目的:评估椎管减压Dynesys动态固定治疗多节段腰椎管狭窄症的中期临床疗效。方法:回顾性分析2010年3月~2015年6月在我院接受椎管减压以及3节段以上Dynesys动态固定手术治疗的59例腰椎管狭窄症患者的临床资料,其中男性28例,女性31例,年龄...目的:评估椎管减压Dynesys动态固定治疗多节段腰椎管狭窄症的中期临床疗效。方法:回顾性分析2010年3月~2015年6月在我院接受椎管减压以及3节段以上Dynesys动态固定手术治疗的59例腰椎管狭窄症患者的临床资料,其中男性28例,女性31例,年龄67.6±8.9岁(49~80岁)。统计患者手术时间、失血量、手术并发症情况;术前、术后3个月及末次随访时进行疼痛视觉模拟量表(visual analog scale,VAS)评分评价腰腿痛情况,采用Oswestry功能障碍指数(Oswestry disability index,ODI)评价腰椎功能情况,同时行腰椎X线检查并评估腰椎前凸角、固定节段活动度及上端邻近节段活动度,计算固定节段活动度保留百分比。结果:3节段Dynesys动态固定44例,4节段13例,5节段2例。手术时间259±58min,失血量593±296mL,随访7.2±1.3年(5~9年)。患者术后3个月VAS腰腿痛评分以及ODI明显下降,与术前相比差异具有统计学意义(P<0.05)。末次随访时,4例患者出现螺钉(6枚)松动,但无腰痛症状;1例患者术后34个月发生深部感染,经穿刺排脓、灌洗以及静脉使用抗生素4周后治愈;无翻修手术病例。末次随访时,固定节段活动度为13.1°±4.7°,较术前(28.9°±8.1°)平均保留了43.8%的活动度;上端邻近节段活动度及腰椎前凸角与术前相比差异无统计学意义(P>0.05)。结论:椎管减压Dynesys动态固定治疗多节段腰椎管狭窄症是一种安全、有效的方法,且创伤较小,术后腰椎活动功能较好。展开更多
Anterior lumbar interbody fusion （ALiF） followed by posterior pedicle screw fixation （PSF） in a second procedure is mostly used to implement lumbar spine fusion. ALIF followed by an- terior lumbar screw-plate has ...Anterior lumbar interbody fusion （ALiF） followed by posterior pedicle screw fixation （PSF） in a second procedure is mostly used to implement lumbar spine fusion. ALIF followed by an- terior lumbar screw-plate has a lot of advantages, but its biomechanical stability requires confirma- tion. This study evaluated the biomechanical stability of a novel anterior lumbar locked screw-plate （ALLSP） by comparison with posterior lumbar PSF. Twelve fresh human cadaveric lumbar speci- mens （L4-L5） were assigned to four groups： ALIF^PSF group, ALIF＋ALLSP （both fixed） group, ALIF group and an untreated control （both non-fixed） group. The first three groups received implan- tation of a rectangular titanium cage. Tests under axial compression, flexion, extension, lateral bend- ing, or rotation showed that the fixed groups had significantly stronger stability than the non-fixed groups （P=-0.000 for all）. The ALIF＋ALLSP group had significantly greater axial stiffness under ap- plied axial compression and significantly less angular displacement under rotational forces than the ALIF＋PSF group. The angular displacement of the ALIF＋ALLSP group was less under flexion than that of the ALIF＋PSF, and the angular displacement under lateral bending and extension was greater, but these differences were not statistically significant. In summary, the ALLSP conforms to the ante- rior lumbar spine and has good biomechanical stability. It is a reliable choice for enhancing the sta- bility of ALIF.展开更多
文摘目的:评估椎管减压Dynesys动态固定治疗多节段腰椎管狭窄症的中期临床疗效。方法:回顾性分析2010年3月~2015年6月在我院接受椎管减压以及3节段以上Dynesys动态固定手术治疗的59例腰椎管狭窄症患者的临床资料,其中男性28例,女性31例,年龄67.6±8.9岁(49~80岁)。统计患者手术时间、失血量、手术并发症情况;术前、术后3个月及末次随访时进行疼痛视觉模拟量表(visual analog scale,VAS)评分评价腰腿痛情况,采用Oswestry功能障碍指数(Oswestry disability index,ODI)评价腰椎功能情况,同时行腰椎X线检查并评估腰椎前凸角、固定节段活动度及上端邻近节段活动度,计算固定节段活动度保留百分比。结果:3节段Dynesys动态固定44例,4节段13例,5节段2例。手术时间259±58min,失血量593±296mL,随访7.2±1.3年(5~9年)。患者术后3个月VAS腰腿痛评分以及ODI明显下降,与术前相比差异具有统计学意义(P<0.05)。末次随访时,4例患者出现螺钉(6枚)松动,但无腰痛症状;1例患者术后34个月发生深部感染,经穿刺排脓、灌洗以及静脉使用抗生素4周后治愈;无翻修手术病例。末次随访时,固定节段活动度为13.1°±4.7°,较术前(28.9°±8.1°)平均保留了43.8%的活动度;上端邻近节段活动度及腰椎前凸角与术前相比差异无统计学意义(P>0.05)。结论:椎管减压Dynesys动态固定治疗多节段腰椎管狭窄症是一种安全、有效的方法,且创伤较小,术后腰椎活动功能较好。
文摘目的评估髓核摘除辅以Isobar动态固定治疗腰椎间盘突出症的临床疗效。方法 2009年5月至2010年11月行髓核摘除辅以Isobar动态固定治疗并获得24个月以上随访资料的患者21例。采用疼痛视觉模拟评分(visual ana-logue scale,VAS)、功能障碍指数(oswestry disability index,ODI)评定临床疗效。腰椎正侧过伸过屈位片测量动态固定节段及头侧邻近节段椎间隙高度比值(intervertebral space ratio,IVS)、椎间活动度(range of motion,ROM)和腰椎总活动度(L1～L5)的变化,采用Woodend分级评价椎间盘髓核有无信号改变。随访时间(28.45±3.59)个月。结果术后24个月VAS和ODI评分较术前均显著改善(P<0.05)。动态固定节段及邻近节段椎间隙高度比均较术前降低(P<0.05)。屈伸活动度:动态固定节段由(5.62±4.30)°降至(3.53±1.52)°(P<0.01),邻近节段和腰椎总活动度较术前均增加(P<0.05)。动态固定节段及邻近节段髓核信号与术前相比无明显改变(P>0.05)。结论髓核摘除辅以Isobar动态固定治疗腰椎间盘突出症具有满意的近期临床疗效,能维持固定节段术后椎间隙高度并保留一定的运动度,是一种可取的治疗方法。
基金supported by the Chongqing Key Tech nologies R&D Program(CSTC,No.2010AB5118-4)
文摘Anterior lumbar interbody fusion （ALiF） followed by posterior pedicle screw fixation （PSF） in a second procedure is mostly used to implement lumbar spine fusion. ALIF followed by an- terior lumbar screw-plate has a lot of advantages, but its biomechanical stability requires confirma- tion. This study evaluated the biomechanical stability of a novel anterior lumbar locked screw-plate （ALLSP） by comparison with posterior lumbar PSF. Twelve fresh human cadaveric lumbar speci- mens （L4-L5） were assigned to four groups： ALIF^PSF group, ALIF＋ALLSP （both fixed） group, ALIF group and an untreated control （both non-fixed） group. The first three groups received implan- tation of a rectangular titanium cage. Tests under axial compression, flexion, extension, lateral bend- ing, or rotation showed that the fixed groups had significantly stronger stability than the non-fixed groups （P=-0.000 for all）. The ALIF＋ALLSP group had significantly greater axial stiffness under ap- plied axial compression and significantly less angular displacement under rotational forces than the ALIF＋PSF group. The angular displacement of the ALIF＋ALLSP group was less under flexion than that of the ALIF＋PSF, and the angular displacement under lateral bending and extension was greater, but these differences were not statistically significant. In summary, the ALLSP conforms to the ante- rior lumbar spine and has good biomechanical stability. It is a reliable choice for enhancing the sta- bility of ALIF.
