应用经皮椎体成形术治疗骨质疏松性椎体骨折的研究

目的 探讨椎体成形术（PVP）在治疗骨质疏松性椎体压缩性骨折（OVCF）中的作用.方法 31例骨质疏松性压缩性骨折患者接受了椎体成形术,患者均有背部疼痛.在X线透视引导下,经单侧或双侧椎弓根入路行PVP,每个椎体注入骨水泥量为3～8 ml,平均6.0 ml,完成46个椎体成形术.术后患者随访1～18个月.结果 31例中绝大多数患者术后6 h～2 d疼痛明显缓解或消失.结论 椎体成形术为骨质疏松压缩性骨折经保守治疗无效患者提供了一种安全、微创、有效的治疗方法.     

经皮穿刺椎体成形术治疗骨质疏松椎体压缩骨折

目的 研究经皮穿刺椎体成形术在治疗疼痛性骨质疏松脊柱压缩骨折中的效用。方法 2年内15例有1－6个月背部、腰部疼痛伴行动障碍需止痛药治疗患（男5人、女10人），年龄58－81岁，经临床、CT及MRI评价为骨质疏松椎体压缩且近期有进展，在CT引导下完成经皮穿刺椎体成形术22例次。治疗效果采用Huskisson止痛视觉评分法评估。结果 13例患（86．7％）在24h内疼痛缓解，12例停用止痛药，余下的2例有轻微疼痛好转（13．3％）。1例患3个月后由于相邻椎体出现新的压缩而疼痛复发，二次治疗好转。结论 经皮穿刺椎体成形术用于骨质疏松椎体压缩是一种微创操作，可以立即缓解疼痛并使患很快恢复运动，是一种有价值的治疗骨质疏松压缩骨折的方法。     

改良经皮椎体成形术在骨质疏松椎体压缩性骨折中的应用

目的 通过比较改良经皮椎体成形术(PVP)、PVR经皮椎体后凸成形术(PKP)治疗老年骨质疏松椎体压缩性骨折(OVCF)的疗效,探讨改良PVP在临床应用中的优势. 方法 对2007年6月至2010年7月收治并获得随访的97例老年OVCF患者临床资料进行回顾性分析,男36例,女61例;年龄56～89岁,平均68.3岁;总计124个椎体,单个椎体骨折74例,2个椎体骨折19例,3个椎体骨折4例;胸椎73个,腰椎51个.根据手术方法不同分为PVP组(26例)、PKP组(39例)和改良PVP组(32例).对比3组患者术前、术后1周、术后6个月的视觉疼痛模拟评分(VAS)和伤椎cobb角的恢复情况及术后骨水泥渗漏情况. 结果 所有患者术后获7 ～20个月(平均13个月)随访,其中3例出现神经根症状,但表现不明显.无脊髓损伤、感染及血管栓塞等并发症发生.3组患者术后1周、术后6个月的VAS评分分别与术前比较差异均有统计学意义(P＜0.05),3组患者同一时间点VAS评分比较差异均无统计学意义(P＞0.05).PKP组和改良PVP组患者术后1周、术后6个月的cobb角分别与术前比较差异均有统计学意义(P＜0.05).改良PVP组和PKP组的cobb角恢复优于PVP组,差异有统计学意义(P＜0.05).改良PVP组、PKP组的骨水泥渗漏率远低于PVP组,差异均有统计学意义(P＜0.05).结论 改良PVP能迅速缓解OVCF患者疼痛,与传统PVP相比,在纠正椎体后凸角度和降低骨水泥渗漏方面明显改善.临床疗效与PKP相当,但费用远较PKP低.     

Risk factors of developing new symptomatic vertebral compression fractures after percutaneous vertebroplasty in osteoporotic patients

Percutaneous vertebroplasty (PVP) is an efficient procedure to treat pain due to osteoporotic vertebral compression fractures (OVCFs). However, some patient populations experience recurrent vertebral fracture after initial successful procedure. There are a lot of literatures about the effectiveness of this procedure but few concerning the development of recurrent, new compression fracture. This is a retrospective review of all PVPs performed in author’s institution from September 1999 to December 2001 to investigate the factors related to the development of new symptomatic OVCFs after PVPs. A retrospective review of 244 cases of PVP for symptomatic OVCFs at 382 levels was performed. Sociodemographic, clinical, radiologic, and procedural data were analyzed and compared between the two patient groups (control group : no further symptomatic OVCFs after the initial PVP, “new symptomatic fracture” group: with newly developed symptomatic OVCF). Statistical analysis was performed between the variables of the two groups. Survival analysis was performed using the Kaplan–Meier method. Over all, 38 among 244 treated patients (15.6%) had experienced newly developed symptomatic OVCF(s) during the follow up period (mean 52.5 months). Old age and the presence of multiple treated vertebrae at the initial PVP were assessed as a strong parameter for predicting new symptomatic OVCF. With increasing preoperative wedging deformity the risk of developing new symptomatic OVCF decreased. The Kaplan-Meier estimate of the 1 year fracture-free rate was 92.2%. The Kaplan–Meier curve showed that 7.8% of the patients would experience new symptomatic OVCF within 1 year after initial PVP. A preoperative only mild wedge deformity of the fractured vertebra(e) could indicate the increased risk of developing new symptomatic OVCF after vertebroplasty.     

超高龄骨质疏松性胸腰椎压缩骨折经皮椎体成形术术后邻椎再骨折的危险因素分析

目的 ：分析超高龄骨质疏松性椎体压缩骨折（osteoporosis vertebral compression fractures,OVCFs）经皮椎体成形术（percutaneous vertebroplasty,PVP）术后邻近椎体再骨折的危险因素。方法：对2012年6月至2019年6月采用PVP治疗的40例超高龄（年龄≥90岁）OVCFs患者进行回顾性分析,其中男7例,女33例;年龄90～101(94.6±1.6)岁。根据是否发生邻近椎体再骨折进行分组,其中20例患者PVP术后发生再骨折（再骨折组）,20例术后没有发生邻近椎体再骨折（对照组）。统计两组患者的一般资料、影像学数据、骨盆参数,项目包括年龄,性别,体质量指数（body mass index,BMI）,骨折部位,骨密度（bone mineral density,BMD）T值,骨折至手术时间,伤椎压缩程度,伤椎前缘恢复程度,骨水泥注入量,骨水泥是否渗漏,骨盆指数（pelvic index,PI）,骨盆倾斜角（pelvic tilt angle,PT）,骶骨角（sacral angle,SS）等。将可能与再骨折相关的因素纳入...     

改良法经皮椎体成形术治疗骨质疏松性椎体重度压缩骨折

目的探讨改良法经皮椎体成形术(PVP)治疗骨质疏松性椎体重度压缩骨折的可行性、疗效及椎体高度的变化。方法回顾性分析应用改良法PVP治疗的36例骨质疏松症患者并46节重度压缩骨折椎体的临床及影像学资料。患者术前接受二维CT及MR检查。术中采用单侧跨中线穿刺,注射骨水泥前摒弃椎体骨静脉造影。术后1日复查二维CT。于CT矢状面图像测量椎体高度,并比较PVP术前及术后椎体前缘、中央和后缘的高度变化。结果 36例患者采用单侧跨中线穿刺治疗全部成功,椎体前缘、中央、后缘恢复高度分别为(2.37±2.10)mm、(2.61±2.21)mm、(0.23±0.44)mm。随访1～29个月,完全缓解(CR)、部分缓解(PR)和无效(NR)例数分别为27例、8例、1例,总有效率为97.22%。结论改良法PVP治疗骨质疏松性椎体重度压缩骨折可行、有效,可提高压缩椎体的高度。     

聚甲基丙烯酸甲酯与磷酸钙骨水泥在骨质疏松性胸腰椎压缩骨折中的临床疗效分析

目的 观察经皮椎体成形术(PVP)应用2种不同充填材料治疗骨质疏松性胸腰椎压缩骨折(OVCF)的临床疗效.方法 回顾性分析采用PVP治疗OVCF 78例,分为充填材料为聚甲基丙烯酸甲酯骨水泥(PMMA)组(A组)42例,充填材料为新型注射型自固化磷酸钙骨水泥(CPC)组(B组)36例.比较A、B组术前、术后伤椎椎体前、后缘高度比,脊柱后凸Cobb角,疼痛视觉模拟评分(VAS)等指标.结果 术后A、B组上述指标较术前均有明显改善(P＜0.05);术后1周,A组对疼痛改善程度要优于B组(P＜0.05);术后1个月及3个月时,A、B组间各项指标比较,差异无统计学意义(P＞0.05).结论 经皮椎体成形术中应用PMMA与CPC均能够有效缓解OVCF引起的疼痛,但使用PMMA组近期止痛效果略优于CPC组.     

中粘度与高粘度骨水泥治疗骨质疏松性椎体压缩骨折的疗效对比

目的探讨中粘度与高粘度骨水泥注入在经皮椎体成形术治疗骨质疏松性椎体压缩骨折(OVCF)的临床疗效对比。方法对2012-10-2015-03采用PVP治疗且随访时间≥1年的118例骨质疏松性椎体压缩骨折患者资料进行回顾性分析,按使用骨水泥粘度不同分为2组:中粘度组71例,男21例,女50例,平均年龄为(68.6±8.6)岁,应用中粘度骨水泥进行治疗。高粘度骨水泥组47例,男15例,女32例;平均年龄为(69.1±8.9)岁,应用高粘度骨水泥进行治疗。对两组患者的手术时间、骨水泥注入量、骨水泥渗漏率、骨折椎体高度恢复程度、后凸Cobb角矫正度数、疼痛视觉模拟评分(VAS)及Oswestry功能障碍指数(ODI)进行对比分析。结果高粘度组患者手术时间[(40.6±9.2)min]较中粘度组[(49.2±10.3)min]短,高粘度组患者骨水泥渗漏率[27.7%(13/47)]较中粘度组[36.6%(26/71)]低,差异均有统计学意义(P0.05)。骨水泥注入量、术后椎体前缘压缩改善程度及后凸Cobb角矫正度数比较,两组差异均无统计学意义(P≥0.05)。两组患者术后VAS、ODI评分均明显低于术前,差异有统计学意义(P0.05),两组患者术后3个月VAS评分低于术后24 h,术后12个月ODI评分低于术后3个月,比较差异有统计学意义(P0.05)。两组患者之间术后VAS、ODI评分比较差异无统计学意义(P≥0.05)。结论中粘度与高粘度骨水泥应用于经皮椎体成形术治疗骨质疏松性椎体压缩骨折均能获得满意的临床效果,高粘度骨水泥操作简单,注射易操控,骨水泥渗漏率低,相对中粘度骨水泥手术安全性高,值得临床推广应用。     

Adjacent vertebral failure after vertebroplasty: a biomechanical study of low-modulus PMMA cement

PMMA is the most common bone substitute used for vertebroplasty. An increased fracture rate of the adjacent vertebrae has been observed after vertebroplasty. Decreased failure strength has been noted in a laboratory study of augmented functional spine units (FSUs), where the adjacent, non-augmented vertebral body always failed. This may provide evidence that rigid cement augmentation may facilitate the subsequent collapse of the adjacent vertebrae. The purpose of this study was to evaluate whether the decrease in failure strength of augmented FSUs can be avoided using low-modulus PMMA bone cement. In cadaveric FSUs, overall stiffness, failure strength and stiffness of the two vertebral bodies were determined under compression for both the treated and untreated specimens. Augmentation was performed on the caudal vertebrae with either regular or low-modulus PMMA. Endplate and wedge-shaped fractures occurred in the cranial and caudal vertebrae in the ratios endplate:wedge (cranial:caudal): 3:8 (5:6), 4:7 (7:4) and 10:1 (10:1) for control, low-modulus and regular cement group, respectively. The mean failure strength was 3.3 ± 1 MPa with low-modulus cement, 2.9 ± 1.2 MPa with regular cement and 3.6 ± 1.3 MPa for the control group. Differences between the groups were not significant (p = 0.754 and p = 0.375, respectively, for low-modulus cement vs. control and regular cement vs. control). Overall FSU stiffness was not significantly affected by augmentation. Significant differences were observed for the stiffness differences of the cranial to the caudal vertebral body for the regular PMMA group to the other groups (p < 0.003). The individual vertebral stiffness values clearly showed the stiffening effect of the regular cement and the lesser alteration of the stiffness of the augmented vertebrae using the low-modulus PMMA compared to the control group (p = 0.999). In vitro biomechanical study and biomechanical evaluation of the hypothesis state that the failure strength of augmented functional spine units could be better preserved using low-modulus PMMA in comparison to regular PMMA cement.     

球囊扩张椎体后凸成形术对骨质疏松压缩骨折止痛和椎体高度恢复的影响

目的 评价应用经皮球囊扩张椎体后凸成形术治疗对疼痛性胸腰椎骨质疏松压缩骨折止痛效果和对椎体高度恢复的影响.方法 应用球囊扩张椎体后凸成形术治疗胸腰椎骨质疏松压缩骨折患者45例85椎(T4-L4),年龄53～86岁(平均71岁),有症状的节段均做MRI证实.手术后当天和术后随访分别进行疼痛得分VAS(visual ana...     

经皮椎体成形术治疗老年骨质疏松性椎体压缩性骨折

2006年1月～2011年12月,我们采用经皮椎体成形术(PVP)治疗28例老年骨质疏松性椎体压缩性骨折患者,疗效满意,报道如下。1材料与方法1.1病例资料本组28例,男10例,女18例,年龄71～82岁。单椎体压缩性骨折21例,多椎体压缩性骨折7例。     

应用经皮椎体成形术治疗上胸椎Ⅱ型血管瘤

目的分析应用经皮椎体成形术(percutaneous vertebroplasty,PVP)治疗上胸椎Ⅱ型血管瘤的临床疗效。方法 2009年1月～2010年12月应用PVP治疗上胸椎(T1～6)椎体血管瘤12例。男3例,女9例,平均年龄51.3岁。分析手术前后及末次随访时胸背疼痛视觉模拟量表(visual analog scale,VAS)评分、Oswestry功能障碍指数(Oswestry disability index,ODI)变化。结果 12例患者均顺利完成手术,2例患者出现椎旁静脉骨水泥栓塞,均未出现肺栓塞及神经损害。12名患者均获得随访,平均随访11.8个月,未发现椎体血管瘤复发。患者术后2周及末次随访时胸背痛VAS评分和ODI均较术前显著改善。结论 PVP是治疗上胸椎Ⅱ型椎体血管瘤的有效方法,治疗时需注意上胸椎的解剖特点,减少并发症。     

椎体成形术治疗隐性骨质疏松性椎体骨折中不同骨水泥分布的临床疗效比较

目的比较椎体成形术治疗隐性骨质疏松性椎体骨折的两种骨水泥分布特点和两者的临床疗效。 方法回顾性收集我院2017年3月至2019年2月采用椎体成形术治疗隐性骨质疏松性椎体骨折的病例资料。根据椎体内骨水泥的形状分为海绵状分布组和团块状分布组,比较两组患者的一般情况、术中状态、术后1天Macnab疗效评价、以及术前和术后2个月的疼痛视觉模拟评分（VAS）和Oswestry功能障碍指数（ODI）。 结果椎体成形术治疗隐性骨质疏松性椎体骨折患者共计130例,其中海绵状分布组62例,团块状分布组68例,两组患者的一般情况差异无统计学意义。①海绵状分布组的骨水泥注射量少于团块状分布组（P<0.01）。②与术前相比,两组患者术后2个月的VAS评分与ODI评分均降低（P<0.01）,并且海绵状分布组的VAS评分与ODI评分低于团块状分布组（P<0.01）。③在Macnab疗效评价方面,海绵状分布组的优秀率95.16%,团块状分布组的优秀率83.82%,海绵状分布组优于团块状分布组（P<0.05）。 结论在椎体成形术治疗隐性骨质疏松性椎体骨折中,与团块状的骨水泥推注方式相比,海绵状的骨水泥推注方式能够减少骨水泥的用量,取得更好的临床效果,值得临床推广。     

高黏度骨水泥治疗骨质疏松性椎体压缩骨折的疗效

目的观察经皮椎体成形术(PVP)中使用高黏度骨水泥治疗骨质疏松性椎体压缩骨折的疗效及并发症。方法对60例骨质疏松性椎体压缩骨折患者(98个椎体)采用高黏度骨水泥PVP治疗。观察手术前后腰痛VAS评分、脊椎功能障碍指数(ODI)、骨水泥渗漏及邻近椎体骨折等并发症发生率。结果 60例均获得随访,时间3~6(4.2±1.4)年。VAS评分由术前6~10(8.4±1.2)分降低到末次随访时0~3(0.7±0.8)分(P0.001);ODI由术前45%~91%(63.7%±15.9%)降低到末次随访时2%~31%(8.4%±6.6%)(P0.001)。共8个椎体(8.2%)发生骨水泥静脉渗漏,6个椎体(6.1%)发生椎间盘渗漏,8个椎体(8.2%)发生椎旁渗漏,2例(3.3%)发生邻近椎体骨折。结论采用高黏度骨水泥行PVP治疗骨质疏松性椎体压缩骨折可获得满意的临床疗效,骨水泥渗漏率及邻近椎体骨折发生率均较低。     

经皮椎体成形术中采用新型Vessel-X骨材料填充器治疗骨质疏松性椎体压缩性骨折

目的 对比经皮椎体成形术(PVP)中采用新型Vessel-X骨材料填充器(Vessel-PVP)与传统PVP治疗老年骨质疏松性椎体压缩性骨折(OVCF)的临床疗效及安全性.方法 2015年6月—2018年12月,本院收治老年OVCF患者119例,前期67例采用传统PVP治疗(对照组),后期52例采用Vessel-PVP...     

预测骨质疏松性椎体压缩骨折经皮椎体成形术后残余背痛的列线图

目的: 构建预测骨质疏松性椎体压缩性骨折(osteoporotic vertebral compression fractures,OVCFs)经皮椎体成形术(percutaneous vertebroplasty,PVP)后残余背痛(residual back pain,RBP)的列线图。方法: 回顾性分析2020年1月至2022年12月245例接受PVP治疗的OVCFs患者的临床资料,男47例,女198例,年龄65~77(71.47±9.03)岁,根据是否发生RBP分为RBP组与无RBP组。收集患者的性别、年龄、合并症情况、骨折发生节段、身体质量指数(body mass index,BMI)、骨密度(bone mineral density,BMD)、视觉模拟评分(visual analogue scale,VAS)、Oswestry功能障碍指数(Oswestry disability index,ODI)等一般资料;以及术前与术后24 h的影像学参数,包括椎体前缘高度(anterior vertebral height,AVH)、椎体前缘高度比(anterior vertebral height ratio,AVHR)、Cobb角、椎体内真空裂(intravertebral vacuum cleft,IVC)、胸腰筋膜(thoracolumbar fascia,TLF)损伤、椎旁肌脂肪变性、骨水泥注射量、骨水泥渗漏、骨水泥弥散形态、椎体前缘高度恢复比(anterior vertebral height recovery ratio,AVHRR)、Cobb角变化等。对以上因素进行单因素分析,再采用多因素Logistic回归模筛选术后发生RBP的独立危险因素,并完成Nomogram模型的构建与验证,分别采用受试者工作特征(receiver operating characteristic,ROC)曲线和校准曲线进行模型的预测性能和准确性的判定,另采用Hosmer-Lemeshow (H-L)检验进行评估,计算ROC曲线下面积(area under curve,AUC),使用Harrell一致性指数(C指数)评价模型的预测效能,使用决策曲线分析(decision curve analysis,DCA)评价模型的临床实用性。结果: RBP组34例,无RBP组211例。两组性别、年龄、合并症、骨折节段、BMI、BMD、VAS及ODI、AVH、AVHR、Cobb角等比较,差异均无统计学意义(P>0.05)。单因素分析结果显示:RBP组6例出现IVC,无RBP组13例,RBP组IVC比例高于无RBP组(χ²=5.400,P=0.020);RBP组6例出现TLF损伤,无RBP组11例,RBP组TLF损伤比例高于无RBP组(χ²=7.011,P=0.008);RBP组椎旁肌脂肪变性3-4级为18例,无RBP组为41例,RBP组高于无RBP组(χ²=21.618,P<0.001),RBP组骨水泥弥散形态为团块型比例高于无RBP组(χ²=6.836,P=0.009)。多因素Logistic回归分析结果显示,存在IVC (χ²=4.974,P=0.025)、合并TLF损伤(χ²=5.231,P=0.023)、椎旁肌脂肪变性Goutallier分级>2级(χ²=15.124,P<0.001)以及骨水泥弥散形态为团块型(χ²=4.168,P=0.038)为PVP术后发生RBP的独立危险因素。模型ROC曲线得出原始模型AUC为0.816[OR=2.862,95% CI (0.776,0.894),P<0.001],通过200个自举样本进行模型内部验证,得出C指数值为0.936,校准曲线显示预测概率曲线与实际概率曲线接近,H-L拟合优度检验结果为χ²=5.796,P=0.670,DCA分析结果显示当阈值在6%~71%时决策曲线位于None线与All线上方。结论: 存在IVC、合并TLF损伤、椎旁肌脂肪变性Goutallier分级>2级以及骨水泥弥散形态为团块型为PVP术后发生RBP的独立危险因素,本研究所构建的PVP术后发生RBP的风险预测模型具有较好的预测性能和较好的临床实用性。     

保守疗法和椎体成形术治疗骨质疏松性椎体压缩骨折的系统评价

[目的]评价保守疗法和经皮椎体成形术治疗骨质疏松性椎体压缩骨折的疗效.[方法]全面收集保守疗法和PVP治疗骨质疏松性椎体压缩骨折的随机对照研究,在严格文献质量评价的基础上,进行系统评价.[结果]共纳入4篇RCT,共计285例患者.在减轻疼痛方面,经皮椎体成形术组在术后ld、2周均优于保守组.在再骨折和邻椎骨折方面,尚不能得出确切结论.[结论]经皮椎体成形术和保守疗法均是治疗骨质疏松性椎体压缩骨折的有效治疗方法,近期疼痛缓解情况经皮椎体成形术组优于保守组,再骨折的评价缺乏足够的证据,尚需更多设计严谨的临床试验证实.     

Anterior decompression and strut graft versus posterior decompression and pedicle screw fixation with vertebroplasty for osteoporotic thoracolumbar vertebral collapse with neurologic deficits

Background contextWith the increase of the elderly population, osteoporotic vertebral fractures have been frequently reported. Surgical intervention is usually recommended in osteoporotic vertebral collapse with neurologic deficits. However, very few reports on surgical interventions exist.PurposeTo compare surgical results of anterior and posterior procedures for treating osteoporotic thoracolumbar vertebral collapse with sustained neurologic deficits.Study designRetrospective comparative study.Patient sampleFifty patients who sustained osteoporotic thoracolumbar vertebral collapse with neurologic deficits were treated either by anterior decompression and strut graft (n=32) or by posterior decompression and pedicle screw fixation with vertebroplasty (n=18).Outcome measuresIncidence of complications, sagittal Cobb angle, spinal canal encroachment, and Japanese Orthopedic Association score.MethodsThe authors retrospectively reviewed the results of a consecutive series of patients undergoing anterior decompression and strut graft or posterior decompression and pedicle screw fixation with vertebroplasty for osteoporotic thoracolumbar vertebral collapse with neurologic deficits. Operative notes, clinical charts, and radiographs were analyzed.ResultsOperative time was similar between the groups, but intraoperative blood loss was significantly lower in the posterior group. All patients showed neurologic recovery. No significant difference was observed in the neurologic improvement, kyphosis correction angle, and loss of correction. Perioperative respiratory complications were found in 11 patients (34%) in the anterior group. In the anterior group, early posterior reinforcement was required in patients with very low bone density below 0.60 g/cm² and/or in those with three segments of instrumentation for two vertebral collapses. Posterior group patients did not undergo additional surgery.ConclusionsAnterior reconstruction for osteoporotic vertebral collapse is significant because anterior elements, particularly those at the thoracolumbar junction, play a major role in load bearing. However, difficulties arise when anterior reconstruction is performed in cases with very low bone density and in those with multiple vertebral collapse.     

骨质疏松性椎体压缩性骨折经皮椎体成形术后继发椎体再骨折的相关因素分析

目的 探讨骨质疏松性椎体压缩性骨折（OVCF）采用经皮椎体成形术（PVP）治疗后继发椎体再骨折的相关因素,为预防术后椎体再骨折提供参考依据和理论指导。方法 回顾性分析2019年3月—2020年3月在内蒙古自治区人民医院采用PVP治疗的178例OVCF患者临床资料。收集所有患者性别、年龄、体质量指数（BMI）、骨密度T值、住院时间、手术穿刺路径、骨水泥注入量、骨水泥弥散情况、骨水泥渗漏情况、椎体高度恢复率、术后即刻Cobb角及术后支具佩戴时间,并采用多因素logistic回归分析评价这些因素与术后椎体再骨折的相关性。结果 共29例患者PVP术后发生继发椎体再骨折,再骨折发生率为16.3%(29/178)。再骨折患者与无再骨折患者在年龄、骨水泥注入量、骨水泥渗漏情况、椎体高度恢复率、术后即刻Cobb角及术后支具佩戴时间6个方面差异有统计学意义（P <0.05）。将上述6个因素纳入多因素logistic回归分析,结果显示,骨水泥注入量≥4 mL、骨水泥渗漏、椎体高度恢复率≥10%及术后支具佩戴时间<2个月是术后椎体发生再骨折的危险因素。结论 OVCF患者PVP术后邻近椎体再骨折与...     

经皮椎体成形术和经皮椎体后凸成形术治疗不同压缩程度骨质疏松性椎体骨折疗效的比较

目的 比较经皮椎体成形术(PVP)和经皮椎体后凸成形术(PKP)治疗骨质疏松性椎体压缩性骨折(OVCF)的疗效及不同压缩程度下对脊柱楔形角和后凸角的纠正,为不同压缩程度下最佳术式的选择提供依据. 方法 选取2004年4月至2010年1月治疗的123例OVCF患者,分别采用PVP治疗(60例)和PKP治疗(63例),两组患者基线学数据比较差异均无统计学意义(P＞0.05),具有可比性.根据Genant等的方法,将所有患者压缩椎体分为轻度(A级)、中度(B级)和重度(C级)压缩,评价术前、术后视觉模拟评分(VAS)、楔形角、后凸角的改善情况及两种术式的效果.比较不同压缩等级下两种术式间VAS评分、楔形角、后凸角的改善.结果 所有患者术后VAS评分均明显改善,楔形角、后凸角均矫正,差异均有统计学意义(P＜0.05);两种术式对VAS评分改善比较差异无统计学意义(P＞0.05);PKP对楔形角和后凸角的矫正效果优于PVP,差异均有统计学差异(P＜0.05).不同压缩程度下的患者两种术式间的VAS评分改善比较差异均无统计学意义(P＞0.05);A、B级患者两种术式楔形角和后凸角的矫正比较差异均无统计学意义(P＞0.05);但C级患者中PKP组楔形角和后凸角的矫正均优于PVP组,差异有统计学意义(P＜0.05). 结论 PKP和PVP都能明显缓解OVCFs患者的疼痛,纠正楔形角和后凸角,恢复脊柱全长的生理曲度.但PKP能更好地纠正楔形角和后凸角,尤其是在重度压缩骨折情况下.