The anatomical study of transoral atlantoaxial reduction plate internal fixation  

作　　者：艾福志 尹庆水 王智运 夏虹 昌耘冰 吴增晖 刘景发 

机构地区：[1]Department of Orthopedics, Liuhuaqiao Hospital, Guangzhou 510010, China

出　　处：《Chinese Journal of Traumatology》2006年第1期8-13,共6页中华创伤杂志（英文版）

基　　金：ThisworkwassupportedbyResearchFundofMedicalSciencesofGuangdongProvinceofChina(A2005500)andResearchFundofNaturalSciencesofGuangdongProvinceofChina(20023001).

摘　　要：Objective： To study relevant anatomical features of the structures involved in transorai atlanto-axiai reduction plate （TARP） internal fixation through transorai approach for treating irreducible atlanto-axiai dislocation and providing anatomical basis for the clinical application of TARP. Methods： Ten fresh craniocervicai specimens were microsurgicaily dissected layer by layer through transorai approach. The stratification of the posterior pharyngeal wail, the course of the vertebral artery, anatomical relationships of the adjacent structures of the atlas and axis, and the closely relevant anatomical parameters for TARP internal fixation were measured. Results： The posterior pharyngeal wall consisted of two layers and two interspaces： the mucosa, prevertebrai fascia, retropharyngeai space, and prevertebrai space. The range from the anterior edge of the foramen magnum to C3 could be exposed by this approach. The thickness of the posterior pharyngeal wall was （ 3.6 ± 0.3 ） mm （ranging 2.9-4.3 mm） at the anterior tubercle of C1, （6.1 ±0.4） mm （ ranging 5.2-7.1 mm） at the lateral mass of C1 and （5.5±0.4） mm （ranging4.3-6.5 mm） at the central part of C2, respectively. The distance from the incisor tooth to the anterior tubercle of C1, C1 screw entry point, and C2 screw entry point was （82.5 ±7.8） mm （ranging71.4-96.2 mm）, （90. 1 ±3.8） mm （ranging 82.2-96.3 mm）, and （89.0±4.1） mm （ranging 81.3- 95.3 mm）, respectively. The distance between the vertebral artery at the atlas and the midline was （25.2 ± 2.3） mm （ ranging 20.4-29.7 mm ） and that between the vertebral artery at the axis and the midline was （ 18.4 _ 2.6 ） mm （ ranging 13.1-23.0 mm）. The allowed width of the atlas and axis for exposure was （39.4 ±2. 2） mm （ ranging 36.2-42. 7 mm ） and （ 39.0 ± 2.1 ） mm （ ranging 35.8-42.3 mm ）, respectively. The distance （ a ） between the two atlas screw insertion points （center of anterior aspect of C1 lateral mass �

关 键 词：Atlantoaxiai joint ARTHRODESIS Fracturefxation Internal fixators Bone plates ANATOMY 

分 类 号：R322[医药卫生—人体解剖和组织胚胎学]