目的探讨不同内固定对胸腰椎骨折患者Cobb角度、椎管占位率、椎体高度比的影响。方法选择某院2014-01—2015-12收治的胸腰椎骨折患者80例,按照治疗方法的不同分为观察组(40例,经伤椎置钉内固定)和对照组(40例,给予跨伤锥短节段内固定)...目的探讨不同内固定对胸腰椎骨折患者Cobb角度、椎管占位率、椎体高度比的影响。方法选择某院2014-01—2015-12收治的胸腰椎骨折患者80例,按照治疗方法的不同分为观察组(40例,经伤椎置钉内固定)和对照组(40例,给予跨伤锥短节段内固定)。观察两种手术效果。结果两组术后7 d VAS评分均明显下降,疼痛程度均有所减轻,术后7 d时,观察组VAS评分明显低于对照组,组间比较,差异有统计学意义,P<0.05;术后7 d观察组Cobb角度、椎管占位率、伤椎椎体前缘高度比明显优于对照组,组间比较,差异有统计学意义,P<0.05;术后1年观察组Cobb角度、椎管占位率、伤椎椎体前缘高度比明显优于对照组,组间比较,差异有统计学意义,P<0.05。结论经伤椎椎弓根螺钉内固定治疗胸腰椎骨折是一种行之有效的方法。展开更多
Based on an available parking space occupancy （APSO） survey conducted in Nanjing, China, an APSO forecasting model is proposed. The APSO survey results indicate that the time series of APSO with different time-secti...Based on an available parking space occupancy （APSO） survey conducted in Nanjing, China, an APSO forecasting model is proposed. The APSO survey results indicate that the time series of APSO with different time-sections are periodical and self-similar, and the fluctuation of the APSO increases with the decrease in time-sections. Taking the short-time change behavior into account, an APSO forecasting model combined wavelet analysis and a weighted Markov chain is presented. In this model, an original APSO time series is first decomposed by wavelet analysis, and the results include low frequency signals representing the basic trends of APSO and several high frequency signals representing disturbances of the APSO. Then different Markov models are used to forecast the changes of low and high frequency signals, respectively. Finally, integrating the predicted results induces the final forecasted APSO. A case study verifies the applicability of the proposed model. The comparisons between measured and forecasted results show that the model is a competent model and its accuracy relies on real-time update of the APSO database.展开更多
文摘目的探讨不同内固定对胸腰椎骨折患者Cobb角度、椎管占位率、椎体高度比的影响。方法选择某院2014-01—2015-12收治的胸腰椎骨折患者80例,按照治疗方法的不同分为观察组(40例,经伤椎置钉内固定)和对照组(40例,给予跨伤锥短节段内固定)。观察两种手术效果。结果两组术后7 d VAS评分均明显下降,疼痛程度均有所减轻,术后7 d时,观察组VAS评分明显低于对照组,组间比较,差异有统计学意义,P<0.05;术后7 d观察组Cobb角度、椎管占位率、伤椎椎体前缘高度比明显优于对照组,组间比较,差异有统计学意义,P<0.05;术后1年观察组Cobb角度、椎管占位率、伤椎椎体前缘高度比明显优于对照组,组间比较,差异有统计学意义,P<0.05。结论经伤椎椎弓根螺钉内固定治疗胸腰椎骨折是一种行之有效的方法。
基金The National Natural Science Foundation of China(No50738001)the National Basic Research Program of China (973Program) (No2006CB705501)
文摘Based on an available parking space occupancy （APSO） survey conducted in Nanjing, China, an APSO forecasting model is proposed. The APSO survey results indicate that the time series of APSO with different time-sections are periodical and self-similar, and the fluctuation of the APSO increases with the decrease in time-sections. Taking the short-time change behavior into account, an APSO forecasting model combined wavelet analysis and a weighted Markov chain is presented. In this model, an original APSO time series is first decomposed by wavelet analysis, and the results include low frequency signals representing the basic trends of APSO and several high frequency signals representing disturbances of the APSO. Then different Markov models are used to forecast the changes of low and high frequency signals, respectively. Finally, integrating the predicted results induces the final forecasted APSO. A case study verifies the applicability of the proposed model. The comparisons between measured and forecasted results show that the model is a competent model and its accuracy relies on real-time update of the APSO database.
