. A practical treatise on fractures and dislocations. Direction of the medianaxis in the different sec-tions of the spinal col-umn. (Henke.) DISLOCATIONS OF THE VERTEBRA. 555 determined by aiitopsical examination. Under the seeond head, disloca-tions by flexion, are included bilateral dislocations forward or force continuing to act after the normal limit of forward flexion ofthe column has been reached, the ligamenta subflava are ruptured, andthe posterior portion of the intervertebral disk is torn or separated from Fig. Complete unilateral dislocation by rotation or abducti
. A practical treatise on fractures and dislocations. Direction of the medianaxis in the different sec-tions of the spinal col-umn. (Henke.) DISLOCATIONS OF THE VERTEBRA. 555 determined by aiitopsical examination. Under the seeond head, disloca-tions by flexion, are included bilateral dislocations forward or force continuing to act after the normal limit of forward flexion ofthe column has been reached, the ligamenta subflava are ruptured, andthe posterior portion of the intervertebral disk is torn or separated from Fig. Complete unilateral dislocation by rotation or abduction; cervical vertebra. (Konig.) the vertebra with or without avulsion of a portion of the bone; thearticular processes of the upper vertebra lodge in front of those of thelower in the notches. Sometimes the processes do not pass entirelybeyond each other, but remain in contact at their extremities; andsometimes, the movement being accompanied by slight rotation of thevertebrae upon each other, one articular process is displaced furtherforward than the other. The lumen of the vertebral canal may beseriously encroached upon in this dislocation, and its contents injuredby compression against the upper edge of the body of the lower ver-tebra. The mechanism of the double dislocation backward, of which a fewcases have been accurately observed, has not been demonstrated, butthe possibility of its production by extreme dorsal flexion of the columnis such that it may, provisionally at least, be placed in this class. Themotion is arrested by
Size: 2073px × 1205px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectfractur, bookyear1912
