本文選題：腰椎　切入點：計算機斷層掃描　出處：《青島大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：目的:研究皮質(zhì)骨通道(cortical bone trajectory,CBT)置腰椎椎弓根螺釘內(nèi)固定技術(shù)中螺釘?shù)膮?shù),為臨床應(yīng)用做指導(dǎo)。方法:連續(xù)收集正常人群的腰椎CT影像,利用計算機軟件測量L1-L5各節(jié)段左右側(cè)進釘點、進釘軌道的頭傾角和外傾角、螺釘直徑和長度,比較不同腰椎節(jié)段上述參數(shù)的差異,以及不同性別同一節(jié)段上述參數(shù)的差異。結(jié)果:共納入36例腰椎正常的被研究者,其中男性和女性各18例。測量結(jié)果顯示各節(jié)段CBT螺釘?shù)念^傾角和外傾角無顯著差異;L1-L5各節(jié)段CBT的直徑分別為(6.6±1.5)mm、(7.6±2.0)mm、(7.6±0.8)mm、(8.6±1.3)mm和(8.6±1.8)mm,其中L4和L5節(jié)段螺釘直徑顯著大于L1節(jié)段(P分別為0.020和0.031);L1-L5各節(jié)段CBT的長度分別為28.2(26.0,30.8)mm、30.9(20.4,39.6)mm、32.8(22.2,39.3)mm、46.7(26.3,49.4)mm和50.0(30.0,52.6)mm,L1節(jié)段螺釘長度顯著短于L2-L5節(jié)段(P分別為0.008、0.027、0.008和0.012),L2節(jié)段長度短于L4和L5節(jié)段(P分別為0.035和0.047);男性L2至L5節(jié)段螺釘?shù)臏y量直徑均大于女性(P值分別為0.042、0.041、0.035和0.037),L2、L3和L5節(jié)段螺釘長度顯著長于女性(P分別為0.017、0.043和0.026)。結(jié)論:正常成人腰椎CBT螺釘?shù)闹睆胶烷L度從L1到L5有增大趨勢,同一腰椎節(jié)段,男性CBT螺釘?shù)闹睆胶烷L度較女性有增大趨勢。
[Abstract]:Objective: to study the parameters of screw in cortical bone transpedicular screw fixation for clinical application. Methods: the CT images of lumbar vertebrae in normal subjects were collected continuously. The head inclination angle and external inclination angle, screw diameter and length of each segment of L1-L5 were measured by computer software. The differences of the above parameters in different lumbar segments were compared. Results: a total of 36 subjects with normal lumbar vertebrae were included. There were 18 males and 18 females respectively. The results showed that there was no significant difference between the head inclination angle and the external dip angle of each segment of CBT screw. The diameter of CBT in each segment of L1-L5 was 7.6 鹵2. 6 鹵2. 6 鹵0. 8 鹵1. 3 mm and 8. 6 鹵1. 8 mm, respectively. The diameter of L4 and L5 segment screws was significantly larger than that of L1 segment. The lengths of CBT in different segments of L1-L5 were 28.2mg-26.0 and 30.8mm respectively, and the lengths of L2-L2 and L2-L2 were significantly shorter than those of L2-L5 and L4 and L5, respectively (P = 0.035 and 0.047), respectively. The lengths of L2-L2 and L2 were shorter than those of L4 and L5 (0.035 and 0.047, respectively), and the lengths of L2-L2 and L5 were 0.035 and 0.047, respectively, and the lengths of L1-L5 were significantly shorter than those of L2-L5 (P = 0.0080.027) and L4 and L5 (P < 0.05) respectively. The lengths of L1-L5 segments were significantly shorter than those of L2-L5 segments (P = 0.0080.027) and that of male L2 to L5 segments respectively (P = 0.035 and 0.047) respectively. The length of L1-L5 screws was significantly shorter than that of L2-L5 segments (P = 0.0080.027). The length of L3 and L5 screws were significantly longer than that of females (P = 0.017, 0.043 and 0.026, respectively). Conclusion: the diameter and length of CBT screws in normal adult lumbar vertebrae increased from L1 to L5. In the same lumbar segment, the diameter and length of male CBT screw were larger than that of female.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：R687.3;R322

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本文編號：1598164