离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示，这已是非法定单位写法了。正确的写法是：当低速离心时用r／min表示；当高速或超速离心时用相对离心力“xg”表示，g是斜体，前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示,这已是非法定单位写法了。正确的写法是：当低速离心时用r/min表示;当高速或超速离心时用相对离心力“×g”表示,g是斜体,前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示，这已是非法定单位写法了。正确的写法是：当低速离心时用r／min表示；当高速或超速离心时用相对离心力“×g”表示，g是斜体，前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示,这已是非法定单位写法了。正确的写法是：当低速离心时用r／min表示;当高速或超速离心时用相对离心力“xg”表示,g是斜体,前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示,这已是非法定单位写法了。正确的写法是：当低速离心时用r／min表示;当高速或超速离心时用相对离心力“×g”表示,g是斜体,前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示,这已是非法定单位写法了。正确的写法是：当低速离心时用r／min表示;当高速或超速离心时用相对离心力“xg”表示,g是斜体,前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示,这已是非法定单位写法了。正确的写法是：当低速离心时用r／min表示;当高速或超速离心时用相对离心力“xg”表示,g是斜体,前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示,这已是非法定单位写法了。正确的写法是：当低速离心时用r/min表示;当高速或超速离心时用相对离心力＂×g＂表示,g是斜体,前面是乘号。     

离心机转速的写法及相对离心力的正确表示

有的作者将离心机转速用rpm表示,这已是非法定单位写法了。正确的写法是：当低速离心时用r／min表示：当高诛或超诛离心时用相对离心力“Xg”表示,g是斜体,前面是乘号。     

基于真实CT数据骨科虚拟手术计划在髋臼骨折手术中的运用

背景：骨科虚拟手术计划有助于提高外科医生的手术精确性。 目的：探索计算机术前模拟手术技术在骨盆、髋臼骨折的治疗中的应用方法及临床价值。 方法：对13例骨盆及髋臼骨折患者进行螺旋CT影像扫描,将其DICOM数据输入个人计算机中Mimics软件,使用分割方法,于内固定前建立计算机模拟手术过程。 结果与结论：骨块分割出来和提取关节表面模型的平均时间为45 min(30~70 min),操作者可进行骨折复位与固定时间平均为28 min(16~45 min)。计划13例手术入路,最终12例完全采用,12例完全采用了模拟手术固定方法,1例部分采用了计划固定方法;螺钉数与术前计划一致的有10例患者,螺钉长度与术前计划一致的有8例,固定钢板与术前计划一致的11例。随访CT显示关节面解剖复位6例(46%),7例(54%)满意,没有螺钉穿入关节腔。说明通过计算机术前模拟手术,可以制定准确的手术方案,为指导实际手术提供数据支持。     

逆向静脉输液在老年性白内障术后患者中的应用

老年性白内障患者多合并有高血压、糖尿病、肾病等疾病,其血液流变学常发生异常,血液呈高粘滞状态[1]。另外由于生理变化和长期静脉输液常造成浅表静脉破坏严重,临床表现有静脉炎,静脉变硬,甚至闭塞,静脉输液穿刺容易失败。为提高患者手背浅静脉穿刺成功率和静脉利用率,笔者对老年性白内障术后患者采用手背远端浅静脉逆向穿刺的方法,在临床应用中收到满意的效果。1资料与方法1.1临床资料选择2005年7月至2006年12月老年性白内障术后患者78例,其中男51例,女27例,年龄60~82岁,平均70.3岁。术后单日采用顺向静脉输液,双日采用逆向静脉输液。1.2…     

骨科-康复单元一体化康复治疗对单髁置换术后膝关节功能的影响*

目的探讨单髁置换术后骨科-康复单元模式一体化康复治疗对膝关节功能的影响。方法将2014年3月至2018年2月本院单髁置换术治疗膝关节骨关节炎的患者32例,随机分为一体化康复组17例及对照组15例,分别进行骨科-康复单元模式一体化康复训练和传统模式康复训练。术后第1、3、6、12个月进行膝关节HSS评分及VAS评分。结果全部32例患者均得到1年以上随访,一体化康复组患者在术后第1、3、6个月时的HSS评分较对照组更高,两组比较差异均有统计学意义(P0.05),术后第12个月时两组HSS评分差异无统计学意义(P0.05);术后第1、3、6、12个月时VAS评分两组比较差异无统计学意义(P0.05)。结论对单髁置换患者进行骨科-康复单元模式一体化康复治疗能较早促进膝关节功能恢复,提高步行能力,同时也不增加膝关节疼痛。     

Efficacy and tolerability of prolonged linezolid therapy in the treatment of orthopedic implant infections

The aim of the study presented here was to assess the efficacy and tolerability of linezolid in the treatment of orthopedic implant infections (OII). Eighty-five patients with an OII treated with linezolid were prospectively followed up for a minimum of 12 months from the end of antibiotic therapy. Outcome was evaluated in relation to the duration and type of symptoms (acute or chronic) and the retention or removal of the implant. For acute and chronic infections, the respective success rates were 100 and 92.3% when the implant was removed and 72.2 and 42.8% when it was not. The median length of linezolid treatment in acute and chronic infections was 47 and 60 days, respectively. Thrombocytopenia was observed in four (4.7%) patients and anemia in five (5.8%). The results suggest oral linezolid is an effective and well-tolerated alternative for treating OII.     

Ischaemic stroke in children secondary to post varicella angiopathy

Varicella in childhood is a self-limiting disease, which usually follows a benign course. However, complications, although rare, may have serious consequences. Ischaemic stroke secondary to post varicella angiopathy is a well-described complication and is estimated to account for up to a third of all strokes in infants. We present three previously healthy children who presented to our centre with ischaemic cerebrovascular infarction due to varicella angiopathy. All three children first presented within six weeks after onset of varicella infection and had MRI changes characteristic of ischaemic stroke secondary to post varicella angiopathy. While one child made an excellent recovery being left with only a minor deficit, the remaining two children were left with considerable morbidity severely affecting quality of life. The varicella vaccine has been proven to be well tolerated, safe and effective. We conclude that varicella vaccination should be considered for inclusion in the vaccination schedule to prevent serious complications which while rare may have devastating consequences.     

Posttraumatic stress symptoms in children following orthopedic or traumatic brain injury

Examined posttraumatic stress (PTS) symptoms in children following pediatric traumatic brain injury (TBI). Children (ages 6-12) with TBI (n = 81) and orthopedic injury (01; n = 59) were assessed 6 and I2 months postinjury. Parents of children with severe TBI reported higher levels of child PTS symptoms than did parents of children with moderate TBI or 0 1 at the 6- and 12-month follow-ups. Group differences in child-reported PTS symptoms emerged at the 12-month follow-up with higher symptom levels reported by children with severe TBI than by those with moderate TBI or OI. At both follow-ups, rates of clinically significant symptom levels were higher in the severe TBI group than in the moderate TBI or OI groups. The group differences in parent and child reports were significant even after taking ethnicity, social disadvantage, and age at injury into account. Parent and child reports of child PTS symptoms were related to family socioeconomic status. Implications for clinical intervention with children and families following pediatric TBI are discussed.     

高血压性脑出血70例术后死亡原因分析

目的总结高血压脑出血（HCH）术后死亡的原因，探讨手术指征，选择合适的手术病例，降低死亡率。方法对70例HCH手术后死亡患者的临床资料进行回顾性分析，找出与死亡相关的主要因素。结果术前脑疝形成使中枢衰竭在1周内死亡者43例，其中双侧瞳孔散大30例，单侧瞳孔散大13例；各种并发症在2-3周内死亡者27例：肺部感染11例，上消化道出血6例，急性肾功能衰竭5例，多脏器功能衰竭3例，心功能衰竭1例，体液代谢紊乱1例。结论脑出血后脑疝形成及术后多脏器并发症是术后死亡的主要原因。脑血肿残腔再出血，恶性脑肿胀，营养衰竭是术后死亡的危险因素。及时手术减少术前脑疝形成，术后严格监测生命体征，稳定血压，早期对并发症预防性治疗及合理的营养支持是降低死亡率的关键。     

食管癌术后吻合口瘘防治的临床分析

近几年来,食管癌已成为消化系统中的最常见恶性肿瘤,而吻合口瘘是其最严重发症之一,不仅引起患者住院时间延长、经济费用增加,而且容易引起胸腔严重感染、脓毒症、多器官功能衰竭而致死亡[1].因此,降低吻合口瘘的发生率和死亡率一直是胸外科医生努力探讨的问题.本文共收集食管癌患者256例,术后吻合口瘘18例.现将食管癌术后吻合口瘘防治的临床分析报告如下.