目的:分析应用掌侧接骨板方法治疗桡骨远端die-punch骨折的临床可行性。方法:选取我院2014年12月~2015年12月已接受掌侧接骨板治疗的远端die-punch骨折患者32例为对象。32例患者的die-punch骨折类型主要有三种,为纵向劈裂类型、掌侧类...目的:分析应用掌侧接骨板方法治疗桡骨远端die-punch骨折的临床可行性。方法:选取我院2014年12月~2015年12月已接受掌侧接骨板治疗的远端die-punch骨折患者32例为对象。32例患者的die-punch骨折类型主要有三种,为纵向劈裂类型、掌侧类型、背侧类型。治疗所用的接骨板的类型为万向双柱锁定加压类型及2.4 mm T类型。患者手术后选择性进行一些功能恢复训练,如术后1个月内行手掌和指关节的活动,术后超1个月行腕关节活动训练。对32例患者进行随访,相关内容有X片、DASH评分、腕部是否出现畸形、并发症情况、握力、腕关节活动情况。探究采用不同die-punch骨折类类型和不同接骨板类型患者之间上述指标的差异。结果:成功随访了32例患者,经X片发现骨折愈合状况良好,且关节面也较为平整,未出现并发症和腕部畸形现象。不同die-punch骨折类型和不同接骨板类型患者DASH评分、握力、腕关节活动状况差异均无统计学意义(P>0.05)。结论:应用掌侧接骨板方法治疗桡骨远端die-punch骨折具有临床可行性。展开更多
Vanadium pentoxide, borax, boron carbide and sodium fluoride were used to grow vanadium carbide coating on die steel（Cr12, Cr12MoV） surface at 950 ℃ by TD process, which extended the life period of Cr12 and Cr12MoV...Vanadium pentoxide, borax, boron carbide and sodium fluoride were used to grow vanadium carbide coating on die steel（Cr12, Cr12MoV） surface at 950 ℃ by TD process, which extended the life period of Cr12 and Cr12MoV as punching die. Kinetics of vanadium carbide coating growth was brought forward and verified by comparison of the mathematical model with the experimental results. The thickness of coating was illustrated by SEM. The chemical constituent of coating and remnants were tested by XRD. To increase the thickness, rare earths （FeSiRe23） were added to the borax salt bath. The electronic probe microanalysis （EPMA） revealed that the addition of rare earths could decrease carbon concentration in the coating and increase the depth of vanadium carbide coating.展开更多
文摘目的:分析应用掌侧接骨板方法治疗桡骨远端die-punch骨折的临床可行性。方法:选取我院2014年12月~2015年12月已接受掌侧接骨板治疗的远端die-punch骨折患者32例为对象。32例患者的die-punch骨折类型主要有三种,为纵向劈裂类型、掌侧类型、背侧类型。治疗所用的接骨板的类型为万向双柱锁定加压类型及2.4 mm T类型。患者手术后选择性进行一些功能恢复训练,如术后1个月内行手掌和指关节的活动,术后超1个月行腕关节活动训练。对32例患者进行随访,相关内容有X片、DASH评分、腕部是否出现畸形、并发症情况、握力、腕关节活动情况。探究采用不同die-punch骨折类类型和不同接骨板类型患者之间上述指标的差异。结果:成功随访了32例患者,经X片发现骨折愈合状况良好,且关节面也较为平整,未出现并发症和腕部畸形现象。不同die-punch骨折类型和不同接骨板类型患者DASH评分、握力、腕关节活动状况差异均无统计学意义(P>0.05)。结论:应用掌侧接骨板方法治疗桡骨远端die-punch骨折具有临床可行性。
基金Funded by the National Natural Science Foundation of China(No.50675165)the National Key Technology R&D Program(No.2006BAF02A29)
文摘Vanadium pentoxide, borax, boron carbide and sodium fluoride were used to grow vanadium carbide coating on die steel（Cr12, Cr12MoV） surface at 950 ℃ by TD process, which extended the life period of Cr12 and Cr12MoV as punching die. Kinetics of vanadium carbide coating growth was brought forward and verified by comparison of the mathematical model with the experimental results. The thickness of coating was illustrated by SEM. The chemical constituent of coating and remnants were tested by XRD. To increase the thickness, rare earths （FeSiRe23） were added to the borax salt bath. The electronic probe microanalysis （EPMA） revealed that the addition of rare earths could decrease carbon concentration in the coating and increase the depth of vanadium carbide coating.
