CT 测量成人寰枢椎后方部分结构数据设计寰枢椎板间融合器.

邹小宝; 马向阳; 王宾宾; 杨浩志; 葛 苏; 陈育岳; 张 双; 倪 菱; 夏 虹; 吴增晖

BACKGROUND: Atlantoaxial lateral mass joint fusion cage has always been a focus of research, but its implant operation is too risky. At present, there is no widely used atlantoaxial fusion cage. OBJECTIVE: To investigate the anatomical feasibility of CT image and preliminary design of posterior atlantoaxial interlaminar fusion cage in adults. METHODS: Measurement of atlantoaxial three-dimensional CT of 100 adult cases (50 males and 50 females) was performed, including C1 unilateral posterior arch length, C1 posterior arch width, C2 unilateral lamin length, C2 lamina thickness and the distance of C1 posterior arch higher edge to C2 lamin lower edge. CT measurement data of posterior part of atlantoaxial structure were analyzed, and atlantoaxial interlaminar fusion cage was designed. RESULTS AND CONCLUSION: (1) The C1 unilateral posterior arch length of man and woman was (23.41±1.48) mm and (22.23±1.25) mm respectively, and the C1 posterior arch width was (6.00±0.96) mm and (5.28±0.78) mm respectively, and the C2 unilateral lamin length was (18.54±2.23) mm and (17.31±0.91) mm respectively, and the C2 lamina thickness was (5.12±1.31) mm and (4.98±1.26) mm, respectively. The distance of C1 posterior arch higher edge to C2 lamin lower edge was (32.63±2.76) mm and (31.39±4.04) mm, respectively. (2) There were no statistically significant differences in the bilateral measurement data of different genders (P > 0.05). The C1 unilateral posterior arch length, C1 posterior arch width and C2 unilateral lamin length in men were larger than those in women, and the differences were statistically significant (P 2 lamina thickness and the distance of C1 posterior arch higher edge to C2 lamin lower edge of different genders (P > 0.05). (3) CT measurement data suggested that atlantoaxial interlaminar fusion cage is feasible. (4) Preliminary design of atlantoaxial interlaminar fusion cage was successful, and obtained the national patent. (5) It is suggested that atlantoaxial interlaminar fusion cage has application feasibility and can be used in posterior atlantoaxial screw-rod fixation and fusion to improve the fusion rate of bone graft.

BONE grafting; TISSUE engineering; PATENTS; EDGES (Geometry); GENDER; ADULTS

Chinese Journal of Tissue Engineering Research / Zhongguo Zuzhi Gongcheng Yanjiu, 2020, Vol 24, Issue 36, p5837

2095-4344

Academic Journal

10.3969/j.issn.2095-4344.2933