CT或C型臂引导经皮椎体成形术

目的探讨CT或C型臂引导下经皮椎体成形术治疗骨质疏松椎体压缩性骨折的早期临床效果及骨水泥渗漏的预防。方法2001年8月～2006年4月，55例（59个椎体）骨质疏松椎体压缩性骨折患者在CT或C型臂引导下，经皮椎弓根向椎体内穿针并注入聚甲基丙烯酸甲酯（PMMA）。术后CT和X线片观察骨水泥的分布和渗漏情况，并进行临床疗效评价，观察有无并发症发生。结果患者术后12h～3d疼痛明显减轻或消失。1例患者造影剂渗漏广泛而放弃注射PMMA，其余54例患者平均每个椎体注入骨水泥4．5mL，影像学检查骨水泥充满良好，骨折复位满意。55例骨质疏松症患者中39例完全缓解，12例部分缓解，4例轻度缓解。2个椎体出现骨水泥渗漏，1个椎体有椎管内少量渗漏，1个椎体出现椎旁渗漏，均未引起临床症状。对48例患者进行8～60个月（平均33.1个月）随访，治疗部位疼痛无明显加重，椎体形态无改变。结论经皮椎体成形术是治疗骨质疏松椎体压缩性骨折安全有效的微创技术。限量骨水泥注射法是预防骨水泥渗漏的关键。     

过伸体位复位在PVP治疗椎体压缩性骨折中的应用

目的探讨利用螺旋推进器在过伸体位手法复位后连续高压注射骨水泥行经皮椎体成形术治疗老年脊柱椎体压缩性骨折的临床疗效。方法本组选新鲜骨质疏松性椎体压缩性骨折132例患者共196个椎体,实验组在过伸体位手法复位后,应用螺旋推进器产生高压向伤椎椎体内注入骨水泥,行经皮椎体成形术,对照组则按照一般的PVP手术方式进行,未实行过伸体位复位。根据术前和术后侧位X线片测量椎体高度、后凸畸形角度,并计算椎体高度恢复率和后凸畸形矫正率。根据手术前后功能学改变进行视觉模拟疼痛（visual analogue scale,VAS）与Oswesty功能评分。结果 132例手术均顺利完成,对照组50例72椎体术前术后椎体前缘高度恢复率、中线高度恢复率、后缘高度恢复率、椎体后凸畸形矫正率均无显著差异。实验组82例124椎体术前术后椎体前缘高度恢复率、中线高度恢复率、椎体后凸畸形矫正率存在显著差异（P〈0.05）,VAS评分、Oswesty功能评分对照组与实验组手术前后比较均有显著差异（P〈0.05）。术后37例出现骨水泥渗漏者,其中3例出现向椎管渗漏压迫脊髓、神经根（对照组1例,实验组2例）。术后随访两组椎体高度无再丢失。结论过伸体位复位后,采用螺旋推进器连续高压注射骨水泥行经皮椎体成形术,可有效恢复椎体高度和矫正后凸畸形,安全可行,实用性强。     

椎体成形术中椎管内骨水泥渗漏对临床疗效的影响

目的探讨椎体成形术中椎管内骨水泥渗漏对临床疗效的影响。方法回顾性分析2009年10月至2011年12月柳州市工人医院收治的260例（337椎）骨质疏松性压缩骨折（OVCF）患者的临床资料,采用经皮穿刺椎体成形术（PVP,238例）或经皮穿刺球囊扩张椎体成形术（PKP,22例）治疗。术后通过X线片和CT检查评估骨水泥渗漏情况,对符合评价标准椎管内骨水泥渗漏占椎管面积百分比等指标进行计算。同时采用视觉模拟评分法（VAS）和Oswestry功能障碍指数（ODI）进行疗效评估,并观察脊髓神经损伤情况。结果 X线片和CT检查显示椎管内渗漏分别为48例（56椎）和84例（93椎）。符合评价标准的椎管内骨水泥渗漏者37例（44椎）,其中T1～T10段和T11～L1段骨水泥渗漏占椎管面积平均百分比分别为（30.8±1.5）%和（28.2±1.1）%。260例（337椎）患者手术前后VAS和ODI比较,差异有统计学意义（P〈0.05）;37例（44椎）椎管内骨水泥渗漏者术后VAS、ODI与其他患者比较,差异无统计学意义（P〉0.05）,其中3例（5椎）出现神经根性灼痛、麻木症状,其他均表现为阴性症状。结论椎体成形术中椎管内骨水泥渗漏率较高,但对手术疗效并无明显影响。加强监控、严格掌握手术适应证及良好的手术技巧可减少椎管内骨水泥渗漏的发生。     

弹性弧形骨钻对小牛椎体骨质疏松模型PVP术中骨 水泥分布的影响

目的探讨自制弹性弧形骨钻在小牛椎体骨质疏松模型上行PVP术的可行性,并观察其对骨水泥分布的影响。方法采用乙二胺四乙酸二钠盐(EDTA-Na2)浸泡法制备小牛体外骨质疏松椎体,将40个骨质疏松椎体随机分为A、B两组,每组各20个椎体行椎体成形术,A组行常规直钻穿刺,B组采用自制弹性弧形骨钻穿刺,弧形方向朝向穿刺对侧,深度达到椎体中前三分之一终止,对两组穿刺骨钻及骨水泥是否达到或越过椎体矢状中线进行统计分析。结果 EDTA-Na2浸泡法脱钙9 d时成功制备出体外骨质疏松椎体,直钻穿刺组钻头达到或越过椎体矢状中线有7个椎体,骨水泥分布达到或越过椎体矢状中线11个;弹性弧形骨钻组穿刺钻头达到或越过椎体矢状中线有18个椎体,骨水泥分布达到或越过椎体矢状中线19个,两组骨钻穿刺效果及骨水泥分布上的差异有统计学意义(P0.05)。A组9个椎体发生骨水泥椎管内渗漏,B组4个椎体发生骨水泥椎管内渗漏,两组间在骨水泥渗漏上无显著性差异(P0.05)。结论采用自制弹性弧形骨钻在小牛骨质疏松模型上可以顺利实施PVP术,且能实现单侧椎弓根穿刺,骨水泥双侧分布的效果。     

单侧与双侧入路椎体后凸成形术治疗老年骨质疏松性椎体压缩骨折的临床研究

目的：探讨经单侧与双侧穿刺椎体后凸成形术治疗骨质疏松性椎体压缩性骨折临床疗效。方法选取我院2007-01-2010-12收治的骨质疏松性椎体压缩性骨折患者80例,随机分为单侧穿刺组与双侧穿刺组,观察两组手术时间、X线机曝光次数、出血量、骨水泥量、手术前后VAS评分变化、椎体平均高度、局部Cobb角改善、骨水泥渗漏及椎体再骨折发生情况。结果单侧组在平均手术时间、平均骨水泥注入量、平均出血量及X线曝光次数上均较双侧组少。两组术后及末次随访时VAS评分均较术前明显降低,术后两组椎体平均高度及局部Cobb角较术前均有显著恢复,组间比较无显著性差异;两组在骨水泥渗漏及邻近椎体再骨折的发生率比较无显著性差异。结论经单侧椎弓根途径穿刺骨水泥过椎体中线注射治疗骨质疏松性椎体压缩骨折可取得双侧穿刺同样满意的临床效果。     

经皮椎体成形术后椎管内骨水泥渗漏的回顾性研究

[目的]回顾性分析经皮椎体成形术后椎管内骨水泥渗漏与椎体骨折类型之间的关系,观察后路椎板减压骨水泥清除术后脊髓神经功能的恢复情况。〔方法」对2010年9月~2014年7月间发生的椎管内骨水泥渗漏患者共60例进行研究,其中有脊髓压迫症状32例,无症状28例。统计分析椎管内骨水泥渗漏与胸腰椎骨折类型之间的关系。对有脊髓压迫症状的患者,全部行后路椎板减压骨水泥清除术,术后定期随访(随访时间5~35个月,平均14个月)。采用ASIA 2000脊髓损伤神经功能评定标准,分析比较术前和末次随访时脊髓神经功能恢复情况。[结果]外伤性椎体骨折发生椎管内骨水泥渗漏率比骨质疏松骨折要高(P0.05),其他类型骨折骨水泥渗漏率之间比较差异均无统计学意义(P0.05)。影像学分析提示骨水泥主要通过椎体皮质破损渗漏入椎管,部分通过椎体后静脉丛渗漏入椎管。32例脊髓神经损伤患者行椎板减压骨水泥清除术后神经功能有恢复24例,无恢复8例,总体恢复率75%。[结论]外伤性椎体骨折行经皮椎体成形术发生椎管内骨水泥渗漏概率较高,术前评估椎体后壁的完整性,对于预防骨水泥渗漏有参考价值;对于有神经症状的椎管内骨水泥渗漏患者,后路椎板减压骨水泥清除术是一种有效的治疗方法。     

经皮椎体强化成形术在治疗中的应用

目的利用经皮穿刺椎体强化成形术治疗椎体肿瘤及骨质疏松性所致椎体压缩骨折引起的脊柱不稳及疼痛。方法在C臂X光机监视下定位，采取空芯穿刺针导入管注入调配好比例的骨水泥强化椎体。结果1例C3椎体转移瘤、病理骨折、畸形、颈椎活动受限者，术后第1天颈痛消失，25例39个椎体骨质疏松性胸腰椎压缩骨折，22例注射后疼痛即刻缓解，1～6个月后复查无疼痛，1例出现椎管内渗漏致截瘫。结论经皮穿刺椎体强化成形术是治疗椎体肿瘤、骨质疏松性椎体压缩骨折引起脊柱不稳缓解疼痛症状的有效方法之一，但骨水泥向椎管内外渗漏是其严重并发症，值得进一步探索。     

经皮椎体强化成形术在椎体病理骨折治疗中的应用

目的利用经皮穿刺椎体强化成形术治疗椎体肿瘤及骨质疏松性所致椎体压缩骨折引起的脊柱不稳及疼痛.方法在C臂X光机监视下定位,采取空芯穿刺针导入管注入调配好比例的骨水泥强化椎体.结果 1 例C3椎体转移瘤、病理骨折、畸形、颈椎活动受限者,术后第1天颈痛消失,25 例39个椎体骨质疏松性胸腰椎压缩骨折,22 例注射后疼痛即刻缓解,1～6个月后复查无疼痛,1 例出现椎管内渗漏致截瘫.结论经皮穿刺椎体强化成形术是治疗椎体肿瘤、骨质疏松性椎体压缩骨折引起脊柱不稳缓解疼痛症状的有效方法之一,但骨水泥向椎管内外渗漏是其严重并发症,值得进一步探索.     

经皮椎体成形术治疗老年骨质疏松性胸腰椎压缩性骨折术中骨水泥渗漏的相关因素

目的分析经皮椎体成形术(PVP)治疗老年骨质疏松性椎体压缩性骨折(OVCF)术中骨水泥渗漏的相关危险因素。方法收集2015年1月—2017年12月采用PVP治疗的297例老年OVCF患者资料。采用logistic回归法分析年龄、性别、骨折部位、椎体压缩程度、椎体终板/后壁完整性、骨折节段数、骨水泥注射量与骨水泥渗漏(椎间盘、软组织、血管内、椎管内及混合渗漏)的关系。结果术中共166例发生骨水泥渗漏,渗漏率55.9%。二元logistic回归分析示骨水泥剂量高是骨水泥渗漏的唯一危险因素。多元logistic回归分析示椎体压缩程度高和骨折节段数多是椎间盘渗漏的危险因素;骨水泥注射量大和椎体压缩程度高是软组织渗漏的危险因素;女性和年龄较低是血管内渗漏的危险因素;骨水泥注射量大和椎体终板/后壁破裂是椎管内渗漏的危险因素。结论不同的危险因素导致PVP术中不同的渗漏类型。明确不同危险因素与各渗漏类型间的相互关系有利于防止骨水泥渗漏的发生。     

分次灌注增强椎体后壁破裂骨质疏松性椎体压缩骨折

目的探寻预防椎管内骨水泥渗漏的有效方法。方法自2008年1月～2009年12月应用PVP治疗椎体后壁破裂骨质疏松性椎体压缩骨折患者30例(男8例,女22例),骨折部位T10-L5,其中单椎体骨折24例,两椎体骨折6例,所有病例随机分为A、B两组。A组15例采用黏稠度不同的骨水泥分次灌注,B组15例为持续灌注骨水泥。结果 A组均未出现骨水泥向椎管内渗漏的情况。2例出现穿刺针道渗漏,未引起临床症状。术后随访6月～1年,患者腰背痛消失或明显好转,均无脊髓神经损伤表现;B组均出现骨水泥少量向椎管内渗漏的情况。术后随访6月～1年,患者腰背痛有好转,2例出现神经根损伤表现。结论采用黏稠度不同的骨水泥分次灌注法可明显降低骨水泥的渗透率,提高手术安全性。     

Kyphoplastie und Vertebroplastie bei Frakturen im hohen Lebensalter

Kyphoplasty and vertebroplasty are two minimally invasive percutaneous techniques used for treatment of osteoporotic vertebral compression fractures in the thoracic and lumbar spine. The injection of polymethylmetacrylate (PMMA) is often a final attempt at therapeutic treatment of complications due to such fractures. Vertebroplasty involves injection of cement via one or both pedicles under high pressure, thus filling and stabilizing the vertebra without reduction of fracture. Extravertebral cement leakage is a common complication: an intact posterior wall normally prevents cement leakage into the epidural space. Kyphoplasty involves transpedicular inflation of balloon tamps, thus creating a cavity which is then filled with PMMA under low pressure. Restoration of vertebral height is possible and the potential for extravertebral cement leakage lessened.     

温差注射法在椎体成形术中预防骨水泥外渗的临床研究

目的:观察温差注射法在椎体成形术(PVP)中预防和减少骨水泥的外渗效果。方法 :对2014年7月至2018年7月收治的42例(48个椎体)骨质疏松性椎体压缩骨折(OVCFs)患者的临床资料进行回顾性分析,男19例,女23例;年龄为62～80岁,平均72岁。椎体骨折节段:T_8-L5,其中腰椎30个,胸椎18个,病程3 d～2个月。其中20例(20个椎体)采用单纯椎体成形术治疗(A组),22例(28个椎体)采用温差注射法治疗(B组)。比较两组患者的手术时间、骨水泥注射量、术后3 d的VAS评分、骨水泥渗漏率及再骨折率。结果:B组患者手术时间、骨水泥注射量、术后3 d VAS评分别为(40.05±7.78) min,(3.93±0.19) ml,(3.55±0.74)分;A组患者分别为(38.90±6.81) min,(4.03±0.24) ml,(4.05±1.00)分,两组比较差异无统计学意义(P0.05)。B组患者渗漏率为9.1%(2/22),比A组患者的40.0%(8/20)更低(P0.05);B组患者再骨折率为9.1%(2/22),A组患者为15.0%(3/20),两组比较差异无统计学意义(P0.05)。结论:温差注射法椎体成形术能有效降低经皮椎体成形术中骨水泥外渗率。     

椎弓根钉固定及高压分步注射椎体成形术治疗老年胸腰椎爆裂骨折并神经损伤

目的探讨椎弓根螺钉内固定结合高压注射椎体成形术治疗老年胸腰椎爆裂性骨折并神经损伤的疗效。方法回顾分析椎弓根螺钉内固定结合经椎弓根高压分步注射骨水泥治疗老年胸腰椎爆裂性骨折并神经损伤患者22例,随访平均19月。术后观察骨折椎体前缘压缩率、椎管侵占率、Cobb角、神经功能改善情况及并发症。结果椎体前缘压缩率由术前的58.7%恢复为术后7.0%,后凸Cobb角由术前平均24.0°矫正至6.6°,椎管侵占率由术前52.6%恢复为术后11.8%,术后与术前比较差异均有统计学意义(P0.01)。VAS术前平均8.7分,术后2.2分。脊髓功能恢复按Frankel分级,除1例A级病例术后截瘫症状无明显恢复外,其他病例均达到1级或1级以上的恢复。有2椎体发生椎体外骨水泥渗漏,无肺栓塞、感染和神经损伤等并发症发生。未发现内固定松动、断裂现象。结论椎弓根螺钉内固定结合椎体成形术有利于同时解决胸腰椎骨折对神经的压迫、脊柱的不稳定及骨质疏松椎体压缩骨折造成的顽固性胸腰背疼痛等问题。高压分步注射可降低骨水泥渗漏的风险。     

弹性弧形骨钻用于椎体成形术的实验研究

目的观察自制弹性弧形骨钻在体外骨质疏松椎体成形术中的手术效果,从而探讨其在椎体成形术中的应用价值。方法采用乙二胺四乙酸二钠盐(EDTA-Na2)浸泡法制备小牛体外骨质疏松椎体,将40个骨质疏松椎体随机分为A、B两组,每组各20个椎体行椎体成形术,A组行常规直钻穿刺,B组采用自制弹性弧形骨钻穿刺,弧形方向朝向穿刺对侧,深度达到椎体中前1/3终止,对两组穿刺骨钻及骨水泥是否达到或越过椎体矢状中线进行统计分析。结果 EDTA-Na2浸泡法脱钙9 d时成功制备出体外骨质疏松椎体,直钻穿刺组钻头达到或越过椎体矢状中线有7个椎体,骨水泥分布达到或越过椎体矢状中线11个;弹性弧形骨钻组穿刺钻头达到或越过椎体矢状中线有18个椎体,骨水泥分布达到或越过椎体矢状中线19个,两组骨钻穿刺效果及骨水泥分布上的差异有统计学意义(P0.05)。A组9个椎体发生骨水泥椎管内渗漏,B组4个椎体发生骨水泥椎管内渗漏,两组间在骨水泥渗漏上差异无统计学意义(P0.05)。结论自制弹性弧形骨钻通过一侧椎弓根穿刺,可以建立一个达到或越过椎体矢状中线的骨性通道,引导骨水泥向穿刺对侧分布,避免了双侧椎弓根穿刺的弊端,其实验效果优于直骨钻。     

The effect of pulsed jet lavage in vertebroplasty on injection forces of PMMA bone cement: an animal study

Percutaneous vertebroplasty, comprising of the injection of polymethylmethacrylate (PMMA) into vertebral bodies, is an efficient procedure to stabilize osteoporotic compression fractures as well as other weakening lesions. Besides fat embolism, cement leakage is considered to be one of the major and most severe complications during percutaneous vertebroplasty. The viscosity of the PMMA during injection plays a key role in this context. It was shown in vitro that the best way to lower the risk of cement leakage is to inject the cement at higher viscosity, which is requires high injection forces. Injection forces can be reduced by applying a newly developed lavage technique as it was shown in vitro using human cadaver vertebrae. The purpose of this study was to prove the in vitro results in an in vivo model. The investigation was incorporated in an animal study that was performed to evaluate the cardiovascular reaction on cement augmentation using the lavage technique. Injection forces were measured with instrumentation for 1 cc syringes, additionally acquiring plunger displacement. Averaged injection forces measured, ranged from 12 to 130 N and from 28 to 140 N for the lavage group and the control group, respectively. Normalized injection forces (by viscosity and injection speed) showed a trend to be lower for the lavage group in comparison to the control group (P = 0.073). In conclusion, the clinical relevance on the investigated lavage technique concerning lowering injection forces was only shown by trend in the performed animal study. However, it might well be that the effect is more pronounced for osteoporotic vertebral bodies.     

Biomechanical efficacy of unipedicular versus bipedicular vertebroplasty for the management of osteoporotic compression fractures.

STUDY DESIGN: Cadaveric study on the biomechanics of osteoporotic vertebral bodies augmented and not augmented with polymethylmethacrylate cement. OBJECTIVES: To determine the strength and stiffness of osteoporotic vertebral bodies subjected to compression fractures and 1) not augmented, 2) augmented with unipedicular injection of cement, or 3) augmented with bipedicular injection of cement. SUMMARY OF BACKGROUND DATA: Percutaneous vertebroplasty is a relatively new method of managing osteoporotic compression fractures, but it lacks biomechanical confirmation. METHODS: Fresh vertebral bodies (L2-L5) were harvested from 10 osteoporotic spines (T scores range, -3.7 to -8.8) and compressed in a materials testing machine to determine intact strength and stiffness. They were then repaired using a transpedicular injection of cement (unipedicular or bipedicular), or they were unaugmented and recrushed. RESULTS: Results suggest that unipedicular and bipedicular cement injection restored vertebral body stiffness to intact values, whereas unaugmented vertebral bodies were significantly more compliant than either injected or intact vertebral bodies. Vertebral bodies injected with cement (both bipedicular and unipedicular) were significantly stronger than the intact vertebral bodies, whereas unaugmented vertebral bodies were significantly weaker. There was no significant difference in loss in vertebral body height between any of the augmentation groups. CONCLUSIONS: This study suggests that unipedicular and bipedicular injection of cement, as used during percutaneous vertebroplasty, increases acute strength and restores stiffness of vertebral bodies with compression fractures.     

Cardiovascular changes after PMMA vertebroplasty in sheep: the effect of bone marrow removal using pulsed jet-lavage

Clinically, the displacement of intravertebral fat into the circulation during vertebroplasty is reported to lead to problems in elderly patients and can represent a serious complication, especially when multiple levels have to be treated. An in vitro study has shown the feasibility of removing intravertebral fat by pulsed jet-lavage prior to vertebroplasty, potentially reducing the embolization of bone marrow fat from the vertebral bodies and alleviating the cardiovascular changes elicited by pulmonary fat embolism. In this in vivo study, percutaneous vertebroplasty using polymethylmethacrylate (PMMA) was performed in three lumbar vertebrae of 11 sheep. In six sheep (lavage group), pulsed jet-lavage was performed prior to injection of PMMA compared to the control group of five sheep receiving only PMMA vertebroplasty. Invasive recording of blood pressures was performed continuously until 60 min after the last injection. Cardiac output and arterial blood gas parameters were measured at selected time points. Post mortem, the injected cement volume was measured using CT and lung biopsies were processed for assessment of intravascular fat. Pulsed jet-lavage was feasible in the in vivo setting. In the control group, the injection of PMMA resulted in pulmonary fat embolism and a sudden and significant increase in mean pulmonary arterial pressure. Pulsed jet-lavage prevented any cardiovascular changes and significantly reduced the severity of bone marrow fat embolization. Even though significantly more cement had been injected into the lavaged vertebral bodies, significantly fewer intravascular fat emboli were identified in the lung tissue. Pulsed jet-lavage prevented the cardiovascular complications after PMMA vertebroplasty in sheep and alleviated the severity of pulmonary fat embolism.     

骨水泥量对椎体成形术疗效和渗漏并发症的影响

目的 探讨椎体成形术中注入的骨水泥量对疗效和渗漏的影响. 方法 对2006年7月至2011年5月广州医学院附属广州市第一人民医院脊柱外科收治的186例腰椎骨质疏松性压缩性骨折患者,行椎体成形术,注入聚甲基异丁烯酸( polymethyl methacrylate,PMMA)治疗,对VAS缓解程度和生活质量进行比较. 结果 术后出现骨水泥渗漏73例.出现渗漏患者注入骨水泥量为(4.05±0.76)ml;未出现渗漏患者注入骨水泥量为(3.03 ±0.82) ml,两者统计学上有显著性差异(P=0.000).注入骨水泥量＜3.5 ml者83例,≥3.5 ml者103例,两组术后VAS、疼痛缓解程度、生活质量,在统计学上均未见显著性差异(P＞0.05). 结论 椎体成形术中,注入骨水泥量对疗效影响不大;注入过多的骨水泥会导致渗漏增多.     

“天玑”骨科手术机器人辅助与徒手穿刺椎体成形术治疗上胸椎骨质疏松性椎体压缩骨折的疗效比较

目的比较"天玑"骨科手术机器人辅助和徒手穿刺椎体成形术治疗上胸椎骨质疏松性椎体压缩骨折(OVCF)的疗效。方法回顾性分析西安交通大学医学院附属红会医院脊柱外科自2018年1月至2019年3月使用"天玑"骨科手术机器人辅助下穿刺完成椎体成形术的19例上胸椎OVCF患者(20个椎体)资料(机器人组)和自2016年1月至2017年12月徒手穿刺完成椎体成形术的21例上胸椎OVCF患者(21个椎体)资料(徒手组)。机器人组男5例,女14例;年龄62~88岁;徒手组男6例,女15例;年龄64~83岁。通过比较两组患者的手术时间、骨水泥注入量、术后并发症(骨水泥渗漏、感染和血管栓塞),术后1 d、末次随访时的疼痛视觉模拟评分(VAS)、Oswestry功能障碍指数(ODI)、伤椎椎体前缘高度(AH)和伤椎后凸角(KA)观察疗效。结果机器人组和徒手组患者术前一般资料比较差异均无统计学意义(P>0.05),具有可比性。机器人组中19例患者(20个椎体)和徒手组中21例患者(21个椎体)均顺利完成单侧穿刺入路椎体成形术。40例患者术后随访6~12个月,平均8.3个月。机器人组的手术时间[(37.9±8.2)min]、骨水泥注入量[(2.3±0.9)mL]、骨水泥渗漏发生率(10.0%,2/20)均少于或低于徒手组[(46.2±9.4)min、(4.2±1.3)mL、42.9%(9/21)],差异有统计学意义(P<0.05)。两组患者均无感染和血管栓塞发生。术后1 d、末次随访时两组间VAS评分、ODI、AH和KA比较差异均无统计学意义(P>0.05)。结论相比于传统徒手穿刺椎体成形术,"天玑"骨科手术机器人辅助下穿刺完成椎体成形术治疗上胸椎(T1~T4)OVCF临床疗效满意,可减少手术时间和骨水泥注入量,并降低骨水泥渗漏的发生率。