CAJ | 학술논문

目的探讨胸腰椎经椎弓根通道行椎体重建术的相关径线及重建范围.方法取30具新鲜人体胸腰椎标本T10～L2节段,行薄层CT扫描.将每节椎体扫描所得数据导入医学三维重建软件Mimics 10.0进行三维图像重建,测量每个椎体的椎弓根轴线长度,椎弓根长度、宽度及高度,椎体高度,椎弓根入点在矢状面可变化角度(α)及椎弓根入点在横断面可变化角度(β);计算经单侧椎弓根通道行椎体重建术植骨的体积及经椎弓根椎体重建占相应椎体体积的比例.结果 T10～L2椎体椎弓根轴线长度分别为平均(32.64±5.66)、(31.80±6.41)、(38.46±3.52)、(40.31±4.39)、(42.72±3.36) mm.椎弓根长度分别为(12.38±2.06)、(11.77±2.15)、(14.63±234)、(15.46±3.04)、(14.37±1.64) mm;椎弓根内径宽度分别为(5.09±0.26)、(5.79±1.10)、(7.35±1.87)、(7.17±0.69)、(7.14±0.84) mm;椎弓根内径高度分别为(9.76±1.43)、(10.83±0.77)、(11.16±0.78)、(11.33±1.26)、(11.16±0.96) mm.椎体高度分别为(18.12±0.88)、(19.48±1.02)、(21.25±1.27)、(22.88±0.68)、(23.20±0.93) mm.α角分别为25.06°±3.84°、30.87°±7.28°、25.12°±5.18°、20.55°±1.54°及21.74°±2.58°;β角分别为43.60°±4.52°、49.48°± 10.30°、41.97°±5.19°、40.29°±6.49°及42.85°±6.47°.植骨的体积分别为(1.02±0.36)、(1.30±0.43)、(1.96±0.67)、(1.84±0.48)、(1.94±0.41) cm3,占相应椎体体积的53.95％、55.68％、52.67％、49.53％、48.14％.结论经椎弓根通道可有效行终板下复位及椎体内空腔填充,完成椎体重建术.
목적 탐토흉요추경추궁근통도행추체중건술적상관경선급중건범위.방법 취30구신선인체흉요추표본T10～L2절단,행박층CT소묘.장매절추체소묘소득수거도입의학삼유중건연건Mimics 10.0진행삼유도상중건,측량매개추체적추궁근축선장도,추궁근장도、관도급고도,추체고도,추궁근입점재시상면가변화각도(α)급추궁근입점재횡단면가변화각도(β);계산경단측추궁근통도행추체중건술식골적체적급경추궁근추체중건점상응추체체적적비례.결과 T10～L2추체추궁근축선장도분별위평균(32.64±5.66)、(31.80±6.41)、(38.46±3.52)、(40.31±4.39)、(42.72±3.36) mm.추궁근장도분별위(12.38±2.06)、(11.77±2.15)、(14.63±234)、(15.46±3.04)、(14.37±1.64) mm;추궁근내경관도분별위(5.09±0.26)、(5.79±1.10)、(7.35±1.87)、(7.17±0.69)、(7.14±0.84) mm;추궁근내경고도분별위(9.76±1.43)、(10.83±0.77)、(11.16±0.78)、(11.33±1.26)、(11.16±0.96) mm.추체고도분별위(18.12±0.88)、(19.48±1.02)、(21.25±1.27)、(22.88±0.68)、(23.20±0.93) mm.α각분별위25.06°±3.84°、30.87°±7.28°、25.12°±5.18°、20.55°±1.54°급21.74°±2.58°;β각분별위43.60°±4.52°、49.48°± 10.30°、41.97°±5.19°、40.29°±6.49°급42.85°±6.47°.식골적체적분별위(1.02±0.36)、(1.30±0.43)、(1.96±0.67)、(1.84±0.48)、(1.94±0.41) cm3,점상응추체체적적53.95％、55.68％、52.67％、49.53％、48.14％.결론 경추궁근통도가유효행종판하복위급추체내공강전충,완성추체중건술.
Objective To evaluate the processing line and the range of thoracolumbar (T10-L2) vertebral pedicle channel for vertebral reconstruction.Methods The thoracolumbar vertebrae (T10-L2) of thirty fresh specimens were performed CT scan,slice thickness of 1 mm without interval.Each vertebral body was reconstructed using the software Mimics 10.0 and measured each vertebral body pedicle axis length (L),pedicle length (L0),width (W) and height (H0),vertebral height (H),pedicle entry point in the sagittal plane angle (α) and the pedicle entry point in the cross-section angle (β),and further calculated the volume through vertebral pedicle channel for vertebral reconstruction.Results The average thoracolumbar (T10,T11,T12,L1,and L2) vertebral pedicle axis length was 32.64±5.66,31.80±6.41,38.46±3.52,40.31±4.39,and 42.72±3.36 mm prospectively.The average vertebral pedicle length was 12.38±2.06,11.77±2.15,14.63±2.34,15.46±3.04 and 14.37±1.64 mm.The average pedicle width was 5.09±0.26,5.79±1.10,7.35±1.87,7.17±0.69 and 7.14±0.84 mm.The average pedicle height was 9.76±1.43,10.83±0.77,11.16±0.78,11.33±1.26 and 11.16±0.96 mm.The average vertebral height was 18.12±0.88,19.48±1.02,21.25±1.27,22.88±0.68 and 23.20±0.93 mm.The average α angle was 25.06°±3.84°,30.87°±7.28°,25.12°±5.18°,20.55°±1.54° and 21.74°±2.58°.The average β angle was 43.60°±4.52°,49.48°±10.30°,41.97°±5.19°,40.29°±6.49° and 42.85°±6.47°.The average volume of one side of vertebral body after vertebral reconstruction respectively was 1.02±0.36,1.30±0.43,1.96±0.67,1.84±0.48 and 1.94±0.41 cm3,the corresponding percentage of total vertebral volume was 53.95％,55.68％,52.67％,49.53％ and 48.14％.Conclusion It is possible to use the pedicle channels for vertebral body reconstruction,reduction the end-plates and filling bone graft inside vertebral body.