We describe the case of a 67-year-old woman with L5-S1 ontogenetic spondylolisthesis treated with pedicle fixation associated with interbody arthrodesis performed with S1-L5 trans-sacral screwing according to the tech...We describe the case of a 67-year-old woman with L5-S1 ontogenetic spondylolisthesis treated with pedicle fixation associated with interbody arthrodesis performed with S1-L5 trans-sacral screwing according to the technique of Bartolozzi. The procedure was followed by a wide decompressive laminectomy. The patient had a progressive improvement of the symptoms which gradually disappeared in 12 mo. The radiograph at 6 and 12 mo showed complete fusion system. The choice of treatment in L5-S1 ontogenetic spondylolithesis is related to a correct clinical and diagnostic planning(X-ray, computer tomography magnetic resonance imaging, Measurement). In particular, the severity index and the square of unstable zone, and the standard measurements already described in the literature, are important to understand and to plane the correct surgical strategy, that require, in most of the times, fusion and interbody artrodesis.展开更多
目的对国人经第1第2骶椎骶髂(sacral alar-iliac,SAI)螺钉固定钉道各参数进行CT测量,比较S1AI和S2AI螺钉钉道解剖参数差异。方法随机选取2015年4-10月本院影像归档和通信系统中60例骨骼发育成熟且骨盆正常国人的三维计算机断层扫描(3DCT...目的对国人经第1第2骶椎骶髂(sacral alar-iliac,SAI)螺钉固定钉道各参数进行CT测量,比较S1AI和S2AI螺钉钉道解剖参数差异。方法随机选取2015年4-10月本院影像归档和通信系统中60例骨骼发育成熟且骨盆正常国人的三维计算机断层扫描(3DCT)重建数据进行分析。S1和S2骶髂骨螺钉钉道参数中最大长度和宽度的轨迹通过旋转并截取三维骨盆获得。对长度和角度参数进行评估和比较。结果 S1AI置钉较S2AI置钉尾向倾角大,男性平均增加约26°,女性平均增加约24°[男性S1(57.25±4.37)°vs S2(31.02±7.43)°,女性S1(58.61±5.11)°vs S2(34.16±6.02)°;P<0.05];外倾稍小,男性、女性皆平均减少2°[男性S1(38.14±3.10)°vs S2(40.25±2.84)°,女性S1(37.24±2.96°)vs S2(39.25±2.64°);P<0.05];最长钉道长度:男性S1(119.46±3.77)mm vs S2(120.04±6.52)mm(P=0.551),女性S1(108.21±5.24)mm vs S2(109.47±4.63)mm(P=0.434);骶骨内钉道长度:男性S1(43.12±4.63)mm vs S2(35.75±5.03)mm(P<0.05),女性S1(39.73±5.85)mm vs S2(32.16±5.28)mm(P<0.05);髂骨内宽度:男性S1(22.05±4.91)mm vs S2(21.49±3.22)mm(P=0.672),女性S1(16.93±2.12)mm vs S2(15.35±2.71)mm(P=0.366);骨皮质距离:男性S1(9.42±2.41)mm vs S2(9.01±2.33)mm(P=0.352),女性S1(5.92±1.48)mm vs S2(6.34±1.26)mm(P=0.837)。S1AI与S2AI的入钉点比较,距皮肤距离、距中线距离、距髂后上棘距离均有统计学差异。结论国人成人骨盆存在最佳骶髂骨螺钉置钉钉道时,S1AI及S2AI螺钉均具有可行性。S1AI螺钉较S2AI螺钉置钉角度尾向倾角男性平均增加约26°,女性平均增加约24°,外倾稍小,男性女性皆平均减少2°,最长置钉长度基本相同,S1AI的入钉点距皮肤和髂后上棘更深,距中线稍远。临床操作中应注意S1和S2骶髂骨螺钉置钉角度、钉道长度及入钉点的差异。展开更多
文摘We describe the case of a 67-year-old woman with L5-S1 ontogenetic spondylolisthesis treated with pedicle fixation associated with interbody arthrodesis performed with S1-L5 trans-sacral screwing according to the technique of Bartolozzi. The procedure was followed by a wide decompressive laminectomy. The patient had a progressive improvement of the symptoms which gradually disappeared in 12 mo. The radiograph at 6 and 12 mo showed complete fusion system. The choice of treatment in L5-S1 ontogenetic spondylolithesis is related to a correct clinical and diagnostic planning(X-ray, computer tomography magnetic resonance imaging, Measurement). In particular, the severity index and the square of unstable zone, and the standard measurements already described in the literature, are important to understand and to plane the correct surgical strategy, that require, in most of the times, fusion and interbody artrodesis.
文摘目的对国人经第1第2骶椎骶髂(sacral alar-iliac,SAI)螺钉固定钉道各参数进行CT测量,比较S1AI和S2AI螺钉钉道解剖参数差异。方法随机选取2015年4-10月本院影像归档和通信系统中60例骨骼发育成熟且骨盆正常国人的三维计算机断层扫描(3DCT)重建数据进行分析。S1和S2骶髂骨螺钉钉道参数中最大长度和宽度的轨迹通过旋转并截取三维骨盆获得。对长度和角度参数进行评估和比较。结果 S1AI置钉较S2AI置钉尾向倾角大,男性平均增加约26°,女性平均增加约24°[男性S1(57.25±4.37)°vs S2(31.02±7.43)°,女性S1(58.61±5.11)°vs S2(34.16±6.02)°;P<0.05];外倾稍小,男性、女性皆平均减少2°[男性S1(38.14±3.10)°vs S2(40.25±2.84)°,女性S1(37.24±2.96°)vs S2(39.25±2.64°);P<0.05];最长钉道长度:男性S1(119.46±3.77)mm vs S2(120.04±6.52)mm(P=0.551),女性S1(108.21±5.24)mm vs S2(109.47±4.63)mm(P=0.434);骶骨内钉道长度:男性S1(43.12±4.63)mm vs S2(35.75±5.03)mm(P<0.05),女性S1(39.73±5.85)mm vs S2(32.16±5.28)mm(P<0.05);髂骨内宽度:男性S1(22.05±4.91)mm vs S2(21.49±3.22)mm(P=0.672),女性S1(16.93±2.12)mm vs S2(15.35±2.71)mm(P=0.366);骨皮质距离:男性S1(9.42±2.41)mm vs S2(9.01±2.33)mm(P=0.352),女性S1(5.92±1.48)mm vs S2(6.34±1.26)mm(P=0.837)。S1AI与S2AI的入钉点比较,距皮肤距离、距中线距离、距髂后上棘距离均有统计学差异。结论国人成人骨盆存在最佳骶髂骨螺钉置钉钉道时,S1AI及S2AI螺钉均具有可行性。S1AI螺钉较S2AI螺钉置钉角度尾向倾角男性平均增加约26°,女性平均增加约24°,外倾稍小,男性女性皆平均减少2°,最长置钉长度基本相同,S1AI的入钉点距皮肤和髂后上棘更深,距中线稍远。临床操作中应注意S1和S2骶髂骨螺钉置钉角度、钉道长度及入钉点的差异。