BACKGROUND Indirect decompression is one of the potential benefits of anterior reconstruction in patients with spinal stenosis.On the other hand,the reported rate of revision surgery after indirect decompression highl...BACKGROUND Indirect decompression is one of the potential benefits of anterior reconstruction in patients with spinal stenosis.On the other hand,the reported rate of revision surgery after indirect decompression highlights the necessity of working out prediction models for the radiographic results of indirect decompression with assessing their clinical relevance.AIM To assess factors that influence radiographic and clinical results of the indirect decompression in patients with stenosis of the lumbar spine.METHODS This study is a single-center cross-sectional evaluation of 80 consecutive patients(17 males and 63 females)with lumbar spinal stenosis combined with the instability of the lumbar spinal segment.Patients underwent single level or bisegmental spinal instrumentation employing oblique lumbar interbody fusion(OLIF)with percutaneous pedicle screw fixation.Radiographic results of the indirect decompression were assessed using computerized tomography,while MacNab scale was used to assess clinical results.RESULTS After indirect decompression employing anterior reconstruction using OLIF,the statistically significant increase in the disc space height,vertebral canal square,right and left lateral canal depth were detected(Р<0.0001).The median(M)relative vertebral canal square increase came toМ=24.5%with 25%-75%quartile border(16.3%;33.3%)if indirect decompression was achieved by restoration of the segment height.In patients with the reduction of the upper vertebrae slip,the median of the relative increase in vertebral canal square accounted for 49.5%with 25%-75%quartile border(2.35;99.75).Six out of 80 patients(7.5%)presented with unsatisfactory results because of residual nerve root compression.The critical values for lateral recess depth and vertebral canal square that were associated with indirect decompression failure were 3 mm and 80 mm2 respectively.CONCLUSION Indirect decompression employing anterior reconstruction is achieved by the increase in disc height along the posterior boarder and reduction of the slipped vertebrae in patients with degenerative spondylolisthesis.Vertebral canal square below 80 mm2 and lateral recess depth less than 3 mm are associated with indirect decompression failures that require direct microsurgical decompression.展开更多
近年来,单侧椎板切开双侧减压(unilateral laminotomy for bilateral decompression,ULBD)技术在脊柱外科领域已经成为一种新兴的手术技术,得到越来越多研究者的认可。内镜辅助下行ULBD技术,术中可以获得更加清晰的视野而避免损伤硬膜...近年来,单侧椎板切开双侧减压(unilateral laminotomy for bilateral decompression,ULBD)技术在脊柱外科领域已经成为一种新兴的手术技术,得到越来越多研究者的认可。内镜辅助下行ULBD技术,术中可以获得更加清晰的视野而避免损伤硬膜囊及神经根,在保留脊柱的生理解剖结构的同时增大了术后脊柱稳定性,提高患者满意度及生活质量。该技术要求术者对解剖结构、手术步骤及器械有足够的认知,所以陡峭的学习曲线已然是该技术的一个难点。本文针对内镜下ULBD技术的发展历史、临床应用、应用前景,以及适应证、禁忌证和并发症等多个方面进行综述。展开更多
目的：比较微创通道下单侧椎板开窗减压术与开放减压内固定术治疗腰椎管狭窄症的疗效.方法：对2008年3月至2011年2月手术治疗的82例腰椎管狭窄症患者进行回顾性分析.根据手术方式不同分为A、B两组,A组32例,采用微创通道下单侧椎板开窗...目的：比较微创通道下单侧椎板开窗减压术与开放减压内固定术治疗腰椎管狭窄症的疗效.方法：对2008年3月至2011年2月手术治疗的82例腰椎管狭窄症患者进行回顾性分析.根据手术方式不同分为A、B两组,A组32例,采用微创通道下单侧椎板开窗椎管减压术治疗,男13例,女19例;平均年龄（56.31±4.31）岁;减压1个节段23例,2个节段9例.B组50例,采用开放减压内固定术治疗,男18例,女32例;平均年龄（57.53±4.28）岁;减压1个节段38例,2个节段12例.术前术后均采用视觉分析量表（visual analog scale,VAS）和Oswestry功能残损量表（Oswestry disability index,ODI）,评估腰痛、腿痛和行走耐受性（行走距离和耐受程度）.结果：82例均获随访,平均随访时间32.8个月（10.9～43.4个月）,两组患者在年龄、狭窄节段、术前腰腿痛VAS和ODI方面差异无统计学意义,但A组手术时间比B组短,出血量、住院时间、恢复日常生活时间和住院费用等方面比B组少.并发症方面两组间差异无统计学意义.结论：微创单侧椎板开窗减压术是治疗退变性腰椎管狭窄症的微创、有效的手术方式,可以在保留后方稳定结构的前提下使神经结构得到充分减压,在手术时间、出血量、住院时间、恢复日常生活时间和住院费用等方面有明显优势,可在把握严格手术适应证的前提下作为治疗退变性腰椎管狭窄症特别是老年患者的主要手术方法.展开更多
文摘BACKGROUND Indirect decompression is one of the potential benefits of anterior reconstruction in patients with spinal stenosis.On the other hand,the reported rate of revision surgery after indirect decompression highlights the necessity of working out prediction models for the radiographic results of indirect decompression with assessing their clinical relevance.AIM To assess factors that influence radiographic and clinical results of the indirect decompression in patients with stenosis of the lumbar spine.METHODS This study is a single-center cross-sectional evaluation of 80 consecutive patients(17 males and 63 females)with lumbar spinal stenosis combined with the instability of the lumbar spinal segment.Patients underwent single level or bisegmental spinal instrumentation employing oblique lumbar interbody fusion(OLIF)with percutaneous pedicle screw fixation.Radiographic results of the indirect decompression were assessed using computerized tomography,while MacNab scale was used to assess clinical results.RESULTS After indirect decompression employing anterior reconstruction using OLIF,the statistically significant increase in the disc space height,vertebral canal square,right and left lateral canal depth were detected(Р<0.0001).The median(M)relative vertebral canal square increase came toМ=24.5%with 25%-75%quartile border(16.3%;33.3%)if indirect decompression was achieved by restoration of the segment height.In patients with the reduction of the upper vertebrae slip,the median of the relative increase in vertebral canal square accounted for 49.5%with 25%-75%quartile border(2.35;99.75).Six out of 80 patients(7.5%)presented with unsatisfactory results because of residual nerve root compression.The critical values for lateral recess depth and vertebral canal square that were associated with indirect decompression failure were 3 mm and 80 mm2 respectively.CONCLUSION Indirect decompression employing anterior reconstruction is achieved by the increase in disc height along the posterior boarder and reduction of the slipped vertebrae in patients with degenerative spondylolisthesis.Vertebral canal square below 80 mm2 and lateral recess depth less than 3 mm are associated with indirect decompression failures that require direct microsurgical decompression.
文摘近年来,单侧椎板切开双侧减压(unilateral laminotomy for bilateral decompression,ULBD)技术在脊柱外科领域已经成为一种新兴的手术技术,得到越来越多研究者的认可。内镜辅助下行ULBD技术,术中可以获得更加清晰的视野而避免损伤硬膜囊及神经根,在保留脊柱的生理解剖结构的同时增大了术后脊柱稳定性,提高患者满意度及生活质量。该技术要求术者对解剖结构、手术步骤及器械有足够的认知,所以陡峭的学习曲线已然是该技术的一个难点。本文针对内镜下ULBD技术的发展历史、临床应用、应用前景,以及适应证、禁忌证和并发症等多个方面进行综述。
文摘目的：比较微创通道下单侧椎板开窗减压术与开放减压内固定术治疗腰椎管狭窄症的疗效.方法：对2008年3月至2011年2月手术治疗的82例腰椎管狭窄症患者进行回顾性分析.根据手术方式不同分为A、B两组,A组32例,采用微创通道下单侧椎板开窗椎管减压术治疗,男13例,女19例;平均年龄（56.31±4.31）岁;减压1个节段23例,2个节段9例.B组50例,采用开放减压内固定术治疗,男18例,女32例;平均年龄（57.53±4.28）岁;减压1个节段38例,2个节段12例.术前术后均采用视觉分析量表（visual analog scale,VAS）和Oswestry功能残损量表（Oswestry disability index,ODI）,评估腰痛、腿痛和行走耐受性（行走距离和耐受程度）.结果：82例均获随访,平均随访时间32.8个月（10.9～43.4个月）,两组患者在年龄、狭窄节段、术前腰腿痛VAS和ODI方面差异无统计学意义,但A组手术时间比B组短,出血量、住院时间、恢复日常生活时间和住院费用等方面比B组少.并发症方面两组间差异无统计学意义.结论：微创单侧椎板开窗减压术是治疗退变性腰椎管狭窄症的微创、有效的手术方式,可以在保留后方稳定结构的前提下使神经结构得到充分减压,在手术时间、出血量、住院时间、恢复日常生活时间和住院费用等方面有明显优势,可在把握严格手术适应证的前提下作为治疗退变性腰椎管狭窄症特别是老年患者的主要手术方法.
