Objective To study the complications of translaminar microendoscopic discectomy and their prevention and management. Methods The complications of translaminar microendoscopic discectomy performed on 487 cases of lumbar disc herniations were retrospectively analyzed. Results Most of the complications were seen in the first 50 cases, which included intraoperative CSF leak (8 cases, 1.64% ), cauda equina damage (1 case,0.21%) nerve root damage (1 case,0.21%) and inflammation of intervertebral disc (1 case,0.21%). Three patients (0.62%) converted into standard open lumbar disc surgery because epidural bleeding was difficult to control under endoscope. Conclusions There is a direct correlation between the compliations and the clinical experience in this technique. The complications of translaminar microendoscopic discectomy at the early stage are significantly higher than those of open techniques, but they are rarely seen at the later stage.

Objective To understand the status of knowledge and attitude of schistosomiasis control among the human populafion in schistosomiasis transmission-controlled area of Changqiu mountainous areas.Methods The subjects were selected by the random cluster sampling method among residents and students in these alias,then they were investigated by questionnaire.Resuits A total of 150 residents and 209 students were selected.There were 60% of the residents whose awareness rates of the knowledge on schistosomiasis control were above 90%.The correction rates of the questions in residents were between 99.30% and 100%.and the awareness rates about the questionswhether re-infection would occure after schistosomiasis was cured and the remedy for schistosomiasisof female adults were both 75.40%.The correction rates of the two question8 on attitude and behaviour of schistosomiasis control in adults were above 80.00%.In students'questionnaires.the awareness rates of knowledge on schistosomiasis control were above 90%.except the two questions on the shape of the snailand the infection-risk months of schistosomiasis.The correction rates of attitude and behaviour of schistosomiasis control were aslo above 80%.Conclusion The correction rates of knowledge,attitude and behaviour of schistosomiasis control of adults and students have reached the national goal of schistosomiasis control in 2008.