[Objective]To introduce cervical laminoplasty fixation with Ti-mesh plates in posterior open door decompression and evaluate its clinical outcomes.[Method]A total of 27 cases with cervical spinal stenosis were treated by laminoplasty with mini titanium plates.The mean following-up time were 18 months.[Result]All cases were primary healed,the preoperative symptoms were improved satisfactorily with 88% good to excellent outcome over 6 months following-up.One case without relief of nurological symptoms underwent an additional anterior multilevel corpectomy.The surgical lamina achieved bone fusion without stenosis.[Conclusion]The laminoplasty with Ti-mesh plates restore spinal posterior construction with less loss of range of motion and maintain larminar in open position without stenosis.The surgical procedure is easier to perform with less complication rates.

[Objective]To evaluate the clinical outcome of anterior correction of thoracolumbar scoliosis utilizing Kaneda anterior scoliosis system(KASS).[Method]There were 43 cases of thoracolumbar scoliosis treated by anterior disc excision,interbody fusion and correction with KASS,male 17 cases,female 26 cases,idiopathic scoliosis 35 cases,and congenital scoliosis 8 cases.[Result]All cases had satisfactory correction results and the corrections were well maintained at average 22 months follow-up.The Cobbs angle of preoperation and postoperation were 66?(43?～98?)and 18?(0?～32?),the corrective rate was 91.7%.No case had death or neurological paralysic symptom.[Conclusion]Anterior correction of thoracolumbar scoliosis utilizing KASS can achieve satisfactory results with less fusion levels and can maintain the correction.It is a valuable surgical procedure for the correction of thoracolumbar scoliosis.

Objective Using event-related potentials(ERPs),to study the effect and mechanism of negative emotion accumulation hepatic insufficiency on working memory in normal people.Methods Fifty subjects in each of the emotionally stable group and emotionally unstable group were given two load tasks(0-back and 1-back)in the N-back paradigm,the reaction time and correct rate were recorded,and the ERPs components N200 and P300 were detected.The latency and amplitude of P300 were analyzed statistically.Results ①Compared with the emotionally stable group,the emotionally unstable group had a longer reaction time(P<0.05).②Compared with the emotionally stable group,the subjects in the emotionally unstable group had prolonged N200 latency,decreased P300 amplitude significantly(P<0.05),and P300 latency had a tendency to extend(P<0.1).Conclusion Long-term accumulation of negative emotions and liver failure in normal people have the performance of decreased working memory,which may be related to the reduction of attention resource allocation and the impairment of cognitive processing function.