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Type:
Educational Exhibit
Keywords:
Musculoskeletal bone, Bones, Emergency, Conventional radiography, CT, Diagnostic procedure, Trauma
Authors:
P. H. Ousema, R. E. Westerbeek; Deventer/NL
DOI:
10.1594/ecr2015/C-2500
Findings and procedure details
Fig. 1
Shenton's line is formed by ramus superior of the liliac bone and the femoral neck.
In case of hip dislocation,
Shenton's line is disrupted.
This case of posterior hip dislocation demonstrates cranialisation of the femoral head,
very common in posterior dislocation.
Fig. 3
CT imaging of a patient with posterior hip dislocation.
Fig. 5
Try to draw Shenton's line on the right hip.
This patient had an anterior dislocation of the right hip.
Note that cranialisation is usually absent in anterior dislocation.
Fig. 4
CT imaging of a patient with an exceptional form of dislocation: obturator dislocation: the femoral head is situated inferiorly in the obturator space.
Fig. 6
3D CT demonstrating the position of the femoral head in the obturator space.
Fig. 2
Shenton's line is obviously disrupted on both sides in this patient.
This patients actually has a very rare form of dislocation: "criss cross" dislocation with one side dislocated in the posterior and the other in the anterior direction.
Can you guess which side is dislocated posteriorly and which side is dislocated anteriorly?
The right hip has moved in the cranial direction: posterior dislocation.
The left hip has moved inferiorly and is projecting of the ramus inferior of the iliac bone: anterior dislocation.