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目的:针对全口义齿初戴患者对义齿过高的期望和误解,心理方面存在的不同程度的障碍,以及在义齿适应时存在的现实困难,提出由主诊医师指导监督评价修正,协同患者进行适应性训练的计划,以帮助患者尽快适应义齿。方法:从日常门诊中选取初次镶全口义齿的患者分两组,对照组按常规,实验组实施月训练计划,观察两组适应情况及对义齿的满意程度。结果:实验组患者在复诊时情绪方面表现出乐观、积极、自信,对义齿的评价满意以上占绝大多数:两组全口义齿满意度具有统计学差异。结论:全口义齿戴牙后并不意味着主诊医师完成诊疗任务。对全口义齿初戴患者极有必要在医师继续指导下进行适应性训练,既能缩短适应期,又能使患者正确对待义齿修复,获得健康的心理。 相似文献
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目的:研究舌癌组织中淋巴管密度(lymphatic vessel density,LVD)和舌鳞状细胞癌患者淋巴道转移的相关性.方法:舌癌样本来自138例实施舌癌切除术的患者.利用单克隆抗体D2-40进行免疫组织化学染色.对照正常组织和肿瘤组织中LVD的差异.利用Spearman相关分析评估舌癌患者的LVD和临床病理因... 相似文献
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Objective: To investigate the properties of screwbone interface of expansive pedicle screw (EPS) in osteoporotic sheep by micro-CT and histological observation.
Methods: Six female sheep with bilateral ovariectomyinduced osteoporosis were employed in this experiment. After EPS insertion in each femoral condyle, the sheep were randomly divided into two groups: 3 sheep were bred for 3 months (Group A), while the other 3 were bred for 6 months (Group B). After the animals being killed, the femoral condyles with EPS were obtained, which were three-dimensionally-imaged and reconstructed by micro-CT. Histological evalu-ation was made thereafter.
Results: The trabecular microstructure was denser at the screw-bone interface than in the distant parts in expan-sive section, especially within the spiral marking. In the non- expansive section, however, there was no significant differ-ence between the interface and the distant parts. The regions of interest (ROI) adjacent to EPS were reconstructed and analyzed by micro-CT with the same thresholds. The three-dimensional (3-D) parameters, including tissue min- eral density (TMD), bone volume fraction (BVF, BV/TV), bone surface/bone volume (BS/BV) ratio, trabecular thickness (Tb.Th), and trabecular separation (Tb.Sp), were sig- nificantly better in expansive sections than non-expan-sive sections (P 〈 0.05). Histologically, newly-formed bony trabeculae crawled along the expansive fissures and into the center of EPS. The newly-formed bones, as well as the bones at the bone-screw interface, closely contacted with the EPS and constructed four compartments. Conclusions: The findings of the current study, based on micro-CT and histological evaluation, suggest that EPS can significantly provide stabilization in osteoporotic cancellous bones. 相似文献
Methods: Six female sheep with bilateral ovariectomyinduced osteoporosis were employed in this experiment. After EPS insertion in each femoral condyle, the sheep were randomly divided into two groups: 3 sheep were bred for 3 months (Group A), while the other 3 were bred for 6 months (Group B). After the animals being killed, the femoral condyles with EPS were obtained, which were three-dimensionally-imaged and reconstructed by micro-CT. Histological evalu-ation was made thereafter.
Results: The trabecular microstructure was denser at the screw-bone interface than in the distant parts in expan-sive section, especially within the spiral marking. In the non- expansive section, however, there was no significant differ-ence between the interface and the distant parts. The regions of interest (ROI) adjacent to EPS were reconstructed and analyzed by micro-CT with the same thresholds. The three-dimensional (3-D) parameters, including tissue min- eral density (TMD), bone volume fraction (BVF, BV/TV), bone surface/bone volume (BS/BV) ratio, trabecular thickness (Tb.Th), and trabecular separation (Tb.Sp), were sig- nificantly better in expansive sections than non-expan-sive sections (P 〈 0.05). Histologically, newly-formed bony trabeculae crawled along the expansive fissures and into the center of EPS. The newly-formed bones, as well as the bones at the bone-screw interface, closely contacted with the EPS and constructed four compartments. Conclusions: The findings of the current study, based on micro-CT and histological evaluation, suggest that EPS can significantly provide stabilization in osteoporotic cancellous bones. 相似文献
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记忆合金弓齿钉内固定治疗第5跖骨基底部骨折 总被引:1,自引:0,他引:1
目的探讨记忆合金弓齿钉内固定治疗第5跖骨基底部骨折的临床疗效。方法本组25例,其中男18例,女7例,平均39岁。受伤原因:跌倒时扭伤19例,重物砸伤6例。22例为闭合性骨折,3例为开放性骨折,其中1例合并同侧距骨骨折。第5跖骨基底部Ⅰ区骨折14例,Ⅱ区骨折1-例,Ⅲ区骨折1例。结果本组病例获8—28个月(平均18个月)随访。全部病例获得骨性愈合,平均愈合时间7.5周(6—10周)。未发生深部感染、骨不连、足部畸形等并发症。本组病例术后8个月~1年半左右再次手术将内固定顺利取出。按Maryland足部评分系统评分,优20例,良5例,优良率100%。结论记忆合金弓齿钉治疗第5跖骨基底部骨折固定可靠,可使患者早期下床活动,获得满意的疗效,是一种较理想的内固定方式。 相似文献
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三种髓内钉治疗股骨转子间骨折的临床研究 总被引:1,自引:0,他引:1
目的 观察Gamma钉、股骨近端髓内钉(PFN)和防旋股骨近端髓内钉(PFNA)三种髓内钉治疗股骨转子间骨折的疗效. 方法回顾性分析2004年1月至2007年6月手术治疗的126例股骨转子间骨折患者的临床资料,其中Gamma钉治疗46例,PFN治疗29例,PFNA治疗51例.比较三组患者的手术时间、术中失血量、并发症发生情况、骨折愈合情况及术后髋关节Harris评分.结果 126例患者中共有91例获得到随访,时间11~39个月(平均21.6个月),三组患者在并发症发生情况、骨折愈合时间、关节功能评分上差异均无统计学意义(P>0.05),但PFNA组的手术时间、术中出血量少于其他两组(P<0.05),而PFN组与Gamma钉组之间差异无统计学意义(P>0.05). 结论Gamma钉、PFN和PFNA三种髓内钉均适合用于治疗股骨转子间骨折,其中PFNA操作相对简单,可缩短手术时间,减少术中出血. 相似文献
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新型钉道固化方法增强椎弓根螺钉固定强度的体外实验研究 总被引:1,自引:0,他引:1
目的评价新型钉道固化方法提高椎弓根螺钉稳定性的效果,并观察钉道界面情况。方法42个新鲜成年山羊腰椎随机分为三组,分别给予3种不同的钉道处理。24h后各组随机选取4个椎体进行Micro-CT重建,对其余30个椎体进行轴向拔出实验。结果Micro-CT三维重建显示:实验组中呈现一种特殊的部分"螺钉-骨质"和部分"螺钉-CSC-骨质"共存的整体界面。生物力学实验表明:新型钉道固化方法可以显著提高椎弓根螺钉的最大轴向拔出力。结论做为一种新型的钉道固化方法,钉道局部固化不仅可以显著提高椎弓根螺钉固定的稳定性,而且形成了一种特殊的部分"螺钉-骨质"和部分"螺钉-CSC-骨质"共存的整体界面,为减少螺钉取出时对周围骨质的破坏提供了一个良好的前提条件。 相似文献
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目的:评价采用常规器械扩窗经椎板间隙入路内窥镜下手术治疗伴椎板间隙狭窄的L5/S1椎间盘突出症的可行性.方法:2011年9月~2012年6月应用常规器械扩窗经椎板间隙入路内窥镜下椎间盘切除术治疗伴椎板间隙狭窄的L5/S1腰椎间盘突出症患者45例,其中男29例,女16例;年龄16~53岁,平均35.7岁.突出类型:肩上型25例,腋下型10例,混合型5例,游离型5例.统计手术时间、术中 出 血量、扩窗咬除骨量及并发症等手术基本情况.术前及术后3d、2周、1个月、3个月、6个月进行腰腿痛视觉模拟评分(VAS).结果:所有病例均顺利完成手术和各时间点VAS评分.手术时间60~125min,平均83.5min;术中出血约10~50ml,平均25ml术中扩窗咬除骨量约3~1g,平均6g.术中无神经根损伤、硬膜囊撕裂.术后3例出现下肢麻木感,1周后均恢复,术后无出血、感染等其他并发症.术后各时间点腰腿痛VAS与术前比较有显著性差异(P<0.05).结论:采用经椎板间隙入路内窥镜下椎间盘切除术治疗伴椎板间隙狭窄的L5/S1椎间盘突出症时,常规器械扩窗具有较大的安全性,操作步骤简单,不需要复杂昂贵的专门设备. 相似文献
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记忆合金弓齿钉内固定治疗第5跖骨基底部骨折 总被引:1,自引:0,他引:1
目的探讨记忆合金弓齿钉内固定治疗第5跖骨基底部骨折的临床疗效。方法本组25例,其中男18例,女7例,平均39岁。受伤原因:跌倒时扭伤19例,重物砸伤6例。22例为闭合性骨折,3例为开放性骨折,其中1例合并同侧距骨骨折。第5跖骨基底部Ⅰ区骨折14例,Ⅱ区骨折10例,Ⅲ区骨折1例。结果本组病例获8~28个月(平均18个月)随访。全部病例获得骨性愈合,平均愈合时间7.5周(6~10周)。未发生深部感染、骨不连、足部畸形等并发症。本组病例术后8个月~1年半左右再次手术将内固定顺利取出。按Mary-land足部评分系统评分,优20例,良5例,优良率100%。结论记忆合金弓齿钉治疗第5跖骨基底部骨折固定可靠,可使患者早期下床活动,获得满意的疗效,是一种较理想的内固定方式。 相似文献
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目的探讨应用锁定加压钢板治疗GustiloⅠ、Ⅱ型尺桡骨开放性骨折的临床疗效。方法本组11例,男8例,女3例,年龄31~58岁,平均39岁。受伤原因:车祸伤7例,摔伤2例,重物砸伤2例。开放伤按Gustilo分型,Ⅰ型3例、Ⅱ型8例。均采用锁定加压钢板进行内固定治疗。结果本组病例获9~23个月,平均15个月随访。全部病例获得骨性愈合,愈合时间2.5~3.5个月,平均3个月。未发生深部感染、骨不连等并发症。结论对GustiloⅠ、Ⅱ型开放性尺桡骨骨折进行急诊彻底清创、AO锁定加压钢板内固定、一期闭合伤口,早期应用抗感染治疗,可以获得满意的疗效。 相似文献