Lumbus dorsal spine

<正>210127 Posterior short-segment pedicle screw fixation at the injured level for thoracolumbar spine fractures/Zhu Yunrong(朱云荣,Dept Orthop,Changzheng Hosp,2nd Mil Med Univ,Shanghai 200003)…Chin J Trauma.-2010,26(3).-221～224 Objective To discuss indications,operation method and clinical outcome of posterior short-segment pedicle fixation at the injured level for treatment of thoracolumbar spine fractures.Methods A total of 38 patients     

Lumbus dorsal spine

The atypical MR imaging findings and differentiai diagnosis of spontaneous spinal epidural hematoma;Pedicle screw versus hybrid instrumentation in posterior spinal fusion of adolescent idiopathic scoliosis： results and analysis;Reliability and validity of Chinese version of scoliosis research society-22 （SRS-22） patient questionnaire;Imaging study of the wedging changes of vertebral bodies and intervertebral disks in adolescent idiopathic scoliosis;Is obstructed cerebrospinal fluid flow a feature at the craniocervical junction in adolescent idiopathic scoliosis？ phase contrast MR study and comparison with normal controls……     

Lumbus dorsal spine

206559Histopathological changes of sequestration-typelumbar herniated disc/Chen Qixin(陈其昕,2nd HospMed Col ,Zhejiang Univ,Hangzhou 310009)…∥Chin JOrthop.-2006 ,26(8) .-539 ~543Objective To demonstrate the histopathologicalchanges of sequestration-type herniated disc .and investi-gate the relatedfactors of its absorption.Methods39 tis-sue samples weresurgicallyremovedfrom37 patients withsequestration-type lumbar disc herniation.All the tissueswere performed with HE stain and i mmunohi…     

Lumbus dorsal spine

Morphological changes of motor neurons of spinal cord after peripheral nerve injury , Effect of erythropoietin on expression and its significance of bcl-2 in the rats after spinal cord injury, Radiological comparison of bilateral paravertebral muscles in adolescent idiopathic scoliosis and its potential importance , Chemical radiculitis in lumbar spine , Biological effects of adeno-associated virus vectors of human transforming growth factor β1 and β3 for reversion of rabbit intervertebral disc degeneration , Anterior reversion after failures of posterior pedical screw instrumentation for thoracolumbar burst fracture combined with paraplegia     

Lumbus dorsal spine

Sagittal spine alignment reconstruction in highgrade lumber spondylolisthesis;Clinical signs and symptoms relate to IgM and IgG in herniated lumbar intervertebral disc;The diagnosic and therapeutic value of stress slippage rate on lumbar isthmic spondylolisthesis;Analysis of the parameters about selective anteriot fusion of thoracolumber;Comparative percutaneous with open pedicle screw fixation in the treatment of thoracolumbar burst fractures without neurological deficit     

Lumbus dorsal spine

207585 Surgical treatment for single vertebral skipped vertebral tuberculosis/Zhang Qiang(张强,Dept Orthop, Guangzhou Tubercul Center ,Guangzhou 510095)…∥ Chin J Orthop.-2007 ,27(7) .-494 ~498 Objective To analyze the clinical effects of single vertebral skipped vertebral tuberculosis treated by anterior radical debridement ,autograft of Ti-mesh bone fusion and internal fixation.Methods 21 patients with single verte- bral skipped vertebral tuberculosis,which defined as a nor- mal verteb…     

Lumbus dorsal spine

Meta-analysis of fusion with and without instrumentation in the treatment of chronic low back pain,A prospective study of video-assisted minimal access total lumbar disc replacement： analysis of spinal sagittal balance,Comparative study of posterolateral fusion versus transpedicular grafting for surgically treated burst fractures of thoracolumbar spine,Treatment of unstable thoracolumbar burst fractures： a comparson between anterior approach and posterior approach     

Lumbus dorsal spine

<正>209352 Local X-irradiation promotes regeneration of spinal cord central nervous system in a rat model/Shen Yixin(沈忆新,Dept Orthop,2nd Affil Hosp Suzhou Univ,Suzhou 215004)…∥Chin J Surg.-2009,47(12).-934～936Objective To evaluate the effect of local X-irradiation on spinal cord injury by using physiology,kinology,electrophysiology and histology method.Methods 46 female Spargen-Dawley rats were subjectied to spinal cord injury by weight dropping on T11-12.All animals were divided ito 3 groups randomly.One of the animal groups was irradiated with 10 Gy at the lesion site;another was irradiated with 20 Gy,the other without irradiation is regarded as sham-group.The animals were euthanized at different time points at 4 and 12 weeks after irradiation.Spinal cord callus was assessed by using physiology,kinology,and electrophysiology and histology method.Results In all the groups,the NF at 14 weeks were found higher than that of 6 weeks.Both 10 Gy irradiated and 20 Gy irradiated groups were higher than those of group at each time point (P<0.05).The MBP decreased at 14 weeks in irrdiated groups(P<0.05),but increases at 14 weeks in sham-group(P<0.05),the MBP of irradiated groups was lower than that of sham group at 14 weeks (P<0.05).The GFAP and Nogo-A at 14 weeks were higher than that at 6 weeks in all the groups (P<0.05),and there was no statistical significance with physiology,kinology,electrophysiology test in all groups.Conclusion A self-repair mechanism exists after SCI,which will last at least 14 weeks.Local irradiation promotes the regeneration of spinal cord system after injury to some extent.11 refs,2 tabs.     

Lumbus dosal spine

<正>209195 Biomechanical analysis of a novel perfusional pedicle screw augmentation with bone cement in osteoporotic vertebra/Yang Huilin(Dept Orthopaed First Affil Hosp Soochow Univ Suzhou 215006)…∥Chin J Orthop.-2009,29(3).-241~247Objective To clarify the biomechanical stability of novel perfusional pedicle screw(NPPS) in spinal vertebrae with osteoporosis.Methods Forty-two vertebrae(T11 to L5) obtained from 6 formalin preserved cadavers (5 males and 1 females; mean age,73 years) were used.The mean bone mineral density was (0.696±0.14)g/cm2.The NPPS was inserted into one pedicle of each vertebra,then early-doughtime cement 2 ml was perfused with the bone cement pusher and perfusion tube under X-ray into the vertebra body through the hollow part of NPPS,and the control screw,an improved CD2 screw,was inserted into the contralateral pedicle.Three vertebrae were chosen to observe the distribution of cement,and the other 39 vertebrae were randomly divided into three groups to make the pull-out test,rotation-out torque test,and cyclic bending resistance test respectively.Ten novel perfusional pedicle screws and ten control screws were respectively examined by three-point bend test.Results Cement perfused around the side holes of the distal screw in all vertebral body and no cement leakage occured.The mean maximum force at pull-out was (760±178) N for the NPPS and (355±87)N for the control screw.The mean maximum rotating-out torque was (1.34±0.377)N·m for the NPPS and (0.488±0.205) N·m for the control screw.In cyclic bending resistance test,the NPPS was found to with stand a greater number of cycles or greater loading before loosening.About 30.8%(4/13) of the NPPS became loosing (displacement>2.000 mm),the mean load of the loosening screws was (150±46)N and the mean displacement of the non-loosening screws was (0.661±0.289) mm.All of the control screws were loosening among 50-200 N before 800 cycles.Conclusion The manipulation of NPPS is simple with the application of cement pusher and pe     

Lmnbus dorsal spine

Perioperative complications of single-stage surgical management for spinal tuberculosis; Surgical treatment of cervicothoracic spinal tuberculosis ; Spinal posterior wedge osteotomy for correction of severe kyphosis or kyphoscoliosis caused by thoracical and lumbar tuberculosis ; Diagnosis and treatment of nonunion of osteoporotic thoracolmnbar vertebral fractures     

Lmnbus dorsal spine

The reasons and management of failed spinal deformity surgery; Bony variations of vertebral body in the lumbar spine among patients of lumbar disc herniation and its significance on microendoscopic discectomy; The changes of core protein of proteoglycan and cytokines in the vertebral cartilage endplate of adolescent idiopathic scoliosis; The design and animal study of a new posterior lumbar interbody fusion cage; Neurophysiologic monitoring of spinal nerve root during hunbar intra-pedicular screw fixation;     

Lmnbus dorsal spine

The assessment of accuracy and safety of thoracic pedicle screw placement in the the fracture of thoracic spine,A comparison study of clinical application between balloon percutaneous kyphoplasty and ＂Sky-bone expander＂ percutancous kyphoplasty,Experimental study and clinical applications of computer assisted navigation technique in spinal surgery, Spinal cord abnormality and its clinical signifi-cance in ＂idiopathic＂ left thoracic scoliosis, Computer imaging-guided percutaneous vertebroplasty     

开窗术治疗腰间盘突出症23例

我院自1993年5月～1996年5月应用开窗术治疗腰间盘突出症23例,效果满意,报告如下:1　临床资料及方法本组23例,男18例,女5例,年龄21～65岁,平均42.3岁。病程3个月～6年,平均18个月。突出部位:Ｌ4～517例,Ｌ5Ｓ16例,左侧14例,右侧19例。腰痛伴一侧下肢疼痛20例,仅一侧下肢疼痛3例     

腰椎间盘突出症手术治疗的体会

介绍腰椎间盘突出症手术要点及手术效果不理想原因主要是再粘连、血肿等并发症。指出术中重视预防再度粘连与血肿等并发症的严格处理，是取得满意疗效的关键。该方法用于30例手术病人，随防观察，无明显并发症，取得较理想疗效。     

牵引结合针刺治疗腰椎间盘突出症疗效观察

将88例腰椎间盘突出症患者随机分为两组,采用牵引结合针刺治疗44例为治疗组,常规针刺治疗44例为对照组,观察和比较两组症状及体征改变情况。结果:治疗组治愈率为72.7%,对照组治愈率为50%。结论:牵引结合针刺治疗腰椎间盘突出症疗效明显忧于常规针刺治疗。     

腰椎间盘突出症与前列腺素E2的相关性研究

目的探讨PGE2与LDH的相关性,明晰LDH的炎症机理,为LDH手术方式提供一些理论依据.方法采用放免法检测腰椎间盘突出症(LDH)患者的不同部位(紧贴神经根与远离神经根两部分)的髓核组织的前列腺素E2(PER2)含量,结合临床观察,另外,还检测了正常人椎间盘PGE2含量.结果1.腰椎间盘突出症髓核组织PGE2含量较正常腰椎间盘髓核组织PGE2含量明显增高(P＜0.01).2.腰椎间盘脱出型紧贴神经根部分髓核组织PGE2含量较突出型明显增高(P＜0.01).3.腰椎间盘突出症紧贴神经根部分髓核组织PGE2含量较远离神经根的椎间盘组织PGE2含量高(P＜0.01).4.病程与PGE2的含量有关,病程30天内且症状明显的患者PGE2含量较病程长者高.5.疼痛程度与PGE2含量有关,疼痛评分(VAS)6分以上的患者PGE2含量明显增高(P＜0.01).6.下腰痛与PGE2含量无明确相关性.7.直腿抬高试验与PGE2含量无明确相关性.结论由于LDH远离神经根部分的髓核含有较正常高的PGE2,建议行手术时彻底清除突出的椎间盘组织,并用较大量冰盐水加压冲洗椎间隙及周围组织以减少PGE2等炎性因子的残留.