中华创伤骨科杂志
中華創傷骨科雜誌
중화창상골과잡지
CHINESE JOURNAL OF ORTHOPAEDIC TRAUMA
2010年
2期
151-155
,共5页
曹珺%代耀军%殷亮%黄河%何飞
曹珺%代耀軍%慇亮%黃河%何飛
조군%대요군%은량%황하%하비
体层摄影术%螺旋计算机%成像%三维%颈椎
體層攝影術%螺鏇計算機%成像%三維%頸椎
체층섭영술%라선계산궤%성상%삼유%경추
Tomngraphy%spiral computed%Imaging%three-dimensional%Cervical vertebrae
目的 评价应用多层螺旋CT扫描三维重建技术测量下颈椎椎弓根相关参数的可行性. 方法 8具成年男性颈椎标本经螺旋CT扫描后,把信息传送至随机工作站(Silicon Graphics O2),结合下颈椎榷弓根置钉的参数需求,进行三维重建[容积成像(VR)和多平面重组(MPR)]后测量椎弓根各个相关数据.然后对这些数据进行分析. 结果本组下颈椎椎弓根的外展角平均为42.02°±7.55°,C_7最小(35.63°±6.34°),C_4最大(46.94°±5.69°);头倾角平均为76.30°±12.01°,C_3最小(72.93°±6.57°),C,最大(81.27°±13.34°);入点至下关节缘距离平均为(11.23±1.78)mm,C_3最小[(10.54±1.25)mm],C_6最大[(12.05±1.40)mm];入点至侧块外缘距离各椎体相筹较大,平均为(2.65±1.21)mm,C_4最小[(1.69±0.81)mm],C_7最大[(3.74±0.99)mm];入点至椎体前缘距离各椎体差异较小,平均为(31.42±2.13)mm;椎弓根皮质骨高度平均为(8.43±1.30)mm,宽度半均为(5.54±1.26)mm;椎弓根松质骨高度平均为(3.69±1.19)mm,宽度平均为(2.67±1.15)mm;椎弓根皮质高度一般大于宽度,C_4内径最小,C_7内径最大. 结论 VR、MPR重建图像可满足椎弓根参数测量要求,其所测量的下颈椎椎弓根参数可满足经椎弓根手术的术前评估需求;下颈椎椎弓根变异较大.
目的 評價應用多層螺鏇CT掃描三維重建技術測量下頸椎椎弓根相關參數的可行性. 方法 8具成年男性頸椎標本經螺鏇CT掃描後,把信息傳送至隨機工作站(Silicon Graphics O2),結閤下頸椎榷弓根置釘的參數需求,進行三維重建[容積成像(VR)和多平麵重組(MPR)]後測量椎弓根各箇相關數據.然後對這些數據進行分析. 結果本組下頸椎椎弓根的外展角平均為42.02°±7.55°,C_7最小(35.63°±6.34°),C_4最大(46.94°±5.69°);頭傾角平均為76.30°±12.01°,C_3最小(72.93°±6.57°),C,最大(81.27°±13.34°);入點至下關節緣距離平均為(11.23±1.78)mm,C_3最小[(10.54±1.25)mm],C_6最大[(12.05±1.40)mm];入點至側塊外緣距離各椎體相籌較大,平均為(2.65±1.21)mm,C_4最小[(1.69±0.81)mm],C_7最大[(3.74±0.99)mm];入點至椎體前緣距離各椎體差異較小,平均為(31.42±2.13)mm;椎弓根皮質骨高度平均為(8.43±1.30)mm,寬度半均為(5.54±1.26)mm;椎弓根鬆質骨高度平均為(3.69±1.19)mm,寬度平均為(2.67±1.15)mm;椎弓根皮質高度一般大于寬度,C_4內徑最小,C_7內徑最大. 結論 VR、MPR重建圖像可滿足椎弓根參數測量要求,其所測量的下頸椎椎弓根參數可滿足經椎弓根手術的術前評估需求;下頸椎椎弓根變異較大.
목적 평개응용다층라선CT소묘삼유중건기술측량하경추추궁근상관삼수적가행성. 방법 8구성년남성경추표본경라선CT소묘후,파신식전송지수궤공작참(Silicon Graphics O2),결합하경추각궁근치정적삼수수구,진행삼유중건[용적성상(VR)화다평면중조(MPR)]후측량추궁근각개상관수거.연후대저사수거진행분석. 결과본조하경추추궁근적외전각평균위42.02°±7.55°,C_7최소(35.63°±6.34°),C_4최대(46.94°±5.69°);두경각평균위76.30°±12.01°,C_3최소(72.93°±6.57°),C,최대(81.27°±13.34°);입점지하관절연거리평균위(11.23±1.78)mm,C_3최소[(10.54±1.25)mm],C_6최대[(12.05±1.40)mm];입점지측괴외연거리각추체상주교대,평균위(2.65±1.21)mm,C_4최소[(1.69±0.81)mm],C_7최대[(3.74±0.99)mm];입점지추체전연거리각추체차이교소,평균위(31.42±2.13)mm;추궁근피질골고도평균위(8.43±1.30)mm,관도반균위(5.54±1.26)mm;추궁근송질골고도평균위(3.69±1.19)mm,관도평균위(2.67±1.15)mm;추궁근피질고도일반대우관도,C_4내경최소,C_7내경최대. 결론 VR、MPR중건도상가만족추궁근삼수측량요구,기소측량적하경추추궁근삼수가만족경추궁근수술적술전평고수구;하경추추궁근변이교대.
Objective To evaluate the clinical significance of measuring the lower cervical pedicle using multiplanar spinal CT (MSCT) 3D reconstruction. Methods Eight specimens of adult male ver-tebrae were examined by MSCT. The data were sent to Silicon Graphics 02 for 3D reconstruction according to the parameter requirements for lower cervical pedicle fixation, using reconstruction images of volume rendering (VR) and muhiplanar reformation (MPR). Results Statistically significant differences were found be-tween vertebrae in the following lower cervical data, including the pedicle angle relative to transverse plane= 42.02°±7.55°, with the largest at C4 and the smallest at C7; the pedicle angle relative to sagittal plane =76. 30°±12.01°, with the largest at C7 and the smallest at C3; the distance from the entry-peint to the margin of lower joint=11.23 mm±1.78 mm, with the longest at C6 and the shortest at C3; the distance from the entry-point to the outermost margin of lateral mass=2.65mm±1.21mm, with the longest at C7 and the shortest at C4. The distance from the entry-point to the vertebral anterior border=31.42 mm±2.13mm,with little difference between C3 and C7; the height of pedicle cancellous bone=3.69 mm±1.19 mm and the width = 2.67 mm ± 1.15 ram; the height of pedicle cortical bone=8.43 mm ± 1.30 mm and the width =5.54 mm ± 1.26 ram. The longest inside diameter of pedicle was seen at C7 and the shortest at C4. Generally the height of pedicle was larger than the width of pedicle. Conclusion Since 3 D reconstruction images by VR and MPR techniques can be used to measure various data related to the pedicles, they can help the pre-operative planning for transpedicular screw fixation of the lower cervical spine.
