CAJ | 학술논문

目的探讨自行设计的人工寰齿关节( AAOJ)在寰枢关节骨性标本上置换后寰枢椎部件固定螺钉通道的安全性和可行性.方法在32具正常成年人尸体寰枢关节湿性标本上行人工寰齿关节置换术后,行寰枢椎薄层CT扫描及三维重建,测量与AAOJ内固定的相关指标,并观察寰枢椎部件固定螺钉通道与横突孔、椎动脉沟、椎管等重要解剖结构安全空间.结果寰椎部件固定螺钉的长度(L)为(21.5±3.7) mm,寰椎部件固定螺钉外倾角(d)为(12.9±4.8)°,寰椎部件固定螺钉下倾角(δ)为(3.0±1.2)°.枢椎部件固定螺钉的长度(S)是(28.6±3.7) mm,枢椎部件固定螺钉的外倾角度(β)是(22.6±4.3)°,枢椎部件固定螺钉的下倾角度(θ)是(15.8±2.6)°.结论固定人工寰齿关节寰枢椎部件的螺钉通道与横突孔、椎动脉沟、椎管等重受解剖结构之间有安全空间范围.
목적 탐토자행설계적인공환치관절( AAOJ)재환추관절골성표본상치환후환추추부건고정라정통도적안전성화가행성.방법 재32구정상성년인시체환추관절습성표본상행인공환치관절치환술후,행환추추박층CT소묘급삼유중건,측량여AAOJ내고정적상관지표,병관찰환추추부건고정라정통도여횡돌공、추동맥구、추관등중요해부결구안전공간.결과 환추부건고정라정적장도(L)위(21.5±3.7) mm,환추부건고정라정외경각(d)위(12.9±4.8)°,환추부건고정라정하경각(δ)위(3.0±1.2)°.추추부건고정라정적장도(S)시(28.6±3.7) mm,추추부건고정라정적외경각도(β)시(22.6±4.3)°,추추부건고정라정적하경각도(θ)시(15.8±2.6)°.결론 고정인공환치관절환추추부건적라정통도여횡돌공、추동맥구、추관등중수해부결구지간유안전공간범위.
Objective To investigate feasibility and safety for screw tunnel of atlas-axis components of artificial atlanto-odontoid joint (AAOJ) arthroplasty in bony specimens of atlanto-axial joint.Methods The thin-slice CT scannning and the three-dimension reconstruction were performed through 32 sets of artificial atlanto-odontoid joint arthroplasty in adults' bony specimens.The indicators related to AAOJ internal fixation were measured and applied to observe the safe space among screw tunnel of atlas-axis components and important anatomy structures such as transverse foramen,groove for vertebral artery,vertebral canal,etc.Results The length of screw tunnel of atlas components (L) was (21.5 ±3.7) mm,the extraversion angle of screw tunnel of atlas components (α) was ( 12.9 ± 4.8) °,the length of screw tunnel of axis components (S) was (28.6± 3.7) mm,the extraversion angle of screw tunnel of axis components (β) was (22.6 ±4.3)°,and the downslope angle of screw tunnel of axis components (θ) was ( 15.8 ±2.6) °.Conclusion There is a comparatively large safe space between screw tunnel of atlas-axis components of AAOJ arthroplasty and transverse foramen,groove for vertebral artery,vertebral canal,etc.