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微创经皮钢板内固定治疗胫骨骨折 总被引:5,自引:4,他引:1
2005年3月~2008年3月,我科采用微创经皮钢板内固定治疗胫骨骨折34例,疗效满意。1材料与方法1.1病例资料本组34例,男20例,女14例,年龄12~68岁。致伤原因:交通事故24例,坠落伤4例,砸伤6例,均为闭合性损伤。合并多发骨折8例,颅脑、胸腹损伤6例。其中胫骨近端损伤7例,胫骨干损伤17例,胫骨远端损伤10例,合并腓骨骨折28例,合并下胫腓联合分离3例。 相似文献
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一般性骨折愈合过程分为血肿机化演进期、原始骨痂形成期和骨痂改造塑形期;而骨质疏松性骨折愈合过程分为纤维骨痂期、软骨骨痂期和骨性骨痂期。骨质疏松性骨折愈合的组织学观察表明,纤维骨痂期主要是成纤维细胞合成Ⅲ型胶原;软骨骨痂期主要是成软骨细胞合成、分泌Ⅱ型胶原;骨性骨痂期主要是随着软骨内成骨的出现和发展,Ⅱ型胶原消失,逐渐由抗张力性能较强的Ⅰ型胶原所取代。一般来说,实验性骨质疏松性骨折的愈合方式与一般性骨折愈合方式相似,软骨内成骨和膜内成骨共同参与了骨质疏松性骨折的修复过程,但以软骨内成骨为主。 相似文献
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脊柱侧凸矫形手术早期并发症的处理及预防 总被引:2,自引:2,他引:0
随着脊柱外科的迅速发展,国内越来越多的医院已经或正在开展各类脊柱侧凸的手术治疗。但由于脊柱作为人体的支柱,其解剖关系复杂,邻近有许多重要组织和器官,因此手术相关并发症并不少见,也不容忽视。如何预防和减少手术并发症,已经是迫在眉睫的任务,需要我们不断研究和深入探讨。根据发生时间可将手术并发症分为术中、术后早期及术后晚期并发症。现对脊柱侧凸矫形手术中及术后早期并发症的的处理及预防进行分析。 相似文献
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Improved sexual behavior in male rats treated with a Chinese herbal extract: hormonal and neuronal implications 总被引:3,自引:0,他引:3
Zanoli P Benelli A Zavatti M Rivasi M Baraldi C Baraldi M 《Asian journal of andrology》2008,10(6):937-945
Aim: To investigate the influence of an extract obtained from five Chinese medicinal plants on sexual behavior of adult male rats. Methods: The extract was administered at doses of 30, 60 and 120 mg/kg by oral gavage, acutely (one time, 45 min before mating test) or subchronically (daily for 10 days) in sexually potent and sexually sluggish/impotent rats. Sexual behavior, serum levels of luteinizing hormone (LH) and testosterone (T) were evaluated in treated rats and compared with controls receiving vehicle. The effect of the extract on central dopaminergic neurotransmission was assessed in the nucleus accumbens using a microdialysis technique. Results: In sexually potent rats, both acute and subchronic treatment with the extract dosed at 30 and 60 mg/kg reduced mount latency and intromission latency. In sluggish/impotent rats, the acutely administered extract at the dose of 60 mg/kg shortened ejaculation latency, whereas subchronically administered at the doses of 30 and 60 mg/kg, reduced mount, intromission and ejaculation latencies, increasing also the percentage of mounting and ejaculating rats. The extract dosed at 60 mg/kg significantly increased LH and T following acute and subchronic administration and increased 3,4-dihydroxyphenylacetic acid levels in the nucleus accumbens, 30 min after the acute administration. Conclusion: The improvement in both appetitive and consummatory components of sexual behavior observed in male rats treated with the extract could be ascribed to increased serum T level in parallel with the activation of the central dopaminergic system. 相似文献
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2005年7月~2008年10月,我科对7例肱骨髁间粉碎性骨折患者进行切开复位+双钢板内固定治疗,取得满意疗效。
1材料与方法
1.1病例资料本组7例,男5例,女2例,年龄31—65岁:根据Riseborough分型:Ⅲ型2例,Ⅳ型5例(图1A)。1例术前有尺神经损伤症状。 相似文献
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Association of XRCC1 gene polymorphisms with idiopathic azoospermia in a Chinese population 总被引:1,自引:0,他引:1
Gu AH Liang J Lu NX Wu B Xia YK Lu CC Song L Wang SL Wang XR 《Asian journal of andrology》2007,9(6):781-786
Aim: To assess the possible role of genetic polymorphisms in DNA repair gene XRCC 1 (X-ray repair cross-comple- menting group l) during spermatogenesis by investigating the associations of one promoter polymorphism (T-77C) and two exonic polymorphisms (Argl94Trp and Arg399Gln) in XRCC1 gene with risk of idiopathic azoospermia in a Chinese population. Methods: The genotype and allele frequencies of three observed polymorphisms were examined by polymerase chain reaction-restriction fragment length polymorphism based on a Chinese population consisting of 171 idiopathic azoospermia subjects and 247 normal-spermatogenesis controls. Results: In our study, all the observed genotype frequencies were in agreement with Hardy-Weinberg equilibrium. The 399A (GA+AA) allele frequency for idiopathic azoospermia subjects and controls was 0.216 and 0.269, respectively. Compared with GG genotype, the AA genotype of Arg399Gln showed a significant association with a decreased risk of idiopathic azoospermia (odds ratio = 0.315; 95% confidence interval = 0.12-0.86). However, no significant differences were found between the cases and controls for T-77C and Arg194Trp polymorphisms. The major haplotypes of XRCC1 gene were TCG, TrG and TCA, whereas no haplotypes appeared to be significantly associated with idiopathic azoospermia based on the cutoff of P 〈 0.05. Conclusion: In a selected Chinese population, AA genotype of Arg399Gln appears to contribute to a decreased risk of idiopathic azoospermia, while we have not any evidence of involvement of XRCC1 T-77C and Arg194Trp polymorphisms in idiopathic azoospermia. (Asian J Androl 2007 Nov; 9: 843-848) 相似文献
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Aim: To investigate the effects of 17β-estradiol (E2), Peganum harmala extract (PHE) and caloric restriction (CR) on various testis parameters during aging. Methods: Twelve-month-old male rats were treated for 6 months with either E2 or PHE, or submitted to CR (40%). Results: Our results show that estrogens and CR are able to protect the male gonad by preventing the decrease of testosterone and E2 levels as well as the decrease of aromatase and estrogen receptor gene expressions. Indeed, E2, PHE and CR treatments induced an increase in the superoxide dismutase activities and decreased the activity of testicular enzymes: gamma-glutamyl transferase, alkaline phosphatase, lactate deshydrogenase as well as the aspartate and lactate transaminases in aged animals. In addition, the testicular catalase and gluthatione peroxidase activities were enhanced in E2, PHE and CR-treated rats compared to untreated animals at 18 months of age. Moreover, the positive effects of estradiol, PHE and CR were further supported by a lower level of lipid peroxidation. Recovery of spermatogenesis was recorded in treated rats. Conclusion: Besides a low caloric diet which is beneficial for spermatogenesis, a protective antioxydant role of estrogens is suggested. Estrogens delay testicular cell damage, which leads to functional senescence and, therefore, estrogens are helpful in protecting the reproductive functions from the adverse effects exerted by reactive oxygen species (ROS) produced in large quanti- ties in the aged testis. 相似文献
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半月板组织工程的研究进展 总被引:1,自引:1,他引:0
半月板损伤临床常见,据美国矫形外科学会2008年的统计资料,美国每年全膝关节置换手术>250000例,其中半月板损伤是骨性关节炎进展的关键因素。然而,半月板仅外周1/3有血液供应,发生于此部位的损伤采用缝合治疗可以愈合;而内侧缘2/3均为无血管区,损伤后自行愈合能力较差,目前临床上针对这类损伤多采用半月板部分切除或全部切除术。 相似文献
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腰椎椎间盘与关节突关节退变是引起腰痛和腰椎不稳的主要原因,在以往对非手术治疗无效的患者通常是采用融合固定术。椎弓根螺钉固定和椎间融合器植骨融合是最常用的技术,融合率可达到90%~100%,但融合固定后所产生的异常应力集中于邻近椎间盘及关节突,将产生邻近未融合节段的运动范围异常增加及相关病理性变化,从而导致继发性椎管狭窄、关节突关节退变、获得性腰椎滑脱、不稳等 相似文献