Quantitative anatomic study of atlanto-odontoid joint and design of an artificial atlanto-odontoid joint for the orthopedic clinic  

作　　者：胡勇 杨述华 谢辉 徐荣明 马维虎 

机构地区：[1]Department of Orthopaedics,Ningbo Sixth Hospital [2]Department of Orthopaedics,Union Hospital,Tongji Medical College,Huazhong University of Science and Technology

出　　处：《Chinese Journal of Traumatology》2007年第3期138-144,共7页中华创伤杂志（英文版）

摘　　要：Objective： To observe and measure morphological parameters of the Chinese atlanto-odontoid joint anatomically in order to provide an anatomic data for designing artificial atlanto-odontoid joint used for substituting the destroyed atlanto-odontoid joint in the orthopedic clinic. Methods： The relative anatomic parameters of 32 sets of fresh Chinese adults ＇atlanto-odontoid joint specimens were measured with a digital caliper and a goulometer, including the width of anterior arch of atlas （ AW）, the thickness of atlas at the junction of anterior arch and lateral mass （ AD）, the thickness and height of anterior tubercle of atlas （ AT and AH ）, the middle height, length and width of the lateral mass （MHL, L and LW ）, the height, transverse and anteroposterior distance of odontoid process （DH, DW and DD）, the retroversion angle of odontoid process （ β° ）, the facial angle of odontoid process （ θ° ） and so on. The data were statistically analyzed in order to ascertain the morphological parameter ranges of artificial atlanto-odontoid joint. An artificial atlanto-odontoid joint was designed according to these data. The operations of anlanto-odontoid joint arthroplasty were conducted in 3 cases of adult cadaver specimens. Resnits： The width of AW was （ 20.45 ± 1.5 3 ） nun, AD （3.91 ±1.32） nun, AT and AH （9.43± 1.93） nun and （ 10.23± 1.32 ） mm, respectively, MHL and LW （ 13.68 ± 1.38 ） mm and （ 12.98 ±1.52 ） mm, respectively, DH （15.25±2.11）mm, DW and DD （9.69±1.38）mm and （ 11.26 ± 1.02 ） ram, respectively, β° （ 12.23 ± 4.27 ） degree, θ° （ 65.48 ±2.17 ） degree. The prosthesis was composed of atlas part, axis part and accessories. Neither the vertebral artery nor the medulla oblongata was injured. Conclusions： The design of artificial atlantoodontoid joint is feasible according to these parameters. The artificial joint can not only rebuild the stability of atlanto-axial joint, but also reserve the rotation function between

关 键 词：Atlanto-axial joint Joint prosthesis Atlanto-odontoid joint 

分 类 号：R687.3[医药卫生—骨科学]