前路减压植骨及VentroFix系统固定治疗陈旧性胸腰椎骨折

对7例陈旧性胸腰椎爆裂性骨折合并不同程度截瘫的病例，采取前路椎管减压、椎体问植骨并行VentroFix系统固定，术后后凸畸形和椎体压缩均有明显改善，植骨均获愈合。     

关节镜辅助下钢板内固定治疗关节内跟骨骨折

[目的]探讨分析关节镜辅助下钢板内固定治疗关节内跟骨骨折的方法和疗效;[方法]对78位患者，86例累及关节面的跟骨骨折在关节镜辅助下行切开复位钢板内固定术，术后平均随访18个月（12～30个月），通过比较术前术后X线片和踝足功能的AOFAS评分对治疗效果作分析评价．[结果]86例关节内跟骨骨折术后X线示复位满意．与术前存在显著性差异（P〈0．01），AOFAS评分优良率91．86％．[结论]对于关节内跟骨骨折，采用关节镜辅助钢板内固定更加接近解剖复位，足部功能恢复满意且并发症少     

关节镜下可吸收螺钉固定腘绳肌重建膝后交叉韧带的疗效评价

目的 探讨关节镜下可吸收螺钉固定腘绳肌腱单束重建膝后交叉韧带(posterior cruciate ligament,PCL)的效果.方法 2004年4月～2005年4月,我院25例(25膝)经关节镜检查证实为PCL断裂,在关节镜下行自体腘绳肌腱单束PCL 重建术,生物可吸收挤压螺钉解剖位固定重建韧带. 结果 手术时间平均90min(80～100min).25例膝术毕PCL重建后后抽屉试验均为阴性.术后住院时间7～14 d,平均10.4 d.25例术后随访12～24个月,平均18个月,23例膝后抽屉试验阴性,2例后抽屉试验1级.术后12个月Lysholm膝关节功能评分由术前(44.8±8.1)分提高至(77.8±6.4)分(t=-15.999,P=0.000).按国际膝关节文件编制委员会膝关节标准评价膝关节功能分级,术前异常(C级)10例、显著异常(D级)15例,随访时正常(A级)8例、接近正常(B级)15例、异常(C级)2例(Z=-4.394,P=0.000). 结论 关节镜下可吸收螺钉固定自体腘绳肌腱单束重建膝PCL创伤小,固定可靠,手术操作简单,术后膝关节功能恢复效果好.     

Effects of basic fibroblast growth factor on biological characteristics of osteoblasts

Objective: To elucidate the effects of exogenous basic fibroblast growth factor ( bFGF ) on biological characteristics of rat osteoblasts cultured in vitro. Methods: The osteoblasts isolated from a Sprague-Dawley rat and cultured in vitro were treated with different concentrations of bFGF ( 5-50 ng/ml) respectively. At 24 hours after treatment, the proliferating cell nuclear antigen was measured with immunocytochemistry, alkaline phosphatase (ALP) activity was determined and the expression of transforming growth factor beta 1 ( TGF-β1 )was detected to observe the effects of bFGF on growth and differentiation of osteoblasts. Resu/ts: bFGF ( 5-50 ng/ml ) could obviously promote the growth of osteoblasts. The intracellular expression of TGF-β1 mRNA increased significantly, but the intracellular ALP content decreased. Conclusions: bFGF can obviously stimulate the proliferation of osteoblasts and promote the synthesis of TGF-β1, but cannot promote the differentiation of osteoblasts.     

Molecular Tissue Engineering: Applications for Modulation of Mesenchymal Stem Cells Proliferation by Transforming Growth Factor β_1 Gene Transfer 

It is well established that damaged articularcartilage has only a limited ability to healitself. Tissueengineering represents a new alternative approach tocartilage repairing. However,as it is very difficult toacquire seed cells with good activity,especially thoseinflammatory factors which induce the degradation ofarticular cartilage in the pathology of trauma orosteoarthritis were still exited,the success of all ofthese techniques has been variable and limited in thatnone were able to restore…     

Up-regulation of Niacinamide in Intervertebral Disc Aggrecan in vitro

The regulatory effects of niacinamide （Nia） on intervertebral disc （IVD） aggrecan in vitro was investigated. Chiba＇s 10 ng/mL interleukin-1 （IL-1）-induced rabbit IVD degeneration model in vitro was established. 0.5, 0. 25 and 0.05 mg/mL Nia was added to normal and degenerated IVDs for intervention. On the first and second week after intervention, safranin O-fast green staining intensity and glycosaminoglycan （GS） content were measured. The expression of aggrecan core protein was detected by RT-PCR. The results showed： （1） After treatment with 0. 5 mg/mL Nia for one week, the GS content in nucleus pulposus （NP） was increased by 44.80% as compared with control group （P〈0. 01） ; The GS content in IL-1 induction groups was increased with the increase of Nia concentrations： After treatment with 0. 5 mg/mL for one week, the GS content in NP was increased by 68.30% as compared with control group （P〈0. 01）. After two weeks, GS content in NP and fibrous rings was still higher than in control group at the same period （P〈0. 01） and untreated group （P〈0.01）. （2） Safranin O-fast green staining revealed that with the increase of Nia concentrations, staining density in NP and fibrous rings was increased and histological structure damage to IVDs by IL-1β was alleviated. （3） RT-PCR showed that the expression of core protein gene in IL-1β-induced degenerated IVDS was increased with the increase of Nia concentrations. It was concluded that under conditions in vitro, Nia could up-regulate the expression of aggrecan in IVDs and protect IVDs from IL-1β-induced degeneration at least partially, which offers a potential choice for IVD degeneration clinical therapy.     

富含血小板血浆与玻璃酸钠治疗早期踝关节骨性关节炎疗效对比

目的:对比富含血小板血浆(PRP)与玻璃酸钠在早期踝关节骨性关节炎中的应用效果,为临床提供参考。方法:60例早期踝关节骨性关节炎患者随机分成两组,各30例。A组给予玻璃酸钠注射剂关节腔注射,B组给予自体PRP关节腔注射。对比两组患者治疗1个月、2个月、3个月、6个月后疼痛视觉模拟评分(VAS)、踝关节Baird-Jackson评分、10m步行时间等指标变化,以及两组药品不良反应发生情况。结果:治疗1个月后开始,两组各项指标均较治疗前明显改善(P<0.05)。治疗1个月后,A组踝关节Baird-Jackson评分、VAS评分、10 m步行步数优于B组(P<0.05)。治疗3个月后,B组踝关节Baird-Jackson评分、VAS评分、10 m步行步数优于A组(P<0.05)。两组药品不良反应发生率无显著差异(P>0.05)。结论:关节腔内注射玻璃酸钠和PRP治疗早期踝关节骨性关节炎均有较好疗效,注射PRP在3~6个月时疗效优于注射玻璃酸钠。     

关节镜辅助复位内固定与切开复位内固定治疗胫骨平台骨折的疗效比较

目的:比较关节镜辅助复位内固定（ARIF）和切开复位内固定（ORIF）治疗胫骨平台骨折的疗效。方法:回顾性分析2016年1月至2018年8月华中科技大学附属协和医院骨科收治的75例胫骨平台骨折患者的资料。男58例,女17例;年龄20~54岁,平均47岁。左侧42例,右侧33例。骨折根据Schatzker分型：Ⅰ型23例...     

关节镜下盘状半月板成形术的临床观察

目的对65例关节镜下盘状半月板成形术的临床效果进行总结，分析影响手术效果的可能因素．探讨盘状半月板关节镜下手术的指征和方法。方法选择1996年9月～2003年9月65例盘状半月板患者．其中男性29例，女性36例，年龄8～46岁，平均年龄21、3岁。65例中合并半月板破裂者50例，包括分层撕裂23例，桶柄状撕裂16例，瓣状撕裂11例。手术方法：应用美国Stryker及德国蛇牌关节镜系统．用300镜观察，交替使用内侧和外侧切口置人不同角度篮钳和镜下电灼对半月板进行处理，保留半月板边缘6～8mm。结果65例患者术后均得到随访．随访时间6个月至24个月，平均14、3个月。手术后关节交锁症状全部消失。术后6个月根据Ikeuchi膝关节评分标准，优48例，良12例．一般5例。无术后功能差的病例。结论盘状半月板成形术可以最大程度地保留半月板的功能．延缓膝关节的退变，除Wisberg韧带型盘状半月板或合并严重撕裂者，应尽量采用此手术方法。应严格掌握该术式、适应证、禁忌证，避免影响手术效果的因素．     

关节镜下髌骨支持带外侧松解内侧紧缩术治疗髌骨半脱位

目的探讨关节镜下行髌骨支持带外侧松解内侧紧缩术治疗髌骨半脱位的临床疗效。方法手术治疗44例髌骨半脱位患者,在关节镜下采用低温等离子电刀松解髌骨外侧支持带,同时采用PDS线沿髌骨内侧缘上极、中点、下极缝合加强内侧支持带,使术中膝关节屈曲过程中髌骨处于正常轨道。根据Lysholm膝关节功能评分及IKDC 2000主观评分进行术前、术后膝关节功能评估。结果 44例均获得随访,时间3~30个月。术后X线片显示髌骨位置良好。末次随访患肢膝关节活动度恢复良好,无关节僵硬、功能障碍等表现,未见复发半脱位。Lysholm评分由术前44~71(52.2±6.3)分提高到术后80~94(88.1±3.9)分(P0.001),IKDC 2000主观评分由术前42~69(52.7±6.1)分提高到术后82~97(89.7±3.1)分(P0.001)。结论关节镜下髌骨支持带外侧松解内侧紧缩术治疗髌骨半脱位,可维持髌骨活动稳定,效果良好。