经椎弓根截骨矫正强直性脊柱炎后凸畸形及疗效分析

目的 研究经椎弓根截骨矫正强直性脊柱炎后凸畸形的手术方法及其疗效.方法 2006年1月～2010年7月该科收治12例强直性脊柱炎后凸畸形患者,男性10例,女性2例,平均年龄37.5岁(24～58岁).全部采取后路经椎弓根截骨矫形术,术前在纸样上模拟截骨,术前和术后测量颌眉角以及全脊柱侧位X片测量胸腰椎后凸角,统计术前术后VAS及ODI评分.结果 患者术后视线角度改善明显,平均随访28个月,所有患者术区无假关节形成,患者矫正度无丢失,腰背痛等症状明显改善,平均颌眉角、矢状位平衡、Cobb角、VAS及ODI均改善明显(P＜0.05).结论 采用术前模拟截骨确定截骨部位及角度,行后路经椎弓根截骨矫形术治疗强直性脊柱炎后凸畸形是一种较好的治疗方法.     

经椎弓根楔形精确截骨和“蛋壳”技术截骨治疗胸腰段骨折后凸畸形的临床疗效比较

目的比较经椎弓根楔形精确截骨和"蛋壳"技术截骨治疗胸腰段骨折后凸畸形的临床疗效。方法回顾性分析2013年4月至2016年11月分别行经椎弓根截骨术(PSO)的胸腰椎骨折继发后凸畸形患者36例,按照手术方式分为楔形组(PSO楔形精确截骨)17例和蛋壳组(PSO"蛋壳"技术截骨)19例。记录术前术后后凸Cobb角、VAS和ODI评分、ASIA脊髓功能分级及手术时间、术中出血量、并发症情况等。结果手术时间两组比较无显著差异,术中出血量楔形组明显少于蛋壳组(P0.05)。随访时间10-18个月[(12.3±4.5)个月]。楔形组和蛋壳组后凸Cobb角术后6个月和末次随访较术前均明显矫正(P0.05);VAS评分和ODI指数术后6个月和末次随访较术前均显著改善(P0.05)。末次随访与术后6个月比较,楔形组矫正丢失角度明显小于蛋壳组(P0.05)。楔形组术前6例C级3例末次随访恢复至D级,4例D级2例恢复至E级;蛋壳组术前8例C级3例末次随访恢复至D级,5例D级3例恢复至E级。术后两组患者均有1例出现脑脊液漏;楔形组末次随访未见假关节形成,融合率100%,蛋壳组有4例出现假关节,融合率78.9%。结论 PSO楔形精确截骨术和PSO"蛋壳"技术截骨术均能有效矫正胸腰椎骨折继发后凸畸形,术后矫正效果满意,疼痛和神经功能障碍恢复明显。但PSO楔形精确截骨术术中出血更少,能更好地避免术后假关节形成,且融合率较高。     

后路截骨矫形治疗陈旧性胸腰椎骨折并后凸畸形

目的探讨后路经椎弓根楔形截骨矫形内固定术对陈旧性胸腰段骨折合并后凸畸形的临床疗效。方法对28例胸腰段陈旧骨折并不同程度后凸畸形患者,采用后路经椎弓根楔形截骨矫形、减压内固定术治疗,对比手术前后后凸角、颌眉角、矢状面平衡的变化以及患者疼痛缓解和神经功能恢复程度。结果术后患者后凸畸形明显矫正,矢状面平衡恢复,无内固定失败;术后随访,患者VAS评分和JOA评分均较术前显著改善（P〈0.05）。结论后路经椎弓跟楔形截骨矫形内固定术是治疗胸腰椎陈旧性骨折合并后凸畸形的较为理想的手术方法,手术创伤小,并发症少,具有满意的短期和长期疗效。     

经部分椎弓根终板下楔形截骨治疗陈旧性胸腰段后凸畸形33例

目的评价经部分椎弓根终板下楔形截骨治疗陈旧性胸腰段后凸畸形的临床效果。方法33例胸腰椎晚期后凸畸形患者,25例有进行性腰背部疼痛、平卧困难,8例伴有不同程度神经损害症状（Frankel分级,C级3例,D级5例）;术前Cobb＇s角25-71°,平均44．6°。手术均采用单纯后路经部分椎弓根终板下楔形截骨,短节段椎弓根螺钉内固定脊柱,重建脊柱矢状面平衡。结果术后Cobb’s角平均6．1°,P〈0．01,胸腰椎后凸畸形矫正率86．5％,重建脊柱矢状面平衡,神经损害症状恢复（Frankel分级,C、D级,6例神经功能恢复正常,2例C级恢复至D级）,外形满意,平均术中出血940ml,输浓缩红细胞2～8u,随访期间无断钉、断棒发生。术后平均随访16个月,平均矫正度数丢失2．1°。结论对于创伤后胸腰段后凸畸形,Cobb’s角〈60。的患者单纯后路经部分椎弓根终板下楔形截骨手术治疗是理想选择,易于推广。     

经椎弓根楔形截骨前方垫高-后方闭合矫正术治疗静止期胸腰椎结核角状后凸畸形

目的探讨经椎弓根楔形截骨前方垫高-后方闭合矫正术治疗静止期胸腰椎结核角状后凸畸形的临床疗效。方法对30例静止期胸腰椎结核角状后凸畸形患者采用经椎弓根楔形截骨前方垫高-后方闭合矫正术治疗,观察患者术后切口愈合、感染、Cobb角、视觉模拟评分法（VAS）评分及植骨融合情况。结果患者均顺利完成手术,手术切口一期愈合,未发生切口感染等并发症。术后均获得随访,随访时间3~45（24.4±7.4）个月。术后1周、末次随访后凸Cobb角均较术前明显减少,差异均有统计学意义（均P＜0.05）;但末次随访与术后1周后凸Cobb角比较差异无统计学意义（P＞0.05）。VAS评分由术前4~8（5.4±1.3）分降至术后1周的0~3（1.2±0.4）分,差异有统计学意义（P＜0.05）。术后随访过程中,患者植骨均达到骨性融合。患者腰背部疼痛及神经功能障碍均得到不同程度改善。结论经椎弓根楔形截骨前方垫高-后方闭合矫正术治疗静止期胸腰椎结核角状后凸畸形疗效满意,是一种较为安全、理想的手术方式。     

后路脊柱截骨矫形术治疗脊柱后凸畸形的临床探讨

目的：总结脊柱后路截骨矫形术治疗脊柱后凸畸形的治疗经验。方法：5例强直性脊柱炎患者平均后凸角度在79.0°,行L1、L3双节段楔形截骨矫形术,5例外伤性或结核性角状后凸脊柱畸形角度小于50.0°者采用单节段楔形截骨闭合矫形术,5例大于50.0°者采用单节段截骨前方垫高、后方闭合矫形术,对这些临床资料进行回顾性分析。结果：15例患者得到术后平均11个月的随访,于术后6个月均获得骨性融合。术前后凸角平均为62.3°,术后后凸角平均为15.5°,平均矫正度数为46.8°,矫正率为75.1%;术后平均身高增加4.4 cm。术前5例神经损害病例,C级1例恢复至D级,C级1例恢复至E级,D级3例恢复至E级;腰背部疼痛不适症状明显减轻。结论：弧形后凸畸形,可通过多椎体楔形截骨增加截骨度数,大角度角状后凸畸形可通过单节段截骨前方垫高、后方闭合矫形术增加矫形度数,后路楔形截骨矫形术是治疗脊柱后凸畸形的有效方法。     

腰椎椎弓根楔形截骨术治疗强直性脊柱炎后凸畸形

目的 探讨腰椎椎弓根楔形截骨术治疗强直性脊柱炎后凸畸形的临床疗效.方法 2005年1月至2010年3月,第二军医大学长海医院骨科共收治32例强直性脊柱炎后凸畸形患者,均行一期后路经腰椎椎弓根楔形截骨矫形内固定术.其中27例患者行单节段椎弓根楔形截骨术,5例患者行双节段椎弓根截骨术.术前及术后随访时拍摄脊柱全长X线片,测量影像学参数,并填写中文版脊柱侧凸研究学会22项(SRS-22)量表进行患者的健康生存质量评价.结果 手术时间平均为(260±42) min,术中出血平均(1 360±282) mL,平均随访(31±8)个月(24～76个月),均未出现神经系统并发症及假关节.患者颌眉角、全脊柱后凸角、胸腰段后凸角、腰椎前凸角由术前(65.9±11.6)°、(78.2±15.9)°、(38.9±10.3)°、(14.6±17.3)°分别矫正至术后(11.7±4.7)°、(38.9±10.3)°、(1.3±7.8)°、(26.2±5.6)°;身高和矢状面失平衡距离由术前的(135.4±15.2) cm、(37.2±11.3) cm分别矫正至术后的(166.2±9.6) cm、(12.7±7.7) cm,差异均有统计学意义(P＜0.01).SRS-22评分由术前平均(1.8±0.4)改善至术后(4.0±0.6),疗效满意.结论 腰椎椎弓根楔形截骨术治疗强直性脊柱炎后凸畸形安全可靠,可获得满意的临床效果.     

陈旧性胸腰椎骨折并后凸畸形截骨矫形的治疗效果观察

目的比较经椎弓根椎体截骨(PSO)与经椎间隙楔形截骨(IWO)对陈旧性胸腰段脊柱后凸畸形患者矢状面平衡重建的效果。方法回顾性分析2011年9月至2016年10月20例行PSO或IWO矫形内固定术的陈旧性胸腰段脊柱后凸畸形患者资料。其中PSO组10例(男3例,女7例),年龄为53~68岁,平均Cobb角(37.20±8.71)°;IWO组10例(男2例,女8例),年龄为49~75岁,平均Cobb角(35.07±9.43)°。所有患者随访时间均在1 a以上。测量患者术前、术后及末次随访时矢状面Cobb角、Oswestry功能障碍指数(ODI)及视觉模拟评分(VAS)。结果所有患者的矢状面参数(Cobb角、ODI评分、VAS疼痛评分)术前、术后和末次随访相互比较,差异有统计学意义(P<0.05)。两组患者的矢状面参数(Cobb角、ODI评分和VAS疼痛评分)术前、术后及末次随访中比较,差异无统计学意义(P均>0.05)。结论 PSO和IWO均能有效重建陈旧性胸腰段脊柱后凸畸形的矢状面形态并获得良好的临床效果。     

腰椎后路楔形截骨术治疗重度脊柱侧后凸畸形的疗效分析及术后康复

目的分析腰椎后路楔形截骨术对重度脊柱侧后凸畸形的临床疗效及术后康复影响。方法选取80例重度脊柱侧后凸畸形病人作为研究对象,随机分为观察组和对照组,各40例。对照组实施经椎弓根椎体截骨治疗,观察组实施腰椎后路楔形截骨治疗及术后康复训练。观察2组术前、术后的Cobb角矫正、Oswestry功能障碍指数（ODI）、日常生活活动能力（ADL）评分、脊髓神经功能Frankle分级和并发症发生情况,以及手术时间、术中出血量、术后住院时间、平均固定节段数等临床手术指标资料。结果2组组内术前、术后Cobb角差异均有统计学意义（P < 0.01）,术后Cobb角明显低于术前（P < 0.01）;但术前和术后2组间Cobb角差异均无统计学意义（P>0.05）。2组组内术前、术后ODI和ADL评分差异均有统计学意义（P < 0.01）,2组间术后6个月、12个月的ODI和ADL评分差异均有统计学意义（P < 0.05~P < 0.01）。术前2组间Frankle分级差异无统计学意义（P>0.05）,术后12个月2组间Frankle分级差异有统计学意义（P < 0.01）。观察组术中出血量和术后住院时间均明显低于对照组（P < 0.01）,2组间手术时间和平均固定节段数差异均无统计学意义（P>0.05）。结论腰椎后路楔形截骨术创伤小,结合术后康复训练可改善病人腰椎功能和脊髓神经功能障碍,提高病人生活质量,值得临床推广应用。     

陈旧性胸腰椎骨折后凸畸形的截骨矫治

目的 探讨后路顶椎楔形截骨术治疗陈旧性胸腰椎骨折所致脊柱后凸畸形的方法及治疗效果.方法 28例陈旧性胸腰椎骨折后凸畸形患者,伴骨髓损伤者21例,平均伤后32个月,均行顶椎楔形截骨、椎弓根内固定系统固定术,比较手术前后结果.术后随访13～28月,平均16.2月.结果 所有患者手术后胸腰椎生理弧度良好,后凸Cobb'S角由术前30,3°±3.3°恢复为手术后的7.2°±4.0°(P<0.05),平均矫正角度为27.2°±7.4°,随访无角度丢失;15例CT复查显示手术减压满意;21例术前伴脊髓损伤者手术后Frankel恢复一级以上者为18例(85.7%);所有患者腰背部疼痛均明显减轻.结论 顶椎楔形截骨术是治疗陈旧性胸腰椎骨折所致后凸畸形的一种有效方法,具有畸形矫正满意、人路简单、显露充分、脊髓前后方均可有效减压、手术后伤椎稳定且并发症少等特点.     

后路改良经椎弓根截骨术治疗创伤后胸腰椎后凸畸形

目的：评价后路改良经椎弓根截骨术(modified pedicle subtraction osteotomy,PSO)治疗陈旧性胸腰椎骨折伴后凸畸形的临床效果和安全性 。方法：回顾分析中南大学湘雅二医院2003年1月至2013年1月采用改良PSO治疗的58例陈旧性胸腰椎骨折伴后凸畸形患者的临床资料,其中45例为初次手术患者,13例为翻修手术患者。对所有患者的矫正情况进行随访,采用疼痛视觉模拟量表(visual analogue scale,VAS)评分、Oswestry功能障碍指数(Oswestry disability index,ODI)对腰椎功能进行评估。结果：随访24~60个月,平均42个月,手术时间190~430 min,平均285 min(初次手术平均时间为210 min,翻修手术平均时间为345 min);术中失血量为600~1 600 mL,平均950 mL(初次手术为710 mL,翻修手术为1 450 mL);所有患者术后均获得功能及自我形象的改善,后凸角得到了17.9°±4.3°的矫正,腰痛VAS评分下降(3.1±0.6)分,ODI下降(25.3±5.5)%;所有病例截骨面均获愈合,愈合时间为3~6个月,平均4.5个月。19名患者出现术后并发症,3名患者出现2种并发症。术后12例(20.7%)出现脑脊液漏。3例(5.2%)术前无神经损害症状的患者术后出现一侧大腿麻木、无力,术后3个月后症状消失。4例发生伤口浅表感染,3例出现尿路感染,予静脉抗生素治疗有效。所有病例螺钉位置准确,无神经血管损伤并发症病例出现。结论：改良的PSO作为创伤后胸腰椎后凸畸型治疗是一种安全可靠的方法。     

短节段固定椎间融合治疗胸腰椎陈旧骨折并后凸畸形

目的：探讨经后路短节段固定、椎间固定融合治疗胸腰椎陈旧骨折合并后凸畸形的有效性。方法采用后路短节段固定、椎间固定融合治疗胸腰椎陈旧骨折合并后凸畸形21例,全部患者均有不同程度腰背部疼痛,严重者合并下肢神经损伤症状,术前后凸 cobb 角度为19°～42°,平均28°。其中,共有8例骨块突入椎管内,骨块突入椎管内占矢状径1／3者4例,1／2者2例,大于1／2者2例。术前、术后、随访时测量后凸 cobb 角,并评估神经损伤程度 Frankel 分级。结果本组病例手术均顺利完成,患者神经功能均有不同程度恢复和改善。术后 X 线片检查显示所有的患者均示骨性愈合,内固定物无松动、断裂,椎间融合器无塌陷。术后 cobb 角为0～11°,平均4．8°。结论采用后路短节段固定、椎间固定融合治疗胸腰椎陈旧骨折合并后凸畸形创伤小,出血少,方法简单,矫形效果良好,不失为一种较好的方法。     

The height of the osteotomy and the correction of the kyphotic angle in thoracolumbar kyphosis

Background This study investigated the relationship between the height of osteotomy and the correction of the kyphotic angle during posterior closing wedge osteotmy with instrumentation and the spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach in thoracolumbar kyphosis, and using this relationship as the basis of the preoperative design. Methods From April 1996 to June 2007, 30 thoracolumbar kyphosis patients with complete medical records and clear X-ray photograms have undergone operation. Of these 30 cases, 16 cases underwent posterior closing wedge osteotmy with instrumentation while the height of the osteotomy and the correction of the angle have been measured; 14 cases underwent spinal osteotomy with cage inserting into the intervertebral gap and closing posteriorly by a single posterior approach while the height of the osteotomy, the height and the place of the cage and the correction of the angle were also measured. A simple geometrical model was simulated to calculate the relationship between the height of the oeteotomy and the correction of the angle and these results are finally compared with the data coming from the actual measuring by the Wilcoxon statistic method. Results The distribution of data from the 16 cases by posterior closing wedge osteotomy with instrumentation was as such： 9 male and 7 female, the mean age was 49.2 years （range 38--70）, the kyphosis improved from an average of 30° （range 15°--45°） preoperatively to 4° （range -26°--30°） postoperatively, the kyphosis was corrected on average 2.5-0 per 1 mm in the height of the osteotomy. The results from the simple geometrical model were that the mean of the correction of the angle per 1 mm was 2.2°. As a result, there was no significant difference （P 〉0.05） when comparing the measurement collected with the result simulated from the geometric model. The distribution of data from the 14 cases by spinal osteotomy with cage inserting into the interv     

先天性胸腰段半椎体并重度僵硬性脊柱侧后凸畸形的后路松解楔形截骨矫治

目的探讨先天性胸腰段半椎体并重度僵硬性脊柱侧后凸畸形患者采用经后路松解楔形截骨治疗的安全性和临床初步效果,并探讨其融合固定节段（LIV）的选择。方法选择我院2006年7月～2011年10月收治的先天性胸腰段半椎体并重度僵硬性脊柱侧后凸畸形患者10例临床资料,均行经后路松解楔形截骨矫形手术,以触及椎（touched vertebrae,TV）（指站立前后位像上被骶正中线触及的最近端椎体）作为融合固定下端椎。结果本组10例患者均顺利完成手术。平均松解3.0个椎间隙;手术时间4.5～9.4 h,平均6.3 h;术中出血量680～10 000 mL,平均985 mL;术后侧凸Cobb角6°～32°,平均18.7°,平均矫正率为27.2%;后凸Cobb角-8°～22°,平均8.3°,平均矫正率为88.6%;C7铅垂线与骶正中线距离0.1～2.3 cm,平均0.6 cm,冠状位平衡平均矫正率为78.1%。随访14～35个月,平均23.4个月,末次随访侧凸Cobb角8°～57°,平均29.7°,丢失率为7.3%;后凸Cobb角22°～38°,平均29.9°,丢失率为7.7%。结论经后路松解楔形截骨矫治先天性胸腰段半椎体并重度僵硬性脊柱侧后凸畸形安全有效,选择TV作为LIV可以减少融合节段。     

经椎弓根椎体截骨Gss内固定术对脊柱后凸畸形的治疗体会

目的：探讨脊柱后凸畸形的手术方法和治疗体会。方法：应用经椎弓根椎体截骨Gss内固定术治疗脊柱后凸畸形共33例。结果：随访6—28个月,术前Cobb角37°-83°,平均57°,术后Cobb角平均12．5°,平均矫正44．5°,矫正率78．1％。结论：经椎弓根椎体截骨结合Gss内固定术是治疗脊柱后凸畸形满意和可靠的方法。     

Closing-opening wedge osteotomy for thoracolumbar traumatic kyphosis

Background

Surgical treatment modalities for post-traumatic kyphosis (PTK) remain controversial. Like vertebral column resection, closing-opening wedge osteotomy (COWO) can achieve satisfactory results for kyphosis with multiple etiologies. However, few studies have assessed this procedure for PTK. Our purpose was to evaluate the radiographic and clinical outcomes of COWO in a selected series of patients with PTK via a single posterior approach.

Methods

In this retrospective case series, seven patients with symptomatic PTK in the thoracolumbar spine were reviewed. Five patients underwent surgery at the time of initial injury, and the other two initially underwent conservative treatment. All seven patients underwent COWO procedures through a single posterior approach. The Cobb angle was assessed preoperatively, postoperatively, and at the final follow-up. A visual analog scale (VAS) and the American Spinal Injury Association scale were used to evaluate back pain and neurological function preoperatively and at final follow-up, respectively. Operation-associated complications were also recorded.

Results

The mean follow-up period was 34.3 months (range, 24 to 43 months). The mean kyphotic angle was significantly (P <0.05) reduced from 57.7° (range, 36° to 100°) preoperatively to 8° postoperatively (range, −12° to 50°). The mean VAS improved from 5.9 to 2.1 (P <0.05). Three patients exhibited improved neurological function. Bony fusion was achieved in all patients. No significant correction loss or permanent complication was noted.

Conclusions

Though technically demanding, COWO via a single posterior approach can provide satisfactory outcomes for selected patients with PTK. Additional studies are required to improve patient selection and outcomes for this condition.     

改良V形截骨矫正胸腰椎后凸的临床应用分析

目的探讨改良V形截骨在矫正胸腰椎后凸的应用。方法选择因胸腰段后凸而行手术治疗的患者64例,将其分为传统组和改良组,传统手术组30例,男20例,女10例;年龄45～68岁。改良手术组34例,男22例,女12例：年龄53～65岁。分析两组矫正后凸Cobb角及术后并发症。结果改良组和传统组矫正后凸Cobb角无明显差异（P〉0．05）,改良组术后胃肠道并发症较传统组发生率明显降低,差异有统计学意义（P〈0．05）。结论改良V形截骨术式可以矫正Cobb角〈80°的脊柱后凸畸形,明显降低胃肠道及血管事件等并发症的发生。     

前路减压内固定治疗胸腰椎爆裂骨折并截瘫

目的探讨前路减压内固定治疗胸腰椎爆裂骨折并截瘫的临床疗效。方法回顾经前路减压内固定手术治疗的23例胸腰椎爆裂骨折并截瘫的患者,并分析前路手术的优缺点、适应证及内固定的选择。结果所有患者脊髓均获得有效减压,15例获得随访,术后平均随访3.5年,发现植骨块融合良好,伤椎高度基本恢复,Cobb s角由术前平均170°恢复到50,°Frankel分级恢复一级者5例,恢复二级者5例,无变化者5例。结论前路减压内固定术是集减压、复位、内固定、植骨融合、矫正畸形、重建脊柱稳定一次完成的有效方法,但手术创伤大,出血较多,应严格掌握手术指征。     

后路全椎体切除技术在外伤后严重陈旧性胸腰段后凸畸形矫正中的应用

Background Post-traumatic kyphosis is a common potential complication of spinal trauma and correct management of this problem is becoming ever more impcrtant.Although posterior vertebra column resection has been increasingly adopted to correct severe spinal deformity,no series of reports were found on severe post-traumatic kyphosis in the thoracolumbar region.Therefore,the present cohort retrospective study is presented to evaluate the clinical and radiographic results of posterior vertebra column resection with instrument fusion performed in patients with severe post-traumatic kyphosis.Methods From May 2004 to May 2006,53 patients（38 male,1 5 female）at an average age of 37.6 years（range,24 to 66 years）,were surgically treated for symptomatic post-traumatic thoracolumbar kyphosis with a posterior wedge closing osteotomy at our hospital.Among them,5 consecutive adult patients with severe post-traumatic kyphosis were included in this study.Operation time, blood lOSS and complications were noted in each case.Radiographic documentation was made on the basis of standing anterior-posterior（AP）and lateral views and three dimensional reconstruction images of computed tomography （CT） scans were used to further identify the apex region of a sharp angular deformity.Sagittal correction was assessed in terms of effective regional deformity（ERD）for the injury Ievel.Assessment of radiological fusion at follow-up was based on the presence of trabecular bone bridging at the osteotomy site according to Brantigan.Preoperative and postoperative clinical assessments were performed by using Oswestw disability index（ODI）, back pain was rated in all patients by the visual analog scale （VAS） preoperatively,postoperatively and at the latest follow-up.Results The mean operating time was 265 minutes（220-408 minutes）,with an average blood loss of 1 362 ml （870-2570 m1）.Each patient finished at least two years of follow-up.The average ERD significantly decreased from 69°（58°-86°）,preoperatively to 4°（1°-8°） after surgery （P=0.01 7）;with a mean correction of 65°.ERD averaged 1 0.4°（7°-1 7°）at the latest follow-up with a mean loss of 6.4°.VAS and ODI scores improved from preoperative 7.4（6.0-9.0） and 55.2（48.0-60.0） to 2.3（1.0-4.0） and 1 2.2（7.0-18.0）at the latest follow-up.Full bone fusion was achieved in all patients.Complications occurred in two patients：one had a transient weakness of the Ieft side lower extremity and the symptom improved spontaneously without further treatment within one month;the other patient suffered a deep wound infection three weeks after the operation,and recovered well by additional debridement,continuous perfusion and drainage.Conclusions Posterior vertebra column resection can satisfactorily correct severe post-traumatic kyphosis in thoracolumbar region.Nevertheless,this challenging procedure should be performed by experienced spinal surgeon to minimize complications.     

后路360°植骨融合治疗强直性脊柱炎胸腰椎应力骨折的临床研究

目的  探讨单纯后路360°植骨融合内固定治疗强直性脊柱炎（AS）胸、腰椎应力骨折的手术方法及治疗效果。方法  对13例AS胸、腰椎应力骨折行后路360°植骨融合内固定患者行回顾性分析及随访。其中,3例行单侧关节突切除,经椎间孔入路椎间植骨+后外侧植骨椎弓根系统内固定;4例行单节段或多节段V形截骨（SPO）手术,经椎间孔椎间植骨+椎间融合器置入,后路椎弓根系统加压矫正脊柱后凸;6例伴明显后凸患者行假关节远端邻椎改良经椎弓根截骨术（PSO）+椎间植骨+椎间融合器置入,后路椎弓根系统矫正后凸畸形。结果  术后患者腰腿痛症状明显好转,后凸Cobb角平均矫正33°。2例并发脑脊液漏,无深部感染及神经系统并发症。术后平均31个月随访显示,假关节部位全部骨性愈合,无椎弓根钉棒断裂、松脱发生。结论  AS胸、腰椎应力骨折为三柱骨折,极不稳定,应行积极手术治疗。经后路固定,椎间孔入路行椎间植骨可达360°融合目的,手术安全可靠。经后路放置椎间融合器可增加椎间融合率,并有利于后凸畸形矫正。伴严重后凸畸形患者,同时行假关节部位椎体截骨,可有效矫正后凸畸形。