通用脊柱椎弓根钉棒矫形固定系统治疗胸腰椎骨折脱位的疗效分析

目的评价通用脊柱椎弓根钉棒矫形固定系统治疗胸腰椎骨折脱位的临床效果。方法对应用通用脊柱椎弓根钉棒矫形固定系统治疗的110例胸腰椎骨折脱位的患者进行随访,平均时间为14月。结果术后X线片显示脱位椎体全部复位,随诊时的X线片显示椎弓根钉固定牢固,无松动。并发症6例,术中并发症3例,发生率为2.7%;术后并发症3例,发生率为2.7%。术后神经症状明显改善。结论通用脊柱椎弓根钉棒矫形固定技术治疗胸腰椎骨折脱位疗效确切,是一种简捷,可靠的治疗方法。     

椎弓根钉固定结合伤椎自体骨椎体成形和横突间植骨治疗胸腰椎爆裂骨折

目的 探讨椎弓根钉固定结合伤椎自体骨椎体成形和横突间植骨治疗胸腰椎爆裂性骨折的临床疗效.方法 采用后路椎弓根钉撑开复位后经伤椎单侧或双侧椎弓根自体骨植入椎体成形和横突间植骨治疗胸腰椎爆裂性骨折69例.结果 均顺利完成手术无症状性并发症发生.45例脊髓神经不完全损伤患者,按美国脊髓损伤学会标准评定,术后神经功能均有1级或1级以上恢复.术后末次随访测得椎体前、后缘及中央高度压缩率及Cobb角,与术前相比差异有统计学意义(P<0.05),而与术后即刻相比无统计学意义(P>0.05).骨折椎体高度恢复并维持良好,Cobb角有显著改善.结论 后路椎弓根钉撑开复位后经伤椎单侧或双侧椎弓根自体骨植入椎体成形和横突间植骨治疗胸腰椎爆裂性骨折是一种安全、有效的方法,它可重建并维持脊柱稳定性,提高疗效.     

胸腰椎骨折椎弓根钉系统内固定治疗体会

目的探讨椎弓根内固定系统在胸腰椎骨折内固定中的治疗效果。方法1998年以来,我院采用椎弓根钉系统内固定,后路减压后外侧植骨治疗胸腰段脊柱骨折57例,其中45例获随访,平均16个月(6～22个月)。结果本组除4例单侧螺钉松动外,无严重并发症,X线片随访,脊柱成角及压缩畸形均获较好矫正。结论作者认为对于腰椎段脊柱骨折的手术治疗,椎弓根钉系统内固定较传统哈氏棒具有三维矫形,固定牢固,固定节段少,损伤小,易于取出等优点。     

后路椎弓根钉系统固定加经椎弓根人工骨植入术治疗胸腰椎爆裂性骨折

[目的]评价后路椎弓根钉系统固定加经椎弓根植入人工骨治疗胸腰椎爆裂性骨折的临床疗效,探讨其适应证的选择。[方法]采用爆裂性骨折的Denis分类,对26例无瘫痪胸腰椎爆裂性骨折患者实施后路椎弓根钉系统撑开复位内固定后经椎弓根植入人工骨(NovaBone又名固骼生)进行治疗。26例患者均为单一节段椎体骨折,椎体的破坏程度采用McCormack的LSC评分。[结果]26例病人术后疼痛均明显缓解(VAS评分改善),椎体高度和形态得到明显恢复(Cobb角平均改善11.5°)。经术后平均20.5个月随访,疼痛均消失,骨折均达到满意复位并愈合,无Cobb角加大,未发现明显并发症。[结论]后路椎弓根钉系统固定加经椎弓根植骨术能及时增加椎体的骨容量和脊柱前柱的抗压稳定性,使患者早期活动,减少内固定因应力过大造成的断钉、断杆、椎体再压缩等并发症,是一种治疗胸腰椎爆裂性骨折的有效方法。此方法适用于椎体压缩程度大、或合并有骨质疏松的胸腰椎爆裂性骨折患者。     

经椎弓根椎体内植骨合并伤椎置钉治疗胸腰椎爆裂型骨折

目的分析和讨论经椎弓根椎体内植骨合并伤椎置钉治疗胸腰段脊柱爆裂型骨折的手术技巧和临床疗效。方法采用后路经椎弓根椎体内植骨合并伤椎置钉治疗胸腰段脊柱骨折38例,其中男27例,女11例;年龄为43~65岁,平均49岁。按照Denis分型,A型16例,B型14例,C型6例,D型1例,E型1例。术前按照美国脊髓损伤协会ASIS分级,C级1例,D级8例,E级29例。术前常规完善正侧位X线片、CT、MRI检查。术中先植入椎弓根螺钉,撑开复位后经椎弓根向伤椎内植入人工骨颗粒,再向伤椎内植入椎弓根螺钉。术后复查X线及CT,观测椎体后凸Cobb角度及伤椎椎体前缘压缩比值的变化。结果手术时间平均95min,术中失血量平均200mL。术后1例出现切口感染,予清创、闭式冲洗引流后切口愈合;其余切口一期愈合。术后1年复查CT显示骨折均骨性愈合,人工骨融合良好。术后没有出现椎弓根螺钉松动、断裂等。患者术后1年的伤椎前缘平均压缩比和Cobb角度变化与术后3d相比较,差异无统计学意义。结论采用后路经椎弓根椎体内植骨合并伤椎置钉技术治疗胸腰段脊柱骨折是安全有效的方法,该技术可有效增强脊柱强度,有效减少伤椎复位的丢失和内固定的失败率。     

骨水泥强化椎弓根钉治疗胸腰椎骨质疏松性爆裂骨折

目的探讨应用骨水泥（poly—methylmethacrylate,PMMA）强化椎弓根钉内固定治疗胸腰椎骨质疏松性爆裂骨折的疗效。方法2009年1月至2011年1月应用骨水泥强化椎弓根钉内固定治疗12例胸腰椎骨质疏松性爆裂骨折患者。临床疗效采用视觉模拟（visualanaloguescale,VAS）疼痛评分、ASIA残损分级方法进行评定,应用X线片评估术后内固定效果。结果12例患者术后获6424个月（平均13．4个月）随访,VAS疼痛评分术前平均7．9分降至术后平均1．2分,7例合并神经损伤的患者ASIA残损分级术后改善1～2级。61枚椎弓根钉中44枚行骨水泥强化,术后所有患者均未出现与骨水泥渗漏有关的神经症状和体征。X线片示椎弓根钉未发生松动及脱出,周围无透亮线出现。后凸角由术前平均22．6°改善至术后平均10．3°,末次随访时后凸角平均为14．3°。结论应用骨水泥强化椎弓根钉内固定治疗胸腰椎骨质疏松性爆裂骨折可获得满意的临床疗效。     

经皮椎弓根内固定治疗胸腰椎Chance骨折

[目的]研究胸腰椎Chance骨折的微创治疗方法,探讨经皮椎弓根固定治疗胸腰椎Chance骨折的临床效果。[方法]采用经皮椎弓根内固定治疗不合并神经损伤的胸腰椎Chance骨折13例;T_(10)1例,T_(11)1例,T_(12)3例,L_13例,L_23例,L_32例;Denis分型:Ⅰ型8例、Ⅱ型2例、Ⅲ型2例、Ⅳ型1例。[结果]13例患者术后均获随访,随访时间12~42个月,平均21个月。所有患者脊柱后柱分离得到了恢复,脊柱前柱压缩也得到改善,脊柱后凸畸形纠正,骨折全部骨性愈合。无内固定失败及感染等并发症。[结论]经皮后路椎弓根钉内固定可有效的恢复脊柱的稳定性,是治疗不合并神经损伤胸腰椎Chance骨折的有效方法。     

钉棒系统加自体骨移植治疗胸腰椎压缩性骨折的疗效观察

[目的]应用椎弓根钉棒系统加自体骨移植治疗胸腰椎压缩性骨折与单纯采用内固定钉棒系统进行比较，寻找一种适合人体胸腰椎压缩性骨折的治疗方法。[方法]采用内固定钉棒系统同时行椎板减压共治疗126例胸腰椎骨折病人，其中54例患者在骨折椎体复位后经椎弓根植入自体骨碎块。[结果]54例胸腰椎骨折病人术后X线证实椎弓根钉位置好，伤椎复位及外形好。术后神经症状减轻或无加重现象。经8个月～3a6个月随访，症状明显减轻。X线证实伤椎内植骨者比单纯钉棒复位者矫正度数丢失明显减少。[结论]采用椎弓根钉棒系统加自体骨移植治疗胸腰椎压缩性骨折能有效维持椎体高度，使内固定螺丝钉断钉率显著降低。防止远期脊柱后凸畸形，减少伤部椎管内神经的继发性损伤。     

单侧伤椎置钉结合打压植骨治疗胸腰椎爆裂骨折

目的探讨单侧伤椎置钉结合经椎弓根打压植骨术治疗胸腰椎爆裂性骨折的临床疗效。方法回顾性分析2009年7月至2012年7月42例行单侧伤椎置钉结合经椎弓根打压植骨治疗的胸腰椎爆裂性骨折患者的临床资料,其中男30例,女12例;年龄21~56岁,平均(37.2±3.6)岁。高处坠落伤25例,交通伤9例,重物砸伤8例。T129例,L123例,L27例,L33例。比较患者术前、术后1周、术后2年的伤椎前缘高度、椎管侵占率、脊柱后凸角(Cobb角)、疼痛视觉模拟评分(visual analogue scale,VAS),根据美国脊柱损伤协会分级评定脊髓损伤恢复情况。结果术后随访12~48个月,术前与术后1周在伤椎前缘高度、椎管侵占率、脊柱后凸角(Cobb角)、疼痛VAS评分上差异有统计学意义(P0.05)。末次随访结果与术后1周相比较,以上指标差异无统计学意义(P0.05)。随访期间美国脊柱损伤协会脊髓损伤分级提高1~2级。结论单侧伤椎置钉结合经椎弓根打压植骨术治疗胸腰椎爆裂性骨折能恢复伤椎高度,改善后凸畸形,减少矫正丢失,是一种治疗胸腰椎爆裂骨折的有效方法。     

椎弓根钉固定结合经伤椎椎弓根植骨治疗严重胸腰椎爆裂骨折

目的 研究采用椎弓根钉固定结合经伤椎椎弓根植骨治疗严重胸腰椎爆裂骨折的临床疗效.方法 采用椎弓根钉固定结合经伤椎椎弓根植骨治疗严重胸腰椎爆裂骨折28例.结果 本组获得18～25个月的随访,骨折椎体达到解剖复位25例,手术前后椎体前缘高度、Cobb角、腰背痛VAS评分都存在明显差异(P＜0.05),术后均未出现新的神经症状或神经症状加重,植入骨粒全部骨性愈合,1例发生断钉.结论 严重胸腰椎爆裂性骨折采用椎弓根钉固定结合经伤椎椎弓根植骨治疗可恢复椎体高度、角度,减轻腰背疼痛,手术安全,疗效满意.     

Spinal fractures in patients with ankylosing spinal disorders: a systematic review of the literature on treatment, neurological status and complications

The ankylosed spine is prone to fracture after minor trauma due to its changed biomechanical properties. Although many case reports and small series have been published on patients with ankylosing spondylitis (AS) suffering spine fractures, solid data on clinical outcome are rare. In advanced diffuse idiopathic skeletal hyperostosis (DISH), ossification of spinal ligaments also leads to ankylosis. The prevalence of AS is stable, but since DISH may become more widespread due to its association with age, obesity and type 2 diabetes mellitus, a systematic review of the literature was conducted to increase the current knowledge on treatment, neurological status and complications of patients with preexisting ankylosed spines sustaining spinal trauma. A literature search was performed to obtain all relevant articles concerning the outcome of patients with AS or DISH admitted with spinal fractures. Predefined parameters were extracted from the papers and pooled to study the effect of treatment on neurological status and complications. Ninety-three articles were included, representing 345 AS patients and 55 DISH patients. Most fractures were localized in the cervical spine and resulted from low energy impact. Delayed diagnosis often occurred due to patient and doctor related factors. On admission 67.2% of the AS patients and 40.0% of the DISH patients demonstrated neurologic deficits, while secondary neurological deterioration occurred frequently. Surgical or nonoperative treatment did not alter the neurological prospective for most patients. The complication rate was 51.1% in AS patients and 32.7% in DISH patients. The overall mortality within 3 months after injury was 17.7% in AS and 20.0% in DISH. This review suggests that the clinical outcome of patients with fractures in previously ankylosed spines, due to AS or DISH, is considerably worse compared to the general trauma population. Considering the potential increase in prevalence of DISH cases, this condition may render a new challenge for physicians treating spinal injuries.     

3D打印技术辅助中上胸椎椎弓根置钉的准确性分析

目的评价3D打印技术在中上胸椎"分水岭"区域损伤(T3~7)椎弓根置钉时的应用价值。方法回顾性分析自2013-03—2016-02手术治疗的7例T3~7骨折或脱位。对患者进行薄层CT扫描,采用3D打印技术打印出中上胸椎实体模型,在模型上标定需固定节段的椎弓根钉进钉点(Magerl法),测量每一个节段螺钉的直径、长度、内倾角、头倾(尾倾)角,然后选择合适的椎弓根钉模拟置钉。结果本组共置入56枚椎弓根钉,按目前通行的评估椎弓根钉准确性的方法,在CT平扫的影像上对椎弓根穿透的程度进行分级:0级33枚,1级18枚,2级4枚(穿破外侧壁),3级1枚(穿破外侧壁,未造成不良后果),准确率91.1%。结论对于中上胸椎椎弓根置钉困难的患者,尤其是需要长节段置钉时,可以在3D打印的实体模型上模拟置钉,选择安全、有效的椎弓根钉,提高徒手置钉准确率,缩短了年轻医师的学习曲线。     

Verletzungen der Halswirbelsäule bei der diffusen idiopathischen skelettalen Hyperostose

The incidence of diffuse idiopathic sceletal hyperostosis (DISH) is described in men more than 50 years old up to 25% and in women up to 15%. Even little trauma in patients with DISH often leads to injuries of the spine, especially the cervical spine. In many cases MRI is necessary to find the injury in this anatomically modified spine. It is often difficult to detect the injury by plane radiographs or even CT. Based on two cases of cervical spine fractures in patients with DISH we will describe the difficulties and specialities in the diagnostics and surgical treatment of injuries of the cervical spine in patients with DISH. In the one case we stabilized a patient with an odontoid fracture type Andersson II, the other case was a traumatic spondylolisthesis C4/C5. Both cases were treated operatively, the odontoid fracture was stabilized by a single screw, the spodylolisthesis by a ventral plate. If there are modifications in the spinal anatomy by degenerative diseases like DISH or spondylitis ankylosans, it is important to perform an intense search for injuries of the spine. In many cases MRI is indicated to detect the injury because plane radiographs and CT are not sensitive enough. For the planning of the operation it is important to meet concerns to the thick anterior longitudinal ligament and to use screws, that are long enough because the use of standard instruments is often not successful.     

浮椎损伤的诊断及早期治疗探讨

目的:探讨浮椎损伤的临床特点及早期治疗原则。方法:椎间结构严重损伤、椎体附件骨折伴椎体严重的前侧方脱位患者6例,男4例,女2例;年龄24~58岁,平均36岁。6例均有不同程度的脊髓损伤,按Frankel分级,A级2例,B级3例,C级1例。早期手术探查及选择不同的内固定和植骨方式,5例采用长节段经椎弓根后路固定,1例采用短节段经椎弓根后路固定;2例采用单纯椎体间植骨,3例采用椎间融合器植骨,1例采用关节突及椎板后外侧植骨。结果:6例均获随访,随访时间12~18个月,平均15个月。无术中血管、神经损伤;未见内固定松脱、断裂等并发症。6例均获骨性融合,术后未发生椎体再滑脱。脊髓功能Frankel分级:2例A级者术后无改善,3例由B级恢复至D级,1例由C级恢复至E级。结论:脊柱极度不稳,脊髓损伤可能相对较轻,由于脊髓、神经根可能因逃逸而避免严重损伤,长节段经椎弓根后路固定及植骨融合有利于维持伤椎间的稳定,浮椎损伤早期手术复位容易,椎间植骨能获得较高骨性融合率。     

Spinal trauma in DISH and AS: is MRI essential following the detection of vertebral fractures on CT?

BACKGROUNDBoth ankylosing spondylitis (AS) and diffuse idiopathic skeletal hyperostosis (DISH) cause a rigid spine, but through different pathophysiology. Recent data has shown that characteristic fracture patterns may also differ following trauma since the posterior osseous and soft tissue elements are often spared in DISH. CT and MRI are important in diagnosing spine injury, but given the differences between AS and DISH, the utility of obtaining both studies in all patients warrants scrutiny.PURPOSETo assess the prevalence of posterior element injury on CT and MRI in DISH and AS patients with known vertebral body injury detected on CT; to determine whether MRI demonstrates additional injuries in neurologically intact patients presumed to have isolated vertebral body injuries on CT.STUDY DESIGNMulticenter, retrospective, case-control study.PATIENT SAMPLEDISH and AS patients presenting after spine trauma between 2007 and 2017.OUTCOME MEASURESReview of CT and MRI findings at the time of presentation.METHODSOne hundred sixty DISH and 85 AS patients presenting after spine trauma were identified from 2 affiliated academic hospitals serving as level 1 trauma and tertiary referral centers. A diagnosis of DISH or AS was verified by a board-certified emergency radiologist with 3 years of experience. Age, gender, mechanism of injury, fracture type, spine CT and MRI imaging findings, surgical intervention, and neurologic deficit were recorded. The CT and MRI studies were reviewed by the same radiologist for fracture location and type using the AO spine classification. No funding source or conflict of interest was present.RESULTSMedian age was 72 and 79 years old for the AS and DISH groups, respectively. Both were predominantly male (81%) and most presented after a low energy mechanism of injury (74% and 73%). Type C AO spine injuries were seen in 52% of AS patients but only 4% of DISH patients. In patients with known vertebral body injury on CT, additional injury to the posterior elements on CT or MRI in DISH patients was 51% versus 92% in AS patients. However, in patients with an isolated vertebral body fracture on CT and no neurological deficit, MRI identified posterior element injury in only 4/22 (18%) DISH patients compared to 5 of 7 (71%) AS patients. None of the MRI findings in the DISH patients were considered clinically important while all 5 AS patients eventually underwent operative treatment despite having no neurological deficit. Epidural hematoma on MRI was seen in 43% of AS patients as opposed to 5% of DISH patients.CONCLUSIONBased on our small sample size, CT alone may be adequate in DISH patients with isolated vertebral body fractures and no neurologic deficit, but an additional MRI should be considered in the presence of an unclear neurological exam or deficit. MRI should be strongly considered for any AS patient regardless of neurologic status.     

浮椎损伤的诊断及早期治疗探讨

目的:探讨浮椎损伤的临床特点及早期治疗原则。方法:椎间结构严重损伤、椎体附件骨折伴椎体严重的前侧方脱位患者6例,男4例,女2例;年龄24⁵8岁,平均36岁。6例均有不同程度的脊髓损伤,按Frankel分级,A级2例,B级3例,C级1例。早期手术探查及选择不同的内固定和植骨方式,5例采用长节段经椎弓根后路固定,1例采用短节段经椎弓根后路固定;2例采用单纯椎体间植骨,3例采用椎间融合器植骨,1例采用关节突及椎板后外侧植骨。结果:6例均获随访,随访时间12¹8个月,平均15个月。无术中血管、神经损伤;未见内固定松脱、断裂等并发症。6例均获骨性融合,术后未发生椎体再滑脱。脊髓功能Frankel分级:2例A级者术后无改善,3例由B级恢复至D级,1例由C级恢复至E级。结论:脊柱极度不稳,脊髓损伤可能相对较轻,由于脊髓、神经根可能因逃逸而避免严重损伤,长节段经椎弓根后路固定及植骨融合有利于维持伤椎间的稳定,浮椎损伤早期手术复位容易,椎间植骨能获得较高骨性融合率。     

Intradiscal pressure changes with dynamic pedicle screw systems

STUDY DESIGN: In vitro study using porcine spines instrumented with pedicle screw and rod fixation. OBJECTIVES: To determine the intradiscal pressure (IDP) changes with the use of dynamic and rigid pedicle screw systems in simulated spinal fusion. SUMMARY OF BACKGROUND DATA: The intervertebral discs are prone to injury under conditions of altered IDP. The effects of instrumentation with dynamic pedicle screw systems on IDP have not been clearly delineated. METHODS: A 2-level posterior instrumentation was applied to fresh porcine spinal segments (n=16). Dynamic and rigid pedicle screw constructs along with uninstrumented (n=6) spinal segments as controls were tested. The spinal segments were subjected to 24,000 cycles of flexion compression loading at 5 Hz. IDP within the instrumented (L2-L3 and L3-L4) and adjacent (L1-L2 and L4-L5) discs were measured using a pressure transducer needle. Results were recorded at 6000 cycle intervals. RESULTS: Instrumentation increased IDP. Within the instrumented levels, the greatest increase in IDP was found at the L2-L3 disc. Here, after 24,000 loading cycles, IDP for spines instrumented with mobile screws was 6.8 times higher than that of uninstrumented spines whereas for rigid screws the factor was 9.1. For the L3-L4 cases, the presence of instrumentation increased IDP by factors of 1.7 and 2.7 for mobile and rigid screws, respectively. In the uninstrumented levels, IDP at L1-L2 and L4-L5 was lower with mobile screws. These were statistically significant at for L1-L2 (24,000 cycles, P=0.008) and L4-L5 level (12,000, 18,000, and 24,000 cycles, P<0.04 in all cases). CONCLUSIONS: Of the 2 types, mobile screws produced the least increase in IDP. This feature might be beneficial for the fusion process while at the same time prevent secondary pathology such as premature disc degeneration and facet joint pathology due to excessive disc pressures.     

微创通道下减压结合经皮螺钉复位固定治疗伴有神经根损伤的胸腰椎骨折

目的探讨在微创通道下减压结合经皮椎弓根螺钉复位内固定治疗伴有神经根损伤的胸腰椎骨折的可行性及疗效。方法 2012年1月~2014年7月本院收治不同节段胸腰椎骨折伴有神经根损伤患者30例,采用微创通道下神经根减压结合经皮螺钉复位内固定治疗。其中男18例,女12例;年龄28~61岁,平均42岁。骨折节段及神经根损伤节段为T11~L3,均为单节段神经根不完全损伤,无脊髓、圆锥或马尾损伤。测量术前、术后及末次随访时伤椎前缘相对高度及Cobb角,评价骨折椎体复位情况。采用日本骨科学会(Japanese Orthopaedic Association,JOA)评分(29分)评价术前、术后及末次随访时患者的神经功能。结果所有患者均手术顺利,无明显手术并发症。随访12~42个月,平均27个月。术后X线片提示螺钉位置满意。末次随访X线片提示所有螺钉无错位且无断钉。术后及末次随访时的伤椎前缘相对高度、Cobb角、JOA评分与术前相比,差异均具有统计学意义(P0.05)。结论微创通道下减压结合经皮螺钉复位内固定术治疗伴有神经根损伤的胸腰椎骨折临床效果满意,且创伤小、恢复快、并发症少,安全可靠。     

聚甲基丙烯酸甲酯强化对骨质疏松椎弓根螺钉固定的生物力学作用

目的探讨聚甲基丙烯酸甲酯 (polymethylmethacrylate,PMMA)骨水泥强化椎弓根螺钉的方法和评价 PMMA强化骨质疏松椎弓根螺钉后的生物力学性质。方法 6具新鲜老年女性胸腰段骨质疏松脊柱标本 (T10～ L5),使用双能 X线骨密度吸收仪测试每个椎体的骨密度,随机取 16个椎体 (32侧椎弓根 ),一侧椎弓根拧入 CCD螺钉,测量最大旋入力偶矩后拔出螺钉作为正常对照组,用 PMMA骨水泥强化椎弓根螺钉作为修复固定组,行螺钉拔出试验;另一侧经导孔直接强化椎弓根螺钉后拔出作为强化固定组,记录三组螺钉的最大轴向拔出力。结果椎体平均骨密度为 (0.445± 0.019)g/cm2;螺钉最大旋入力偶矩为（ 0.525± 0.104） Nm;正常对照组螺钉最大轴向拔出力为 (271.5± 57.3)N;修复固定组为 (765.9± 130.7)N;强化固定组为 (845.7± 105.0)N。 PMMA骨水泥强化或修复骨质疏松椎弓根螺钉后最大抗压力明显高于强化前,差异有非常显著性意义 (P< 0.01)。结论 PMMA骨水泥强化骨质疏松椎弓根螺钉能显著增加螺钉在椎体内的稳固性。     

C2椎弓根螺钉联合C3侧块螺钉固定治疗不稳定性Hangman骨折

目的探讨C2椎弓根螺钉联合C3侧块螺钉内固定治疗不稳定性Hangman骨折的临床效果及应用价值。方法 2005年8月至2010年12月采用后路C2椎弓根螺钉联合C3侧块螺钉内固定治疗16例不稳定性Hangman骨折患者,男11例,女5例;年龄19～59岁,平均35.4岁。骨折按Levine-Edwards分类,型9例,a型5例,型2例。脊髓损伤按Frankel分级,D级3例,E级13例。结果所有患者均获随访,随访时间9～36个月（平均18个月）。手术时间95～170 min（平均114 min）,术中出血290～450 mL（平均353 mL）,术后6个月复查时,骨折均愈合,无断钉、断棒及螺钉松动发生,颈部活动功能恢复良好。脊髓功能D级3例均恢复至E级。结论经后路C2椎弓根螺钉联合C3侧块螺钉内固定是治疗Hangman骨折的良好手术方式。