PMC9669686_01
A vicious attitude of the left hip in flexion, abduction, and external
rotation associated with dermabrasion on the inner side of the leg, standard
X-ray of the pelvis showing a pure obturator dislocation of the left hip,
and post-reductional radiography.
10.1177_2050313X221137450-fig1.jpg
PMC9669686_01_10.1177_2050313X221137450-fig1.jpg
fig1-2050313X221137450
On inspection, his left hip was in flexion abduction external rotation (Figure 1), without associated cutaneous opening. A standard radiograph of the frontal pelvis showed a pure obturator dislocation of the right hip with no associated fracture (Figure 1), no associated femoral neck fracture, or other bone lesion noted. The reduction was confirmed by fluoroscopy and post-operative radiographs (Figure 1).
A post-reduction scanner confirms the dislocation's "pure" nature and the
absence of foreign bodies in the intra-articular space.
10.1177_2050313X221137450-fig2.jpg
PMC9669686_01_10.1177_2050313X221137450-fig2.jpg
fig2-2050313X221137450
Computed tomography (CT) scan of the pelvis was done to rule out intra-articular osteochondral fragment and to further assess the femoral head (Figure 2).
Clinical and radiological results at 2 years without signs of osteonecrosis
of the femoral head or coxarthrosis.
10.1177_2050313X221137450-fig3.jpg
PMC9669686_01_10.1177_2050313X221137450-fig3.jpg
fig3-2050313X221137450
After 2 years of follow-up, the hip was stable and radiographs showed no signs of osteonecrosis (Figure 3).