一期前后路联合手术治疗多节段前后受压的脊髓型颈椎病

Determination of selenium in eggs by microwave digestion-atomic fluorescence spectrometry

目的探讨一期前后路联合手术治疗多节段前后受压的脊髓型颈椎病疗效。方法对28例前后方同时受压的严重颈椎病患者,采用一期前路减压（椎间盘摘除或椎体次全切除）、自体髂骨植骨或钛笼自体骨植骨、颈前钢板固定,后路单开门丝线缝合或CENTER PIECE固定,观察脊髓功能恢复情况、颈椎稳定情况及植骨融合率。结果随访12～36个月,平均13.7个月,28例皆获得骨性愈合,术后融合节段稳定,颈椎生理曲度得到良好重建及维持,脊髓功能均有不同程度恢复。结论一期前后路联合手术治疗前后受压的严重脊髓型颈椎病有助于脊髓的功能恢复及颈椎稳定性的重建。

Through comparision of two sample pre-treatment methods,a microwave digestion-atomic fluorescence spectrometry method for the determination of selenium in eggs was established.The linear range was 0~250ng/mL（r=0.994）,the detection limit was 0.24ng/mL and the recovery was 98.29%~128.57%.The method is fast and accurate.The experimental results show that the selenium content in common eggs is about 0.18mg/kg and in selenium-enriched eggs it is about 0.51mg/kg.