The normal posterior atlantoaxial relationship
Tóm tắt
The relationship of the posterior aspects of the atlas and the axis were studied in 100 normal adult volunteers. The ratio of the height of the atlantal spinolaminar line to the atlantoaxial interspinous distance was found to be remarkably constant and was less than 2.0 in all men and women. This ratio should prove helpful in detecting hyperflexion injuries isolated to the atlantoaxial level.
Tài liệu tham khảo
Bohrer S, Klein A, Martin W III (1985) V-shaped predens space. Skeletal Radiol 14: 111
Gehweiler JA, Osborn RL, Becker RF (1980) The radiology of vertebral trauma. WB Saunders, Philadelphia
Monu J, Bohrer S, Howard G (1987) Some upper cervical spine norms. Spine 12:515
Naidich JB, Naidich TP, Garfein C, Leibeskind AL, Hyman RA (1977) The widened interspinous distance: a useful sign of anterior cervical dislocation in the supine frontal projection. Radiology 123:113
Pennecot GF, Leonard P, Peyrot-Des-Gachons S, Hardy JR, Poliquen JC (1984) Traumatic ligamentous instability of the cervical spine in children. J Pediatr Orthop 4:339