三维影像引导脊柱椎弓根螺钉置入：准确性分析

背景：椎弓根螺钉置入是一种常见的修复各种脊柱疾病的方法,但在螺钉置入的安全性和准确性方面存在较大的难度。 目的：探讨脊柱椎弓根螺钉置入实施三维影像引导的效果。 方法：回顾性分析漯河市中医院2010年12月至2013年12月收治的118例行椎弓根螺钉置入患者的临床资料,均实施椎弓根螺钉置入内固定治疗,按照引导方式分为两组,每组59例。观察组给予三维影像脊柱导航,对照组给予常规X射线透视。观察两组患者的螺钉置入情况和修复相关指标,置入后随访1-12个月,对两组患者的置入后并发症发生情况进行比较。 结果与结论：观察组59例患者一共置入螺钉325枚,对照组319枚,观察组经评估为优良的有319枚,优良率为95%;对照组经评估为优良的有250枚,优良率为78%,两组差异有显著性意义(P < 0.05)。在螺钉置入所需时间方面,观察组显著短于对照组(P < 0.05)。在手术时间以及术中出血量方面,观察组两项指标均显著优于对照组(P < 0.05)。在螺钉置入后并发症发生率方面,观察组显著低于对照组(P < 0.05)。即表明在三维影像脊柱导航的影像引导下实施脊柱椎弓根螺钉置入内固定,可以有效缩短螺钉置入所需的时间,提高置入的准确性等,并减少各种并发症的出现。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程     

Zero-P椎间融合器颈椎前路置入内固定治疗颈椎病的优势

背景：颈前路椎间盘切除减压植骨融合使用颈前路钢板可能引起治疗后吞咽困难等并发症。 目的：观察采用颈椎前路一体化Zero-p椎间融合器置入治疗颈椎病的临床疗效以及减少治疗后并发症的优势。 方法：采用颈椎前路一体化Zero-p椎间融合器行颈前路椎间盘切除减压植骨融合治疗颈椎病患者51例。在治疗前、治疗后第3天,治疗后3,6个月,治疗后1年及2年等时间节点采用颈部及上肢疼痛目测类比评分、颈椎功能障碍指数、日本矫形外科学会评分法对患者的神经功能情况进行评估;采用吞咽困难评分法对患者术后吞咽困难相关并发症的发生情况进行评估;拍摄颈椎正侧位及动力位X射线片评价术后植骨融合程度及内固定相关并发症情况。 结果与结论：患者随访时间为6-30个月,平均15.4个月。治疗后切口均Ⅰ期愈合,所有患者治疗后获得疼痛缓解,肌力恢复;目测类比评分及颈椎功能障碍指数评分均较术前有显著改善;脊髓型颈椎病患者日本矫形外科学会评分平均改善率为85.7%。治疗后第2天有7例患者出现轻、中度的吞咽困难。随访期间未发现内置物沉降,也未发生螺钉松动、断裂或内固定器移位等并发症。表明颈前路椎间盘切除减压植骨融合式中采用颈椎前路一体化Zero-p椎间融合器置入治疗颈椎病的近期临床效果良好,其设计同时具备了颈椎间融合器以及颈椎前路固定钢板的优点,内固定相关并发症少。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程全文链接：     

骨质疏松椎体压缩性骨折患者脊柱矢状面的失平衡

背景：国内外总结脊柱失平衡的原因包括脊柱畸形、脊柱退变性疾病、骨质疏松椎体压缩性骨折等,作者通过临床研究认为动力性因素(腰背肌)在脊柱矢状面失平衡中起关键作用。 目的：通过观察骨质疏松椎体压缩性骨折患者的临床表现和治疗效果,分析脊柱矢状面失平衡的原因。 方法：回顾性分析2012年1月至2013年5月收治的骨质疏松压缩性骨折伴脊柱矢状面失平衡患者41例,均在局麻下行经皮穿刺球囊扩张椎体成形治疗。治疗前患者均行骨密度、站立位全脊柱正侧位X射线、以伤椎为中心的CT及MR检查。于患者站立位全脊柱正侧位片中测量伤椎前缘高度、脊柱后凸Cobb角及改善角度、伤椎楔形变角度及改善角度;要求患者行负重试验及行走试验,对比治疗前后数据。 结果与结论：治疗前患者出现脊柱矢状面失平衡症状所需行走的距离显著短于治疗后(P < 0.05);治疗前出现脊柱矢状面失平衡负重试验时间亦显著短于治疗后(P < 0.05)。在治疗前后站立位全脊柱正侧位片中,Cobb角的平均差值为(10.01±0.76)°,椎体楔形变改善的平均差值为(4.84±0.40)°,差异有显著性意义(P < 0.05)。所有患者均获随访,患者腰背部疼痛及矢状面失平衡症状明显缓解。所有患者行经皮球囊扩张椎体成形治疗后无严重并发症发生。提示骨质疏松压缩性骨折部分患者会出现脊柱矢状面失平衡症状,原因并非伤椎楔形变单一因素所致。且患者通过经皮球囊扩张后凸成形治疗后,失平衡症状往往会明显改善,提示脊柱骨折后腰痛限制腰背肌力量是导致脊柱矢状面失平衡的一个重要原因。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程全文链接：     

D-二聚体动态监测对预测神经脊柱修复术后下肢深静脉血栓形成的意义

BACKGROUND: Deep vein thrombosis is a common postoperative complication after spinal surgery in clinical department of neurosurgery and department of orthopedics. Deep vein thrombosis is mostly related to vein intima injury, stasis and activation of blood coagulation factor. Early effective prediction can effectively avoid the adverse effects on the prognosis of patients with deep vein thrombosis. D-dimer used in the prediction of deep venous thrombosis has high sensitivity and specificity, and can be used as a sensitive predictor for deep vein thrombosis.     

基于数字技术的国人下腰椎椎弓根螺钉置钉角度特征

背景：椎弓根螺钉内固定是目前脊柱手术的主流术式,置钉安全性的关键是使螺钉通过椎弓根中心,置钉角度是决定修复质量的关键因素,以往文献中确定置钉角度多以患者躯体作为参照物,容易被体位等因素干扰。 目的：应用数字技术以椎体局部解剖标志为参照物对下腰椎椎弓根螺钉置钉角度进行测量。 方法：选取100例患者的3D-CT资料,将第4,5腰椎进行三维重建后利用数字技术进行模拟手术,实现最佳位置置钉。完成模拟置钉操作以后,对椎弓根螺钉的角度进行测量,以螺钉中线与棘突中线所在平面的夹角作为冠状位角度,以螺钉中线与椎体上表面所在平面的夹角作为矢状位角度。 结果与结论：测量结果表明,各角度均较以往文献中所介绍的角度大,考虑为选取参照标志不同所致。各角度值的标准差也较大,说明椎弓根解剖差异较大,因此应注重个体化置钉。这种以单个椎体的解剖标志作为定位参考的方法可以最大程度避免体位的干扰,与术前三维重建等数字技术相结合,更符合个体化置钉的要求,能有效提高置钉的准确性。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程     

3D打印技术在脊柱外科的应用

BACKGROUND: Three-dimensional printing technology is a new technology which can quickly and accurately transform the virtual computer-aided design into the three-dimensional physical prototypes. Three-dimensional printing physical model method can replace the method of traditional preoperative planning and repair surgical simulation, with the characteristic of repeatable, which has been deepened day after day in clinical application of spine surgery. OBJECTIVE: To summarize the application status of three-dimensional printing technology in spine surgery and look forward to its future development directions. METHODS: The articles regarding the application of three-dimensional printing technology on clinical applications in spine surgery were retrieved from PubMed databases, Google Scholar, China National Knowledge Infrastructure and Wanfang Database from January 2000 to July 2015. The key words were 3D printing technology, rapid prototyping technology, spine, vertebra, department of orthopedics, fracture, joint, hand and foot, bone tumor, trauma, cervical vertebrae, thoracic vertebrae, lumbar vertebrae, sacral vertebrae, pedicle of vertebral arch, vertebral body, intervertebral disc, and clinical application. A total of 50 articles with a good representation were selected and discussed after repetitive studies and reviews were excluded. RESULTS AND CONCLUSION: The three-dimensional printing technique has been applied in preoperative diagnosis, individualized orthosis customerization, the communication between doctors and patients, teaching, the formulation of individualized and high-accurate repairing plan, intraoperative navigation and individualized implant customization. These results suggest that with the rapid development of medical imaging, digital medicine and technologies of the cell and tissue culture and new materials, three-dimensional printing technology will have a wide range of applications in spine surgery.       

O-arm三维计算机导航系统引导下置钉修复严重脊柱畸形的安全性

BACKGROUND: O-arm navigation integrates CT image quality and the flexible mobility of the C-arm. Surgery for severe spinal deformity is very difficult, with high incidence of nerve injury, so it is a challenging surgery for spinal surgery. The role of O-arm in the correction of spinal deformity is particularly important.     

脊柱侧弯内固定系统置入及三维重建技术的应用

BACKGROUND: Scoliosis is a complex three-dimensional plane deformity, including lateral bending on the coronal plane, before physiological kyphosis reduction or increase in the sagittal plane, the rotational deformity of the spine in the axial plane. The method of full decompression, maximum reconstruction of spinal balance in coronal and sagittal plane, long-segmental fixation and short-segmental fusion is the more ideal orthopedic method for degenerative scoliosis. OBJECTIVE: To analyze the characteristics of scoliosis fixation system. METHODS: The articles about scoliosis fixation system were retrieved from PubMed database, Chinese Journal Full-text database from 1999 to 2015 by the first author using computer. “Scoliosis, Internal Fixation, Three-dimensional Correction” were taken as the search terms in English and Chinese. Totally 163 relevant articles were retrieved, and eventually 34 articles met the inclusion criteria. RESULTS AND CONCLUSION: With the development of fixation materials, the spinal fixation system which was designed based on three-dimensional orthopedic concept of spine is a dynamically developed system. The goal is to restore the balance of spine in three dimensions as comprehensive as possible. At present, the general spinal system within very broad application includes TSRH spinal fixation system, ISOLA spinal internal fixation system, Moss Miami spinal fixation system, CD Horizon spinal internal system and China Great Wall spinal fixation system. Spinal fixation system possesses three-dimensional orthopedic capability, and can correct the spinal deformity in coronal and sagittal plane, and biomechanics is reasonable, fixed and reliable. Bone grafting material is the key factor of preventing breakage of internal fixation, screw extraction and other complications. Compared with such bone grafting materials made of autologous bone, allograft bone and xenograft bone, artificial bone can shorten the orthopedic time and reduce the risk of concurrent diseases because of bone grafting, which is the future trend of bone grafting material. Meanwhile, three-dimensional reconstruction has been used in clinical practice, and can develop programs for scoliosis orthopedic treatment, provide imaging reference to ensure the security of internal fixation and also has played a huge role in improving the comprehensive efficacy of spinal internal fixation system.       

基于3D打印技术选择性椎弓根螺钉治疗青少年特发性脊柱侧凸

BACKGROUND: Three-dimensional (3D) printing has been popular for preoperative planning, and has been extensively used in bone tumor resection and pelvic fractures achieving satisfactory treatment outcomes. However, seldom used in adolescent idiopathic scoliosis.     

前后联合入路行侧卧位椎弓根钉置入在脊柱外科手术中应用的可行性

背景：传统的内固定方式修复脊柱外科损伤容易出现骨折椎体复位效果欠佳的情况,且术后较易出现椎体高度丢失等。 目的：分析前后联合入路行侧卧位椎弓根钉置入在脊柱外科手术中应用的可行性。 方法：选取2013年2月至2014年10月在宝鸡市中医医院行脊柱外科手术的36例患者,根据修复方式分为两组,对照组18例患者单纯予以俯卧位椎弓根钉置入,试验组18例患者采用前后联合入路侧卧位椎弓根钉置入。术后行CT和X射线片检查,对比两组不良置钉率和神经根损伤率;另外比较两组患者的手术时间、住院时间、开始活动时间、术中出血量及美国脊髓损伤协会脊髓损伤水平评分。 结果与结论：两组患者不良置钉率和神经根损伤率比较,差异有显著性意义(P < 0.05),试验组优于对照组。试验组患者的手术时间、开始活动时间、住院时间明显短于对照组(P < 0.05),术中出血量明显低于对照组(P < 0.05),美国脊髓损伤协会脊髓损伤水平评分明显高于对照组(P < 0.05)。提示在脊柱外科手术中应用前后联合入路侧卧位椎弓根钉置入内固定,可减少患者术中创伤,缩短住院时间,促进脊髓功能恢复。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程     

经伤椎置钉与跨节段椎弓根螺钉置入固定修复胸腰椎骨折的Meta分析

背景：临床上胸腰椎骨折越来越多,但对于胸腰椎骨折固定方式存在较多争论,对于采用经伤椎置钉椎弓根螺钉固定还是传统跨节段椎弓根螺钉固定存在不同观点,尚缺乏循证医学支持。 目的：对经伤椎置钉与跨节段椎弓根螺钉固定治疗胸腰椎骨折固定后效果效果的评价。 方法：按照Cochrane系统评价的方法,检索下列数据库：美国国立医学图书馆数据库、中国知网、万方数数据库,维普数据库并手工检索等方法收集会议文献,检索时间为2005年至2015年3月。收集所有随机对照试验,采用Cochrane协作网提供的软件Revman 4.2进行Meta分析。 结果与结论：通过筛选,总共纳入14个临床对照试验共个956例患者。Meta分析结果显示,伤椎置钉组较跨节段组治疗胸腰椎骨折固定后Cobb角度改善明显(OR=-2.72,95%CI：-3.08至-2.35,P < 0.01)。经伤椎置钉组较跨节段组椎体高度矫正率较高(OR=7.45,95%CI：6.94-7.97,P < 0.01)。经伤椎置钉组较跨节段组相比较内固定失败率较低(OR=0.12,95%CI：0.05-0.27,P < 0.01)。结果证实,经伤椎置钉与跨节段椎弓根螺钉固定治疗胸腰椎骨折相比较固定后Cobb角度改善明显,固定后椎体高度纠正明显以及引起内固定失败率等并发症更少,固定效果较好。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程      

微创经皮与传统开放椎弓根螺钉置入固定胸腰椎骨折的文献荟萃

BACKGROUND: Open reduction pedicle screw fixation for thoracolumbar fracture could obtain satisfactory effects, and has been extensively used. However, it has potential risk during and after repair. Minimally invasive percutaneous pedicle screw technique minimizes the trauma and complications of soft tissue. It remains poorly understood which is better minimally invasive percutaneous or conventional open pedicle screw fixation for the repair of thoracolumbar fracture. OBJECTIVE: To perform quality evaluation and meta-analysis on curative effect and postoperative complications of minimally invasive percutaneous and conventional open pedicle screw fixation in the treatment of thoracolumbar fractures. METHODS: A detailed search of several electronic databases, including Cochrane Library, PubMed, WanFang, CNKI, VIP and CBM, was undertaken. Simultaneously, Chinese Journal of Orthopaedics, Chinese Journal of Orthopaedic Trauma, and Chinese Journal of Trauma were checked by hand to identify controlled trials regarding minimally invasive percutaneous and conventional open pedicle screw fixation in the treatment of thoracolumbar fractures published from inception to 2015, and the references of the included studies were checked. According to inclusion and exclusion criteria, references were screened, data were extracted and quality was evaluated by four investigators independently. Meta-analysis was conducted using RevMan 5.2 software. The quality of references of the included controlled trials was assessed with CONSORT statement and some surgery clinical evaluation indexes. RESULTS AND CONCLUSION: We included 28 studies, including 25 randomized controlled trials/quasi-randomized controlled trials and 3 retrospective comparative studies, with 1 285 patients. Meta-analysis results demonstrated that compared with the conventional open pedicle screw, minimally invasive percutaneous pedicle screw fixation could significantly reduce operation time, blood loss, hospital stays, postoperative complication rate and height loss (P < 0.05). No significant difference in postoperative pain grade was detected between them (P > 0.05). These results indicate that minimally invasive percutaneous pedicle screw fixation for thoracolumbar fracture was safe and reliable, had small trauma, less blood loss, rapid recovery, short hospital stay, and less postoperative complications. Nevertheless, methods and results of most studies are not detailed enough. We suggested reporting randomized controlled trials according to related standards in order to improve the report quality and authenticity of randomized controlled trials.       

Sextant经皮椎弓根钉棒微创系统治疗胸腰椎骨折：随访评价

背景：胸腰椎骨折的保守与传统开放复位内固定治疗均存在诸多不足,微创经皮椎弓根钉棒系统为胸腰椎骨折治疗提供了新的方法。 目的：观察Sextant经皮椎弓根螺钉微创系统治疗胸腰椎骨折的临床效果。 方法：共纳入55例患者,均因单个椎体的单纯压缩性骨折于2011年2月至2013年1月在武汉大学人民医院骨科分别行经皮椎弓根螺钉微创固定和传统开放复位内固定。所有患者均无神经症状和体征。Sextant微创内固定组25例,开放复位内固定组30例。记录并比较2组手术时间、术中失血量、内固定后引流量、住院时间、内固定前后矢状位Cobb角和椎体前缘高度百分比。 结果与结论：除开放复位内固定组2例患者出院后失访外,其余患者均获得随访,总随访时间为8-14个月。微创内固定组患者的手术时间、术中失血量、内固定后引流量和住院天数均显著优于开放复位内固定组(P=0.000 0);2组患者内固定后1周矢状位Cobb 角显著低于内固定前(P=0.000 0),椎体前缘高度百分比显著高于内固定前(P=0.000 0);2组内固定后8个月随访时的矫正丢失量差异无显著性意义。提示Sextant经皮椎弓根螺钉微创系统治疗胸腰椎(T₁₁-L₅)单节段椎体骨折矫正效果满意,但临床应用时需掌握其准确适应证。     

Sextant经皮椎弓根螺钉固定矫正胸腰椎单节段椎体骨折

背景：虽然保守与传统开放复位内固定治疗胸腰椎骨折的疗效通常是可靠和令人满意的,但其也存在诸多不足。微创经皮椎弓根系统为胸腰椎骨折的治疗提供了新的方法。 目的：观察Sextant 经皮椎弓根螺钉系统治疗胸腰椎骨折的临床效果。 方法：共纳入55 例患者,均因单个椎体的单纯压缩性骨折于2011 年2 月至2013 年1 月在武汉大学人民医院骨科分别行Sextant经皮椎弓根螺钉固定(25 例)和传统开放复位内固定(30例)。 结果与结论：除开放复位内固定组2例患者出院后失访外,其余患者均获得随访,随访时间为8-14个月。行Sextant经皮椎弓根螺钉固定患者的手术时间、术中失血量、术后引流量和住院天数均显著优于传统开放复位内固定治疗的患者(P < 0.05);行Sextant经皮椎弓根螺钉固定和传统开放复位内固定的患者内固定后矢状位Cobb角、目测类比评分和功能障碍指数问卷表评分均显著低于内固定前(P < 0.05),而椎体前缘高度百分比显著高于内固定前(P < 0.05);两组患者内固定后8个月随访时的矫正丢失量和功能障碍指数问卷表评分差异无显著性意义(P > 0.05)。提示Sextant经皮椎弓根螺钉系统治疗胸腰椎单节段椎体骨折矫正效果满意,但临床应用时需掌握其准确适应证。中国组织工程研究杂志出版内容重点：人工关节;骨植入物;脊柱;骨折;内固定;数字化骨科;组织工程全文链接：     

新型可灌注骨水泥椎弓根螺钉的生物力学性能及在骨质疏松性腰椎退变中的应用

BACKGROUND: Fragile bone in senile osteoporosis patients easily weakened pedicle screw fixation capacity. Therefore, bone cement leakage and screw removal cannot be solved during pedicle screw repair in osteoporotic patients with degenerative lumbar spine.     

人工骨复合物与经伤椎螺钉置入修复胸腰椎骨折可促进新骨形成

背景：单纯伤椎置钉疗法治疗胸腰椎骨折具有较好的疗效,但存在一定不足,如对于重度压缩或爆裂骨折适用性差、伤椎痛感强、易造成伤椎创面失神经支配和椎旁肌损伤及恢复较慢等。 目的：观察人工骨复合物并伤椎螺钉置入修复胸腰椎骨折的临床效果。 方法：纳入126例胸腰椎压缩骨折患者,其中对照组62例采用常规伤椎放置椎弓根螺钉方法治疗,试验组64例采用人工骨复合物联合伤椎放置椎弓根螺钉方法治疗。随访X射线观察两组骨折愈合、椎体前缘高度百分比、矢状位Cobb角及修复6个月后椎体高度丢失率变化。 结果与结论：所有患者均获得随访,修复后12-16个月,两组骨折椎体愈合完全。修复后1周,两组椎体前缘高度与矢状位Cobb角均较修复前改善(P < 0.01),两组间椎体前缘高度与矢状位Cobb角比较差异无显著性意义(P > 0.05);修复6个月后,试验组在伤椎创面可见明显新骨生成,患者基本无痛感,对照组新骨生成较慢,患者仍有痛感,两组椎体前缘高度丢失量与矢状位Cobb角矫正丢失量比较差异均无显著性意义(P > 0.05)。表明人工骨复合物联合伤椎置钉修复胸腰椎骨折促进新骨形成,有利于患者恢复。中国组织工程研究杂志出版内容重点：生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程全文链接：     

经皮椎弓根螺钉固定治疗胸腰段A3型骨折的临床观察

目的　比较经皮椎弓根螺钉固定和开放式椎弓根螺钉固定治疗胸腰段A3型骨折的临床疗效。 方法　收集我院胸腰段脊柱骨折35例临床资料,所有病例均为没有神经症状,AO分型为A3型骨折。其中观察组18例患者,均行短节段联合伤椎经皮椎弓根螺钉内固定,对照组17例患者,均行开放式短节段联合伤椎椎弓根螺钉内固定。通过VAS疼痛评分、总体满意度评价、影像学随访（VBI评分、VBA评分、Cobb角）来比较两组临床疗效。 结果　观察组的平均手术时间为(53±10)min,对照组的平均手术时间为(90±9) min（P＜0.05）。观察组术中出血量(56±17) ml,对照组术中出血量(331±149) ml（P＜0.001）。观察组在术后7 d的VAS评分显著低于对照组（P＜0.001）。术后随访VBI评分、VBA评分和Cobb角在两组中没有显著差异（P＞0.05）。 结论　短节段联合伤椎经皮椎弓根螺钉固定是治疗胸腰段A3型脊柱骨折的优先选择之一,具有术中出血量少、术后疼痛轻、恢复快、手术时间短等主要优势,值得临床推广。     

同一体位OLIF联合后路导航辅助下经皮椎弓根螺钉固定治疗腰椎退行性疾病的初步应用

目的 评估同一体位斜外侧腰椎椎间融合术(OLIF)联合后路导航辅助下经皮椎弓根螺钉固定治疗腰椎退行性疾病的可行性、安全性及临床疗效。方法 回顾性分析2015年8月～2019年2月于本院行同一体位OLIF联合后路经导航辅助下皮椎弓根螺钉固定治疗的腰椎退行性疾病患者22例。统计手术时间、术中出血量、术中椎弓根螺钉置钉时间,利用腰痛及下肢痛视觉模拟评分(VAS)、Oswestry功能障碍指数(ODI)评估临床疗效。术后CT三维重建评估侧卧位经皮置钉的准确性及椎间融合率。结果 所有患者均获得随访,随访时间12～24个月,平均(15.6±4.8)个月。所有患者均顺利完成手术,手术时间(96.2±15.2) min,术中出血量(62.4±19.3)m L,总置钉时间(33.0±3.6) min。术后随访腰痛VAS评分、下肢痛VAS评分及ODI指数均较术前明显改善,差异具有统计学意义(P0.05)。置钉准确率94.3%,术后1年椎间融合率为100%。结论 同一体位OLIF联合后路导航辅助下经皮椎弓根螺钉固定手术可以避免术中变换体位,精简手术过程,节约手术时间,具有良好的可行性、安全性及临床疗效。     

微创后路经皮椎弓根螺钉内固定修复单纯前中柱损伤的急性胸腰椎骨折：回顾性、自身前后对照临床试验方案

BACKGROUND: Posterior pedicle screw fixation is commonly used for thoracolumbar fracture. However, associated disadvantages include severe trauma, extensive bleeding, long rehabilitation time, and long postoperative duration of intractable lumbar stiffness and low back pain. Percutaneous pedicle screw external fixation can reduce injury caused by screw insertion into the paraspinal muscles; particularly in acute thoracolumbar vertebral compression fracture with simple anterior spinal column injury. We hypothesized that minimally invasive posterior percutaneous pedicle screw fixation for acute thoracolumbar vertebral fractures with simple anterior spinal column injury would exhibit good curative effects.