate was 94.6％.There were significant differences in urodynamicalexamination between presurgery and postsurgery.There was significant difference in electrophysiologicalexamination between presurgery and postsurgery.Conclusions The microsurgery should be performed on tethered cord syndrome as soon as possible.The application of intraoperative neuroelectrophysiological monitoring and high-speed bone drill can be used for type Ⅰ diastematomyeliain children. Key words: Diastematomyelia;  Microsurgery;  Electropysiology;  Children