west china medical publishers
Author
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Author "宋跃明" 114 results
  • CURRENT DEVELOPMENT OF CORRECTION OF SEVERE AND RIGID SCOLIOSIS

    【Abstract】 Objective To summarize the current development of the correction of severe and rigid scol iosis. Methods Recent l iterature concerning the correction of severe and rigid scol iosis at home and abroad was extensively reviewed, and current developments of the correction of severe and rigid scol iosis were summarized. Results The correction of severe and rigid scol iosis shows developments as follows: the application of Halo-gravity traction increase and Halo-femoral traction is applied in posterior correction surgery. Fixation and correction technique with all pedicle screws was gradually popularized. The applications of posterior vertebral column resection, one-stage anterior and posterior surgery, and posterior-only correction surgery increase. Conclusion The developments of all kinds of correction techniques improve the correction effects of severe and rigid scol iosis. Now there is no standardized treatment protocol for severe and rigid scol iosis. Greater development can be expected in the future.

    Release date:2016-08-31 04:22 Export PDF Favorites Scan
  • RESEARCH ADVANCEMENT OF THREE-DIMENSIONAL CORRECTION TECHNIQUES OF IDIOPATHIC SCOLIOSIS

    Objective To elucidate the new development and effects of three-dimensional correction techniques of idiopathic scol iosis (IS). Methods The related home and abroad l iterature concerning three-dimensional correction techniques of IS was extensively reviewed. Results With more and more attention to three-dimensional correction of IS, all kinds of surgery and developed techniques of correction are applied to the correction of IS. The effects of three-dimensional correction of IS are satisfied. Conclusion With more knowledge about IS and more developed theory of correction, more safe and effective techniques of correction is therefore the hot spot for future study.

    Release date:2016-08-31 04:23 Export PDF Favorites Scan
  • THE FINITE ELEMENT ANALYSIS OF LUMBAR FUSIONS

    Objective To investigate the stability and the stress distributions of L3-5 fused with three different approaches (interbody, posterolateral and circumferential fusions) and to investigate degeneration of thesegment adjacent to the fused functional spinal unit. Methods A detailed L3-5 three-dimensional nonlinear finite element model of a normal man aged 32 was established and validated. Based on the model, the destabilized model, the interbody, posterolateral and circumferential fusions models of L4-5 were established. After the loadings were placed on all the models, we recorded the angular motions of the fused segment and the Von Mises stress of the adjacent intervertebral disc. Results The circumferential fusion was most stable than the others, and the interbody fusion was more stable than the posterolateral fusion. The maximal Von Mises stress of the adjacent L3,4 intervertebral disc in all the models was ranked descendingly as flexion,lateral bending,torsion and extension. For the three kinds of fusions, the stress increment of the L3,4 intervertebral disc was ranked ascendingly as interbody fusion,posterolateral fusion and circumferential fusion. Conclusion After destabilization of the L4,5 segment, the stability of the circumferential fusionis better than that of the others, particularly under the flexional or extensional loading. The stability of the interbody fusion is better than that of the posterolateral fusion, except for under the flexional loading. The feasibility of adjacent segment degeneration can be ranked descendingly as: circumferential fusion,posterolateral fusion and interbody fusion.

    Release date:2016-09-01 09:25 Export PDF Favorites Scan
  • FUSION OF RECONSTRUCTED TITANIC PLATE, VERTEBRAL PEDICAL SCREWS AND AUTOGENOUS GRANULATED CANCELLOUS BONE GRAFT IN POSTERIOR OCCIPITOCERVICAL REGION

    Objective To explore the techenique of fusing the reconstructed titanic plate, the C2 pedical screws, and the autogenous granulated cancellous bone graft in the occipitocervical region. Methods From April 2002 to January 2005, 19 patients aged 31-67 years with occipitocervical instability underwent the occipitocervical fusion using the reconstructed plate, C2 pedical screws, and autogenous granulated cancellous bone graft. Of the patients, 8 had complex occipitocervical deformity,8 had old atlantoaxial fracture and dislocation,2 had rheumatoid arthritis and anterior dislocation of the atlantoaxial joint, and 1 had cancer of the dentoid process of the axis. Results No complication occurred during and after operation.The follow-up for an average of 16 months in 19 patients showed that all the patients achieved solid bony fusion in the occipitocervical region.There was no broken plate, broken screw, looseness of the internal fixation or neurovascular injury. Conclusion The fixation of the C2 pedical screws with the reconstructed titanic plate is reliable, the insertion is easy, and the autogenous granulated cancellous bone graft has a high fusion rate, thus resulting in a satisfactory effect in the occipitocervical fusion.

    Release date:2016-09-01 09:26 Export PDF Favorites Scan
  • FUNCTION OF FIBULA IN STABILITY OF ANKLE JOINT

    Objective To summarize the function of fibula in stability of ankle joints.Methods Recent original articles were extensively reviewed, which were related to the physiological function and biomechanical properties of fibula, the influence of fibular fracture on stability of ankle joints and mechanism of osteoarthritis of ankle joints. Results The fibula had the function of weightbearing; and it was generally agreed that discontinued fibula could lead to intra articular disorder of ankle joint in children; but there were various viewpoints regarding the influence of fibular fracture on the ankle joint in adults. Conclusion Fibula may play an important role in stability of ankle joint. 

    Release date: Export PDF Favorites Scan
  • 颅底凹陷症外科治疗的手术入路研究进展

    【摘要】 颅底凹陷症(basilar invagination,BI)是颅颈交界区(craniovertebral junction,CVJ) 常见的先天性畸形。其外科治疗已有近一个世纪的历史,为达到有效的减压及坚强的内固定,多种手术入路陆续得到开展。如何正确选择手术入路对其治疗的安全性及疗效具有重要的意义。本文根据国内外近期文献综述了应用于颅底凹陷症患者不用手术入路的研究进展,总结颅底凹陷症外科治疗的不同手术入路特点及适应证,以期对临床工作起到一定的指导作用。

    Release date:2016-09-08 09:24 Export PDF Favorites Scan
  • Lenke 1型青少年特发性脊柱侧凸选择性融合的研究进展

    Lenke 1型青少年脊柱侧凸是脊柱侧凸最常见的类型。随着三维矫形的进步,特别是椎弓根螺钉的广泛应用,Lenke 1型青少年特发性脊柱侧凸选择性融合的适应标准和末端融合椎的选择策略有了更新的认识,但目前尚无标准化的治疗方案。现就以上内容作一综述。

    Release date: Export PDF Favorites Scan
  • 颈椎减压术后颈5神经根麻痹影响因素研究进展

    颈椎减压术后颈5神经根麻痹是颈椎减压术后显著的并发症,也是影响患者对手术满意度的顽疾之一。近年来,针对术后颈5神经根麻痹的发病机制及其影响因素有很多研究,提出了4种可能的发病机制假说:术中神经根损伤,脊髓节段性病理改变,减压术后脊髓移位合并椎间孔狭窄所导致神经根栓系现象,脊髓缺血再灌注损伤。但目前尚无一种假说能够完全合理解释术后颈5神经根麻痹的发生。基于以上假说,关于术中脊髓监测和预防性颈5神经根椎间孔减压是否能预防术后颈5神经根麻痹的研究也倍受关注。现回顾近年来相关的文献,从发生率、发生机制、预防、治疗及预后等方面的研究进展进行综述。

    Release date: Export PDF Favorites Scan
  • 干细胞移植治疗脊髓损伤的研究现状

    脊髓损伤是目前脊柱外科临床上一种常见的疾病,至今仍是一个治疗难题。目前临床上的治疗手段如药物治疗、手术治疗等的治疗效果均极为有限,大部分患者经常规治疗后并未获得神经功能的实质性进展。干细胞移植后在局部能分化为目标细胞如神经元来发挥相应的功能,是目前脊髓损伤治疗的研究热点,尽管一直尚处于实验研究阶段,但仍然取得了较大的进展,为临床治疗脊髓损伤提供了较为可靠的实验依据。现根据国内外发表的相关文献综述干细胞移植治疗脊髓损伤,以期对干细胞移植的实验研究及临床治疗起到一定的参考作用。

    Release date: Export PDF Favorites Scan
  • 生物材料预防椎板切除术后硬膜外瘢痕粘连的研究进展

    椎板切除术后硬膜外瘢痕粘连是脊柱外科常见并发症,研究认为硬膜外瘢痕粘连与腰椎手术失败综合征密切相关。根据不同文献报道,5%~60% 的腰椎手术失败综合征是硬膜外瘢痕粘连引起的。硬膜外瘢痕粘连会大大增加再次手术的风险,治疗效果也不理想。所以,找寻一种更加安全合理的预防方法一直是脊柱外科研究的重点。自体组织、天然高分子等作为物理屏障阻隔硬模外瘢痕的方法已使用了几十年,取得了一定疗效。近年来随着对硬膜外瘢痕粘连机制的认识以及材料学的发展,新的方法层出不穷。自体组织、天然高分子及人工合成高分子等生物材料在动物实验甚至临床上取得了一定进展。该文对近年国内外有关生物材料在预防硬膜外瘢痕粘连的研究进展进行了综述。

    Release date:2017-01-18 08:50 Export PDF Favorites Scan
12 pages Previous 1 2 3 ... 12 Next

Format

Content