To evaluate the clinical outcome,effectiveness and safety of the surgical management of traumatic lumbar spondylolisthesis with transforaminal lumbar interbody fusion (TLIF) with short segmental instrumentation fixati...To evaluate the clinical outcome,effectiveness and safety of the surgical management of traumatic lumbar spondylolisthesis with transforaminal lumbar interbody fusion (TLIF) with short segmental instrumentation fixation.A retrospective review of a consecutive series of 24 patients with traumatic lumbar spondylolisthesis treated with TLIF procedure was carried out.Intraoperative spinal cord monitoring was used to confirm the peripheral neural function intact during the reduction of the spondylolisthesis.Preoperative clinical and radiographic evaluation of all cases were originally collected prospectively.Data regarding blood loss,operative time,duration of hospital stay,radiographic fusion,instrumentation failure and clinical result were collected and observed at regular follow-up periods.All patients were engaged in high-energy accidents in the lower back and 16 patients had concomitant injuries.The mean operative time was 124 min,mean blood loss was 350 mL,and mean hospital stay was 6.5 days.There were no complications such as incision infection,cerebrospinal fluide (CSF) leakage and nerve root injury and so on.All patients demonstrated a solid lumbar interbody fusion within 4 months,and no evidence of spondylolisthesis correction loss,instrumentation failure and loosing.They all were completely asymptomatic,with normal neurologic findings,and had resumed their previous level of physical activities on the final follow-up.Meticulous clinical examination and careful imaging assessment could assist an early diagonosis in cases of traumatic lumbar spondylolisthesis.Performing open reduction and the TLIF procedure as soon as possible could restore segmental stability and painless function.The TLIF procedure was a safe,effective technique to treat traumatic lumbar spondylolisthesis.展开更多
文摘目的比较经单侧腰椎间孔椎体间融合(transforaminal lumbar interbody fusion,TLIF)中不同轴向植入角度椎弓根螺钉和不同放置位置融合器的生物力学特性。方法建立正常L3~5有限元模型,在验证其有效性基础上,在L4~5节段模拟后路双侧TLIF和4种不同组合类型椎弓根螺钉植入和融合器放置的单侧TLIF有限元重构模型,即:小角度植入椎弓根螺钉+对侧放置融合器(模型A)、小角度植入椎弓根螺钉+同侧放置融合器(模型B)、大角度植入椎弓根螺钉+同侧放置融合器(模型C)、大角度植入椎弓根螺钉+对侧放置融合器(模型D),分别比较4种重构模型在各种生理应力下的活动范围(range of the motion,ROM)以及螺钉、融合器与L4下终板界面的最大Von Mises应力差异。结果 4种单侧TLIF重构模型在融合节段(L4~5)ROM均较正常模型显著下降,但仍高于双侧TLIF重构模型。4种单侧TLIF重构模型稳定性比较,模型C下降最多,其在屈伸、侧屈和扭转应力下ROM分别减少约为正常模型的50.7%、89.9%和90.3%。螺钉和融合器与L4下终板界面最大Von Mises应力比较,相对于其他3组模型,模型C除了在同侧侧屈和扭转外的大部分应力下承受较小的应力。结论在单侧TLIF重构模型中选择大角度植入椎弓根螺钉和同侧放置融合器能够获得最佳的生物力学稳定性,通过缩小与双侧TLIF模型稳定性差异以减少断钉或融合器下沉的风险,值得临床推广运用。
文摘To evaluate the clinical outcome,effectiveness and safety of the surgical management of traumatic lumbar spondylolisthesis with transforaminal lumbar interbody fusion (TLIF) with short segmental instrumentation fixation.A retrospective review of a consecutive series of 24 patients with traumatic lumbar spondylolisthesis treated with TLIF procedure was carried out.Intraoperative spinal cord monitoring was used to confirm the peripheral neural function intact during the reduction of the spondylolisthesis.Preoperative clinical and radiographic evaluation of all cases were originally collected prospectively.Data regarding blood loss,operative time,duration of hospital stay,radiographic fusion,instrumentation failure and clinical result were collected and observed at regular follow-up periods.All patients were engaged in high-energy accidents in the lower back and 16 patients had concomitant injuries.The mean operative time was 124 min,mean blood loss was 350 mL,and mean hospital stay was 6.5 days.There were no complications such as incision infection,cerebrospinal fluide (CSF) leakage and nerve root injury and so on.All patients demonstrated a solid lumbar interbody fusion within 4 months,and no evidence of spondylolisthesis correction loss,instrumentation failure and loosing.They all were completely asymptomatic,with normal neurologic findings,and had resumed their previous level of physical activities on the final follow-up.Meticulous clinical examination and careful imaging assessment could assist an early diagonosis in cases of traumatic lumbar spondylolisthesis.Performing open reduction and the TLIF procedure as soon as possible could restore segmental stability and painless function.The TLIF procedure was a safe,effective technique to treat traumatic lumbar spondylolisthesis.
文摘目的:比较后入路腰椎椎体间融合术(posterior lumbar interbody fusion,PLIF)和经皮内镜下经椎间孔腰椎椎体间融合术(percutaneous endoscopic transforaminal lumbar interbody fusion,PE-TLIF)治疗单节段腰椎管狭窄症的临床疗效及其对椎旁肌的影响。方法:本前瞻性研究纳入本院2019年1月~2022年1月收治的52例L4/5单节段腰椎管狭窄症患者。其中,PLIF组22例,女性10例,男性12例,年龄60.2±10.3岁;PE-TLIF组30例,女性14例,男性16例,年龄60.4±12.3岁。对比两组手术时间、术中出血量、术后引流量、术后卧床时间等围手术期指标;比较术前与术后1d及1周血清肌酸激酶(creatine kinase,CK),术前与术后6个月及12个月多裂肌(multifidus,MF)横截面积(cross-sectional area,CSA)、脂肪浸润(fatty infiltration,FI)评分及肌肉CT密度等椎旁肌评估指标;比较两组患者术前、术后1d、1周、6个月及12个月腰痛视觉模拟评分(visual analogue scale on low back pain,VAS-LBP)、腿痛视觉模拟评分(visual analogue scale on leg pain,VAS-LP)、Oswestry功能障碍指数(Oswestry disability index,ODI)。对两组术后并发症发生情况进行比较,术后12个月根据Bridwell标准评估两组椎间融合情况。结果:PE-TLIF组与PLIF组手术时间(211.2±38.5min vs 98.9±31.6min,P=0.000)、术后卧床时间(25.9±8.3h vs 52.4±14.8h,P=0.001)、术中失血量(112.8±79.6mL vs 232.5±122.5mL,P=0.002)、术后引流量(46.5±28.2mL vs 283.6±142.1mL,P=0.000)相比,差异均具有统计学意义。PE-TLIF组与PLIF组术前、术后6个月及12个月目标节段MF CSA组间比较均无明显差异(P>0.05),两组术前与术后6个月及12个月的目标节段MF CSA组内比较无明显差异(P>0.05)。PE-TLIF组与PLIF组术前、术后6个月目标节段MF FI评分组间比较无统计学差异(P>0.05),术后12个月,PLIF组目标节段MF FI评分较PE-TLIF组高,差异具有统计学意义[3.0(3.0,4.0)vs 3.0(2.8,3.0),P=0.031];PE-TLIF组术前与术后6个月、12个月目标节段MF FI评分组内比较无明显差异(P>0.05),PLIF组术前与术后6个月目标节段MF FI评分组内比较未发现明显差异(P=0.257),而术前与术后12个月比较,差异具有统计学意义[3.0(2.0,3.3)vs 3.0(3.0,4.0),P=0.016]。术前、术后6个月两组患者MF CT密度相比较无明显差异(P>0.05)。术后12个月,PLIF组目标节段MF密度明显降低,差异具有统计学意义[PE-TLIF:34.2(31.8,36.9)HU;PLIF:30.5(28.5,32.1)HU,P=0.000]。组内比较,PE-TLIF组术前与术后6个月、12个月目标节段MF肌肉密度比较差异无显著统计学意义(P>0.05)。PLIF组术前与术后6个月目标节段MF CT密度比较,未发现明显差异(P=0.516),术后12个月较术前明显升高,差异具有统计学意义[34.6(30.5,36.4)HU vs 30.5(28.5,32.5)HU,P=0.017]。PE-TLIF组与PLIF组术前CK值无明显差异(P=0.712)。术后1d、7d,PE-TLIF组CK值低于PLIF组(P<0.05)。PE-TLIF组与PLIF组患者术后随访VAS-LP、VAS-LBP评分以及ODI均优于术前,差异具有统计学意义(P<0.05)。术后1d、7d,PE-TLIF组VAS-LBP评分表现优于PLIF组(P<0.05)。术后6个月、12个月,两组患者的VAS-LBP评分比较无明显差异(P>0.05)。两组患者的VAS-LP评分以及ODI在随访时无明显差异(P>0.05)。两组患者术后并发症发生率比较无统计学差异(P=0.379),术后12个月两组患者椎间融合情况比较无统计学差异(P=0.877)。结论:PE-TLIF治疗单节段腰椎管狭窄症可获得与传统PLIF手术相同的临床疗效,且减小了对椎旁肌的影响,可减轻手术创伤。
