自制器械辅助经皮伤椎固定与传统开放手术治疗胸腰椎骨折的疗效比较

目的 比较应用自行设计的微创器械经皮椎弓根螺钉短节段固定并伤椎置钉与传统后路切开短节段固定治疗胸腰椎骨折的疗效.方法 自2005年11月至2006年12月共收治38例胸腰椎骨折患者,男23例,女15例;年龄28～57岁,平均40岁.采用自行设计的微创器械行后路经皮椎弓根螺钉伤椎固定19例(经皮组),切开短节段椎弓根螺钉内固定治疗胸腰段骨折19例(切开组),比较两组患者的手术时间、出血量、伤椎前缘高度比值、后凸Cobb角的恢复情况、平均复位丢失率、并发症发生情况.结果 所有患者术后获13～28个月(平均24个月)随访.两组患者手术时间差异无统计学意义(P＞0.05).经皮组术中出血量比切开组少,差异有统计学意义(P＜0.05).经皮组伤椎前缘高度和后凸Cobb角的改善情况较切开组为优,伤椎前缘高度复位丢失率明显低于切开组,差异均有统计学意义(P＜0.05).术中两组均末出现医源性神经根损伤.结论 与传统后路切开短节段固定比较,应用自行设计的微创器械经皮椎弓根螺钉短节段固定并伤椎置钉具有损伤小、复位效果好、固定可靠等优点,疗效满意.

Abstract：

Objective To compare clinical effects of percutaneous short segmental pedicle screw fixation of the injured vertebra with self-designed device and conventional posterior open surgery for treatment of thoracolumbar fractures. Methods The clinical data of 38 patients with thoracolumbar fractures were included in this study.From November 2005 to December 2006,they were treated with the posterior percutaneous pedicle screw fixation of the injured vertebra with our self-designed minimally invasive device (19cases) and conventional posterior open pedicle screw fixation (19 cases),respectively.The 2 operative methods were compared in terms of operation time,bleeding volume,anterior height of the injured vertebra,Cobb angles of kyphosis,loss of correction and complications. Results All the patients were followed up from 13 to 28 months (mean,24 months) .The mean operation time for the minimally invasive group was 108.2 minutes which was not significantly different from that for the open group( 106.5 mintes) (P ＞0.05 ).The mean bleeding volume for the minimally invasive group was 110 mL which was significantly smaller than that for the open group (287 mL) ( P ＜ 0.05) .For the minimally invasive group,the mean anterior height of the compressed vertebral bodies was restored from 51.9％ to 95.4％ of the normal height,the mean Cobb angle was corrected from 15.8° to 5.7°,and the mean late loss of correction was 11.1％.All these indexes were significantly better than those for the open group (P＜0.05 ). Conclusion In treatment of thoracolumbar fractures,compared with conventional posterior open surgery,the posterior percutaneous pedicle screw fixation of the injured vertebra with our self-designed minimally invasive device can lead to less damage,more effective reduction,more reliable fixation and better outcomes.     

Pedicle screw fixation with translaminar facet joint screws for the treatment of thoracolumbar fracture

Objective:To evaluate the efficacy of Cotrel-Dubeusset (CD) instrumentation combined with translaminar facet joint screw ( TLS ) in the treatment of thoracolumbar fracture. Methods: A total of six L2-L4 spines were used to establish unstable fracture model with three-dimensional range of motion ( ROM ) of the spines measured. Fixation with CD and fixation with CD combined with translaminar facet joint screw were achieved to compare their stability. Thirty cases of thoracolumbar fracture, in whom the anterior edge of vertebral body was compressed to 59% and the posterior edge compressed to 88%, were treated by pedicle screw fixation combined with TLS. Among them, 19 received posterolateral or anterior-posterior bone grafting Results- There was significant difference in ROM between the two techniques except that in extension. In Group CD TLS, ROM was 5.38% lower, lateral bending 4.91% lower and axial rotation 11.85 % lower than those in Group CD respectively. In the clinical group, the average anterior edge restored to 97 % and posterior edge to 98%. The duration of follow-up was 5-24 months (mean, 10 months). The rate of correction loss on the anterior edge was 4.5%. Among the 19 cases of bone grafting, all of them achieved bony fusion (mean fusion time, 4.3 month) with a correction loss rate of 3.4%. Conclusions:In the treatment of thoracolumbar fracture, pedicle screw fixation combined with TLS can strengthen the stability of pedicle screws, especially antirotation stability and enhance fusion rate and reduce correction loss.     

闭合复位及撬拨法在椎体成形术中的应用

Objective To discuss the effects of closed reduction and levering manipulation on ver-tebral height restoration and kyphosis correction in vertebroplasty for osteoporotic compression fractures. Methods From January 2005 to June 2007, a total of 38 patients with osteoporotic vertebral compression fractures were treated with vertebroplasty. In closed reduction, a transfixion pin was used to lever the collapsed vertebral endplate through the pedicle. Before and after surgery, pain relief and functional improvement were evaluated using a visual analogue scale (VAS) and the Oswestry' s disability index (ODI). Changes in ver-tebral height and kyphotic angle and distribution of bone cement in the vertebral body were observed by Lee's method. Results All patients were followed up for 6 to 24 (average, 13.4) months. The average VSA scores were reduced from preoperative 8.6±2.3 to postoperative 3.8±2.6. The average ODI scores reduced from preoperative 64.8% to postoperative 48.7%. The differences were of statistical significance. The average increase in vertebral body height was 5.8 mm anteriorly, 6.6 mm centrally, and 1.0 mm posteriorly. The mean reduction in the kyphosis angle was 9.7 degrees. The percentages of restoration of vertebral height were 54.6% at the anterior border, 58.1% at the center, and 46.5% at the posterior border. The differences were of sta-tistical significance between preoperation and postoperation. Conclusion Closed reduction and levering manipulation is effective in vertebroplasty for osteoporotie vertebral compression fractures.     

不稳定Hangman骨折的手术治疗

Objective To investigate the clinical effects of pedicle screw fixation in the treatment of unstable Hangman fractures. Methods From October 2001 to April 2006, 15 patients with the unstable Hangman fractures were treated by the pedicle screw fixation after skull traction and reduction through posterior cervical approach. By Levine-Edwards classification, there were 3 cases of Ⅱ type, 4 cases of ⅡA type, 8 cases of Ⅲ type. Results The mean follow-up time was 17 (3 to 30) months. Six cases of Grade D by Frankel classification recovered to Grade E. Postoperative X-rays revealed bony union in all cases. No screw loosening or obvious functional limitation of the cervical vertebrae was found. In the cases of incomplete reduction, C2, 3 fixation was performed for patients without severe dislocation, and additional CA fixation with lateral mass screw was supplemented for patients with serere dislocation. Conclusion Posterior pedicle screw fixation of C2,3 or C2-4 is an effective and safe method for treating the unstable Hangman fractures.     

不稳定Hangman骨折的手术治疗

Objective To investigate the clinical effects of pedicle screw fixation in the treatment of unstable Hangman fractures. Methods From October 2001 to April 2006, 15 patients with the unstable Hangman fractures were treated by the pedicle screw fixation after skull traction and reduction through posterior cervical approach. By Levine-Edwards classification, there were 3 cases of Ⅱ type, 4 cases of ⅡA type, 8 cases of Ⅲ type. Results The mean follow-up time was 17 (3 to 30) months. Six cases of Grade D by Frankel classification recovered to Grade E. Postoperative X-rays revealed bony union in all cases. No screw loosening or obvious functional limitation of the cervical vertebrae was found. In the cases of incomplete reduction, C2, 3 fixation was performed for patients without severe dislocation, and additional CA fixation with lateral mass screw was supplemented for patients with serere dislocation. Conclusion Posterior pedicle screw fixation of C2,3 or C2-4 is an effective and safe method for treating the unstable Hangman fractures.     

不稳定Hangman骨折的手术治疗

Objective To investigate the clinical effects of pedicle screw fixation in the treatment of unstable Hangman fractures. Methods From October 2001 to April 2006, 15 patients with the unstable Hangman fractures were treated by the pedicle screw fixation after skull traction and reduction through posterior cervical approach. By Levine-Edwards classification, there were 3 cases of Ⅱ type, 4 cases of ⅡA type, 8 cases of Ⅲ type. Results The mean follow-up time was 17 (3 to 30) months. Six cases of Grade D by Frankel classification recovered to Grade E. Postoperative X-rays revealed bony union in all cases. No screw loosening or obvious functional limitation of the cervical vertebrae was found. In the cases of incomplete reduction, C2, 3 fixation was performed for patients without severe dislocation, and additional CA fixation with lateral mass screw was supplemented for patients with serere dislocation. Conclusion Posterior pedicle screw fixation of C2,3 or C2-4 is an effective and safe method for treating the unstable Hangman fractures.     

不稳定Hangman骨折的手术治疗

Objective To investigate the clinical effects of pedicle screw fixation in the treatment of unstable Hangman fractures. Methods From October 2001 to April 2006, 15 patients with the unstable Hangman fractures were treated by the pedicle screw fixation after skull traction and reduction through posterior cervical approach. By Levine-Edwards classification, there were 3 cases of Ⅱ type, 4 cases of ⅡA type, 8 cases of Ⅲ type. Results The mean follow-up time was 17 (3 to 30) months. Six cases of Grade D by Frankel classification recovered to Grade E. Postoperative X-rays revealed bony union in all cases. No screw loosening or obvious functional limitation of the cervical vertebrae was found. In the cases of incomplete reduction, C2, 3 fixation was performed for patients without severe dislocation, and additional CA fixation with lateral mass screw was supplemented for patients with serere dislocation. Conclusion Posterior pedicle screw fixation of C2,3 or C2-4 is an effective and safe method for treating the unstable Hangman fractures.     

不稳定Hangman骨折的手术治疗

Objective To investigate the clinical effects of pedicle screw fixation in the treatment of unstable Hangman fractures. Methods From October 2001 to April 2006, 15 patients with the unstable Hangman fractures were treated by the pedicle screw fixation after skull traction and reduction through posterior cervical approach. By Levine-Edwards classification, there were 3 cases of Ⅱ type, 4 cases of ⅡA type, 8 cases of Ⅲ type. Results The mean follow-up time was 17 (3 to 30) months. Six cases of Grade D by Frankel classification recovered to Grade E. Postoperative X-rays revealed bony union in all cases. No screw loosening or obvious functional limitation of the cervical vertebrae was found. In the cases of incomplete reduction, C2, 3 fixation was performed for patients without severe dislocation, and additional CA fixation with lateral mass screw was supplemented for patients with serere dislocation. Conclusion Posterior pedicle screw fixation of C2,3 or C2-4 is an effective and safe method for treating the unstable Hangman fractures.     

不稳定Hangman骨折的手术治疗

Objective To investigate the clinical effects of pedicle screw fixation in the treatment of unstable Hangman fractures. Methods From October 2001 to April 2006, 15 patients with the unstable Hangman fractures were treated by the pedicle screw fixation after skull traction and reduction through posterior cervical approach. By Levine-Edwards classification, there were 3 cases of Ⅱ type, 4 cases of ⅡA type, 8 cases of Ⅲ type. Results The mean follow-up time was 17 (3 to 30) months. Six cases of Grade D by Frankel classification recovered to Grade E. Postoperative X-rays revealed bony union in all cases. No screw loosening or obvious functional limitation of the cervical vertebrae was found. In the cases of incomplete reduction, C2, 3 fixation was performed for patients without severe dislocation, and additional CA fixation with lateral mass screw was supplemented for patients with serere dislocation. Conclusion Posterior pedicle screw fixation of C2,3 or C2-4 is an effective and safe method for treating the unstable Hangman fractures.     

不稳定Hangman骨折的手术治疗

Objective To investigate the clinical effects of pedicle screw fixation in the treatment of unstable Hangman fractures. Methods From October 2001 to April 2006, 15 patients with the unstable Hangman fractures were treated by the pedicle screw fixation after skull traction and reduction through posterior cervical approach. By Levine-Edwards classification, there were 3 cases of Ⅱ type, 4 cases of ⅡA type, 8 cases of Ⅲ type. Results The mean follow-up time was 17 (3 to 30) months. Six cases of Grade D by Frankel classification recovered to Grade E. Postoperative X-rays revealed bony union in all cases. No screw loosening or obvious functional limitation of the cervical vertebrae was found. In the cases of incomplete reduction, C2, 3 fixation was performed for patients without severe dislocation, and additional CA fixation with lateral mass screw was supplemented for patients with serere dislocation. Conclusion Posterior pedicle screw fixation of C2,3 or C2-4 is an effective and safe method for treating the unstable Hangman fractures.     

后路短节段椎弓根内固定治疗无神经损伤胸腰段爆裂骨折

目的　探讨后路短节段椎弓根内固定、经椎弓根椎体内植骨对无神经损伤胸腰段爆裂骨折的治疗效果。方法　对 2 2例无神经损伤的胸腰段爆裂骨折 ,采用短节段椎弓根内固定器复位固定、经椎弓根椎体内植骨 ,术前、后摄X线片、CT扫描。结果　术后伤椎高度明显恢复 ,后凸显著矫正 (P <0 0 5 ) ;术后 1年 ,后凸矫正度数大量丢失 (P <0 0 5 )。结论　后路短节段椎弓根内固定是治疗无神经损伤胸腰段爆裂骨折的一种理想方法 ,经椎弓根椎体内植骨不能阻止后凸矫正度数的丢失。     

Short-segment pedicle instrumentation of thoracolumbar burst fractures: does transpedicular intracorporeal grafting prevent early failure?

STUDY DESIGN: A prospective, randomized study comparing two treatment methods for thoracolumbar burst fractures: short-segment instrumentation with transpedicular grafting and the same procedure without transpedicular grafting. OBJECTIVE: To evaluate the efficacy of transpedicular grafting in preventing failure of short-segment fixation for the treatment of thoracolumbar burst fractures. SUMMARY OF BACKGROUND DATA: Short-segment pedicle instrumentation for thoracolumbar burst fractures is known to fail early because of the absence of anterior support. Additional transpedicular grafting has been offered as an alternative to prevent this failure. However, there is controversy about the results of transpedicular grafting. METHODS: Twenty patients with thoracolumbar burst fractures were included in the study. The inclusion criterion was the presence of fractures through the T11-L3 vertebrae without neurologic compromise. The patients were randomized by a simple method into two groups. Group 1 patients were treated using short-segment instrumentation with transpedicular grafting (TPG) (n = 10), and Group 2 patients were treated by short-segment fixation alone (NTPG) (n = 10). Clinical (Likert's questionnaire) and radiologic (sagittal index, percentage of anterior body height compression, and local kyphosis) outcomes were analyzed. RESULTS: The two groups were similar in age, follow-up period, and severity of the deformity and fracture. The postoperative and follow-up sagittal index, percentage of anterior body height compression, and average correction loss in local kyphosis in both groups were not significantly different. The failure rate, defined as an increase of 10 degrees or more in local kyphosis and/or screw breakage, was also not significantly different (TPG = 50%, NTPG = 40%, P = 0.99). CONCLUSIONS: Short-segment transpedicular instrumentation of thoracolumbar burst fractures is associated with a high rate of failure that cannot be decreased by additional transpedicular intracorporeal grafting.     

Transpedicular hydroxyapatite grafting with indirect reduction for thoracolumbar burst fractures with neurological deficit: A prospective study

Background:

The major problem after posterior correction and instrumentation in the treatment of thoracolumbar burst fractures is failure to support the anterior spinal column leading to loss of correction of kyphosis and hardware breakage. We conducted a prospective consecutive series to evaluate the outcome of the management of acute thoracolumbar burst fractures by transpedicular hydroxyapatite (HA) grafting following indirect reduction and pedicle screw fixation.

Materials and Methods:

Eighteen consecutive patients who had thoracolumbar burst fractures and associated incomplete neurological deficit were operatively treated within four days of admission. Following indirect reduction and pedicle screw fixation, transpedicular intracorporeal HA grafting to the fractured vertebrae was performed. Mean operative time was 125 min and mean blood loss was 150 ml. Their implants were removed within one year and were prospectively followed for at least two years.

Results:

The neurological function of all 18 patients improved by at least one ASIA grade, with nine (50%) patients demonstrating complete neurological recovery. Sagittal alignment was improved from a mean preoperative kyphosis of 17°to −2°(lordosis) by operation, but was found to have slightly deteriorated to 1° at final followup observation. The CT images demonstrated a mean spinal canal narrowing preoperatively, immediate postoperative and at final followup of 60%, 22% and 11%, respectively. There were no instances of hardware failure. No patient reported severe pain or needed daily dosages of analgesics at the final followup. The two-year postoperative MRI demonstrated an increase of one grade in disc degeneration (n = 17) at the disc above and in 11 patients below the fractured vertebra. At the final followup, flexion-extension radiographs revealed that a median range of motion was 4, 6 and 34 degrees at the cranial segment of the fractured vertebra, caudal segment and L1-S1, respectively. Bone formation by osteoconduction in HA granules was unclear, but final radiographs showed healed fractures.

Conclusions:

Posterior indirect reduction, transpedicular HA grafting and pedicle screw fixation could prevent the development of kyphosis and should lead to reliable neurological improvement in patients with incomplete neurological deficit. This technique does not require fusion to a segment, thereby preserves thoracolumbar motion.     

经皮椎弓根钉固定结合椎弓根植骨治疗胸腰椎骨折

目的探讨经皮椎弓根钉固定结合椎弓根植骨治疗胸腰椎骨折的疗效.方法回顾性分析2007年11月至2010年10月广东省深圳市平乐骨伤科医院收治的56例胸腰椎骨折患者的临床资料,均采用手法复位+经皮椎弓根钉固定+经伤椎椎弓根椎体内植骨.观察手术时间、术中出血量等围手术期指标及影像学指标.结果平均手术时间70 min、平均术中出血量60 mL、平均住院时间12 d、平均随访时间18个月.无脊髓、神经损伤及伤口感染;无内固定断裂、松动.术后即刻和终末随访时,患者伤椎前、后缘高度与正常椎体前、后缘高度的比值和Cobb’s角度均较术前改善(P<0.05).结论经皮椎弓根内固定结合椎弓根植骨技术治疗胸腰椎骨折损伤小、出血少,复位及内固定较满意.     

经皮椎弓根螺钉内固定结合椎体内植骨治疗胸腰椎骨折

 目的 探讨经皮椎弓根螺钉结合椎体内植骨治疗胸腰椎骨折的有效性。方法 采用 Sextant微创脊柱系统结合椎体内植骨技术治疗无神经功能损害、载荷分享评分逸7分的胸腰椎 A型骨折患者 20例, 并与同期行开放椎弓根螺钉内固定结合椎体内植骨治疗的 20例患者进行比较, 观察两组间的临床及影像学各项指标。结果 两组患者间性别、年龄、手术时机及载荷分享评分差异无统计学意义;但手术时间及出血量经皮组明显小于开放组(P约 0.05)。两组患者术后椎体前高、后凸角均显著恢复(P<0.05);术后 1年, 两组均见椎体前高和后凸角的显著丢失(P约 0.05);末次随访, 两组也均未见上述指标的进一步丢失。影像学指标与临床疗效两组间差异无统计学意义, 经皮组影像学指标恢复略差, 但临床疗效略优。结论 (1)经椎弓根椎体内植骨技术可应用于治疗载荷分享评分逸7分、无神经功能损害的胸腰椎爆裂骨折;(2)尽管经皮椎弓根螺钉内固定术的影像学各指标略差于开放组, 但由于其损伤小、出血少等优点, 仍获得较好的临床疗效。     

后路截骨联合钉道强化术治疗陈旧性骨质疏松性胸腰椎骨折并后凸畸形

目的 观察后路截骨联合钉道强化术治疗陈旧性骨质疏松性胸腰椎骨折并后凸畸形的临床效疗.方法 回顾性分析2008年1月～2010年6月采用此方法治疗的21例陈旧性骨质疏松性胸腰椎骨折并后凸畸形患者的临床资料,应用Oswestry功能障碍指数（Oswestry Disability Index,ODI）、疼痛视觉模拟量表（visual analogue scale,VAS）评分、美国脊髓损伤学会（American spinal injury association,ASIA）分级、影像学资料评估治疗效果,并记录手术并发症.结果 所有患者随访16～24个月,平均随访18.7月.术后3个月及末次随访时VAS评分、ODI评分、Cobb角与术前相比差异均有统计学意义（P＜0.05）.所有患者均未发生内固定相关并发症,没有出现有症状的骨水泥渗漏.末次随访时21例患者中ASIA分级C级恢复到D级1例、恢复到E级1例,由D级恢复到E级19例.结论 后路截骨联合钉道强化术治疗陈旧性骨质疏松性胸腰椎骨折并后凸畸形短期疗效满意.     

一期经后路三柱重建技术治疗胸腰椎爆裂骨折

目的 探讨严重胸腰椎爆裂骨折应用经后路进行脊柱三柱重建技术的临床效果.方法 对24例胸腰椎爆裂骨折采用经后路椎体次全切除、钛网置入及椎弓根钉重建术治疗.采用Frankel评定标准评定术后神经功能恢复情况.通过影像学变化评价后凸畸形矫正情况和椎管减压程度.结果 本组获随访13～46个月,平均24个月.椎体高度术后恢复至正常高度的97.8％.椎体后凸畸形角度矫正至术后3.5°.椎管容积矫正至术后椎管压迫完全解除.所有患者神经症状均有不同程度恢复.结论 经后路进行脊柱三柱重建技术,能有效矫正胸腰椎爆裂骨折的后凸畸形、解除椎管内压迫,达到术后即刻稳定,具有骨折复位满意,手术创伤较小及并发症少等特点.     

经伤椎椎弓根植骨和单纯后外侧植骨治疗胸腰椎骨折的疗效对比研究

目的 比较经伤椎椎弓根行椎体内植骨与单纯后外侧植骨两种方法 在椎弓根内固定系统复位固定治疗胸腰椎骨折疗效方面的差异.方法 对2004 年7 月至2007 年7 月沧州市中心医院采用椎弓根内固定系统复位固定治疗的186 例胸腰椎骨折患者的临床资料进行回顾性分析,其中经伤椎椎弓根椎体内植骨（经椎弓根植骨组）100 例,单纯后外侧植骨（单纯植骨组）86 例.对两组患者术后椎体压缩率、临床症状改善情况、并发症等方面进行比较.结果 两组患者均获随访.经椎弓根植骨组随访时间24～30 个月,平均随访时间28.4 个月;单纯植骨组随访时间24～38 个月,平均随访时间28.0 个月.经椎弓根植骨组患者术前、术后即刻和术后18 个月随访时的椎体压缩率分别为（38.2 ± 16.1）%、（2.4 ± 1.7）%和（3.7 ± 1.6）%,3 个时相点比较,差异有统计学意义（P ＜0.05）;单纯植骨组患者术前、术后即刻和术后18 个月随访时的椎体压缩率分别为（37.3 ± 13.8）%、（9.8± 5.3）%和（18.4 ± 8.7）%,3 个时相点比较,差异有统计学意义（P ＜0.05）.两组患者术前椎体压缩率比较,差异无统计学意义（P ＞0.05）;经椎弓根植骨组患者在术后即刻、术后随访18 个月时椎体压缩率均小于单纯植骨组（P ＜0.05）.两组术前有神经症状的患者术后腰部疼痛均明显缓解.术后18 个月随访时经椎弓根植骨组未出现断钉、断棒或松动;单纯植骨组有2 例出现内固定断裂.同期的CT扫描显示,经椎弓根植骨组椎体内植骨未吸收,填充确实,有4 例伤椎椎弓根破裂增粗,但未出现明显根性症状;单纯植骨组均可见椎体内空洞.结论 经伤椎椎弓根行椎体内植骨结合椎弓根内固定治疗胸腰椎骨折可即时恢复并长期维持椎体高度,降低内固定松动、断裂等并发症的发生率,临床效果理想.     

MAST Quadrant通道下椎旁肌间隙入路经伤椎椎弓根植骨治疗胸腰椎爆裂骨折

目的:观察在MAST Quadrant通道辅助下由椎旁肌间隙入路经伤椎椎弓根向椎体植骨短节段钉棒内固定术治疗胸腰椎爆裂骨折的临床疗效。方法:回顾性分析2009年6月至2012年9月资料完整并得到随访的胸或腰椎单节段爆裂骨折患者42例,男19例,女23例,年龄(55.2±11.9)岁,受伤时间(5.8±4.3)d。骨折节段:T103例,T116例,T1213例,L19例,L27例,L34例。骨折Denis分型:A型9例,B型21例,C型5例,D型5例,E型2例。所有患者采用MAST Quadrant通道辅助下由椎旁肌间隙入路经伤椎椎弓根向椎体植骨短节段钉棒内固定治疗,对患者手术时间、出血量、并发症进行观察,并对手术前后的伤椎椎体前缘高度、后凸Cobb角、VAS疼痛评分及下腰痛JOA评分进行比较。结果:术后1周椎体前缘高度、后凸Cobb角、VAS评分与术前比较差异均有统计学意义,与术后1年比较差异无统计学意义。术后1周伤椎椎体高度恢复率(95.23±3.18)%,术后1年(94.15±2.73)%,两者比较差异无统计学意义。术后1周JOA评分与术前比较差异有统计学意义,术后1年与术后1周比较差异也有统计学意义。结论:采用MAST Quadrant通道辅助下由椎旁肌间隙入路经伤椎椎弓根向椎体植骨短节段钉棒内固定术治疗胸腰椎爆裂骨折是一种安全、微创、疗效满意的治疗方法。     

经一侧伤椎短节段椎弓根固定联合椎体内植骨治疗胸腰段椎体骨折

目的 探讨经一侧伤椎短节段椎弓根固定联合椎体内植骨治疗胸腰段椎体骨折的可行性及疗效.方法 将自2005年1月～2009年5月行短节段椎弓根钉固定联合椎体内植骨治疗的102例胸腰段椎体骨折随机分为两组.A组行后路短节段椎弓根钉固定结合经一侧伤椎椎弓根固定联合椎体内植骨,B组行后路跨伤椎短节段椎弓根钉固定联合椎体内植骨.结果 本组获随访12～24个月.术后1周后凸Cobb角、椎体前缘高度两组间比较,差异无统计学意义(P＞0.05),末次随访时A组矫正角度、椎体前缘高度丢失量明显小于B组,差异有统计学意义(P＜.05).B组末次随访时腰背痛发病率以及内固定失败率明显高于A组,差异有统计学意义(P＜0.05).结论 经一侧伤椎短节段椎弓根固定联合椎体内植骨治疗胸腰段椎体骨折是一种有效的方法.