踝部骨折60例手术治疗

目的 :总结 6 0例踝部骨折治疗效果。方法 :松质骨加压螺钉 ,配合必要的特型钢板内固定。结果 :41例得到随访 ,时间 6～ 2 8个月 ,优良率 91%。结论 :踝部骨折应尽早手术 ,解剖复位 ,坚强内固定和早期功能锻炼     

改良二维影像导航引导椎体后凸成形术治疗多发性椎体压缩性骨折临床分析

目的 探讨改良二维影像导航方法引导椎体后凸成形术治疗多发性椎体压缩性骨折的临床疗效.方法 28例(73个椎体)多发性骨质疏松椎体压缩性骨折患者,获取手术椎节的正侧位及斜位X线影像,通过影像导航模拟手术椎体的正侧位及椎弓根轴位虚拟影像,引导经皮椎弓根穿刺行椎体后凸成形术.结果 本组28例患者均为单侧穿刺,通过影像导航引导椎弓根穿刺均获成功.术中进行导航虚拟影像与实际穿刺针影像进行匹配,两者影像基本吻合.聚甲基丙烯酸甲酯骨水泥的注射量为2.5～4.0 ml,术后CT复查显示聚甲基丙烯酸甲酯骨水泥填充良好.术后疗效完全缓解11例,部分缓解17例.结论 改良二维影像导航通过术中获取病椎的正侧位及左右的斜位片,模拟手术椎体的三维影像(正侧位及椎弓根轴位的虚拟影像),更加精确地引导椎体后凸成形术治疗多发性椎体压缩性骨折,减少了手术时间和术中辐射暴露时间,使手术更安全、更准确、更微创.     

影像导航引导椎体成形术治疗多发性椎体转移瘤的临床分析

目的探讨影像导航引导椎体成形术在多发性椎体转移瘤中的临床应用。方法获取23例多发性椎体转移瘤患者，手术椎节的正侧位及斜位片，采用影像导航的方法虚拟成椎体的正侧位及椎弓根轴位片，引导经皮椎弓根穿刺行椎体成形术。结果本组23例患者均为单侧穿刺，导航引导椎体成形术均获成功，术中进行导航虚拟影像与实际穿刺针影像进行匹配，两者影像基本吻合。PMMA的注射量为2～5ml，术后CT复查显示PMMA填充病灶良好。术后完全缓解8例，部分缓解15例。结论影像导航通过术中获取病椎的正侧位及左右的斜位片，模拟手术椎体的正侧位及椎弓根轴位的虚拟影像，可以更加精确地引导椎体成形术治疗多发性椎体转移瘤，减少了手术时间和术中放射线的照射，使手术更安全、更准确、更微创。     

空心拉力螺钉治疗股骨颈骨折

对于中、青年的股骨颈骨折 ,过去多采用牵引或 3根骨圆针、单一空心加压螺钉、3枚实心螺丝钉等内固定治疗方法 ,但是疗效都不尽人意 ,这是因为股骨头的血液供应在股骨颈骨折后损伤很大 ,容易造成骨不连及骨头坏死。而采用空心拉力螺钉内固定治疗股骨颈骨折具有切口小、损伤少、内固定可靠、患者可早期进行功能锻炼等优点 ,从而降低股骨头坏死的发生率 ,而得到广泛应用。我院在 1996年 4月至 2 0 0 0年 10月采用空心拉力螺钉内固定治疗股骨颈骨折 2 7例 ,取得满意的疗效。报道如下。1　临床资料1 1　一般资料　本组 2 7例 ,男 2 2例 ,女5例 ;…     

改良二维影像导航引导椎体后凸成形术治疗多发性椎体压缩性骨折临床分析

Objective To explore clinlical outcomes of using improved computer-assisted fluoroscopic navi-gation to guide the percutaneous vertebroplasty to treat multiple osteoporotic spinal compression fractures. Methods Twenty-eight multiple osteoporotic spinal compression fractures patients with 73 painful vertebral body were got an-terio posterior,lateral and oblique radiographic imaging by using computer-assisted fluoroscopic navigation to imitate anterior- posterior. Lateral spinal and axial pedicle virtual image was obtained to guide the percutaneous kyphoplas-ty. Results All painful vertebral body were one-sided punctured,all percutaneous kyphoplasties were succeed by guiding with computer-assisted fluoroscopic navigation. Navigation virtual puncture needle image basically matched with reality view. PMMA dosage was 2.5 ～ 4 ml. Postioporational CT showed that the PMMA filled spinal focus very well. 11 cases completely relieved and 17 cases partially relieved. Conclusion Using improved computer-assisted fluoroscopic navigation to guide the PKP to treatment multiple osteoporotic spinal compression fractures decreases op-erative time and radiation injury. It is a safe,precise,minimally invasive method.     

改良二维影像导航引导椎体后凸成形术治疗多发性椎体压缩性骨折临床分析

Objective To explore clinlical outcomes of using improved computer-assisted fluoroscopic navi-gation to guide the percutaneous vertebroplasty to treat multiple osteoporotic spinal compression fractures. Methods Twenty-eight multiple osteoporotic spinal compression fractures patients with 73 painful vertebral body were got an-terio posterior,lateral and oblique radiographic imaging by using computer-assisted fluoroscopic navigation to imitate anterior- posterior. Lateral spinal and axial pedicle virtual image was obtained to guide the percutaneous kyphoplas-ty. Results All painful vertebral body were one-sided punctured,all percutaneous kyphoplasties were succeed by guiding with computer-assisted fluoroscopic navigation. Navigation virtual puncture needle image basically matched with reality view. PMMA dosage was 2.5 ～ 4 ml. Postioporational CT showed that the PMMA filled spinal focus very well. 11 cases completely relieved and 17 cases partially relieved. Conclusion Using improved computer-assisted fluoroscopic navigation to guide the PKP to treatment multiple osteoporotic spinal compression fractures decreases op-erative time and radiation injury. It is a safe,precise,minimally invasive method.     

改良二维影像导航引导椎体后凸成形术治疗多发性椎体压缩性骨折临床分析

Objective To explore clinlical outcomes of using improved computer-assisted fluoroscopic navi-gation to guide the percutaneous vertebroplasty to treat multiple osteoporotic spinal compression fractures. Methods Twenty-eight multiple osteoporotic spinal compression fractures patients with 73 painful vertebral body were got an-terio posterior,lateral and oblique radiographic imaging by using computer-assisted fluoroscopic navigation to imitate anterior- posterior. Lateral spinal and axial pedicle virtual image was obtained to guide the percutaneous kyphoplas-ty. Results All painful vertebral body were one-sided punctured,all percutaneous kyphoplasties were succeed by guiding with computer-assisted fluoroscopic navigation. Navigation virtual puncture needle image basically matched with reality view. PMMA dosage was 2.5 ～ 4 ml. Postioporational CT showed that the PMMA filled spinal focus very well. 11 cases completely relieved and 17 cases partially relieved. Conclusion Using improved computer-assisted fluoroscopic navigation to guide the PKP to treatment multiple osteoporotic spinal compression fractures decreases op-erative time and radiation injury. It is a safe,precise,minimally invasive method.     

影像导航引导椎体成形术在治疗胸腰段椎体爆裂骨折中的应用

目的 探讨影像导航系统引导椎体成形术辅助短节段椎弓钉内固定在治疗胸腰段椎体爆裂骨折中的有效性和效果.方法 对28例胸腰段椎体爆裂骨折采用导航引导下的短节段椎弓钉固定结合钙磷骨水泥灌注椎体成形术,内植完成后即行X线片正侧位摄片与导航路径进行吻合测量.结果 本组患者术后内植物位置理想,椎弓钉位置评级:理想106枚(94.5%),6枚突破椎弓根外侧皮质(5%),Ⅱ级2枚.术后1周离床负重行走.椎体高度丢失恢复40%,随访12个月后显示椎体高度平均改变0.2%,过伸过屈动力摄片显示固定段无异常活动,未发现有椎弓钉松动、断裂病例.结论 导航引导椎弓钉植入及钙磷骨水泥灌注椎体成形术,只需1次X线片成像就能做出虚拟的手术环境和路径;使内植物精确植入最佳位置,提高了椎弓钉植入及椎体成形手术的安全性,提高手术疗效.     

类风湿关节炎中巨噬细胞移动抑制因子对内皮细胞功能及血管内皮生长因子的影响

目的探讨巨噬细胞移动抑制因子（MIF）对类风湿关节炎（RA）滑膜内皮血管生成的影响和作用机制。方法免疫组化检查MIF在RA滑膜组织中的表达;加入MIF或PBS溶液培养人微血管内皮细胞株（HMEC-1）,CCK8法观察细胞的生长差异,磷脂酰丝氨酸凋亡试剂盒（AnnexinV法）检测细胞凋亡,RT—QPCR检测细胞中MIF及VEGF的表达差异。结果MIF在5例RA组织中均阳性表达;加入MIF的细胞株增殖显著较加PBS溶液的快（F=216．93,P〈0．01）,细胞株的凋亡被MIF显著抑制（凋亡率从21．37％降为7．01％（t=13．88,P〈0．01）;处于分裂相的细胞数目较加入PBS的细胞株多（G2期＋S期细胞比例从37．89％升为54．05％,t=5．42,P〈0．01）,在加入MIF的细胞株中VEGF的表达4．62倍高于加入PBS的细胞株（t=7．34,P〈0．01）。结论MIF在RA滑膜组织中表达,并通过提高血管内皮细胞的VEGF而促进RA滑膜血管生成而发挥重要的生理作用。MIF或许是治疗RA进展的药物靶点,有望通过抑制RA患者中MIF的表达从而延缓疾病的进展,改善患者的生活质量。     

单侧椎体后凸成形术治疗骨质疏松压缩骨折临床研究

目的 探讨单侧经皮球囊后凸成形术(PKP)治疗骨质疏松性椎体压缩骨折的临床疗效.方法 在X线监测下对31例患者(58个椎体)行单侧经皮球囊后凸成形术.采用VAS评分、Oswestry功能障碍评价指数及测量椎体高度丢失率及恢复率对患者手术效果进行比较.结果 患者术后疼痛均缓解,患者随访6～18个月,术后VAS评分与Oswestry功能障碍指数较术前比较差异有统计学意义.结论 单侧经皮椎体后凸成形术治疗老年骨质疏松脊柱压缩骨折疗效显著,能提高手术安全、缩短手术时间、降低射线暴露量和手术费用.