PMC6216073_01
CT image of the pelvis after injury, showing the both-column fracture in the left acetabulum and bilateral pubic bone fractures (arrowheads).
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Radiographs and computed tomography (CT) showed a both-column fracture in the left acetabulum and bilateral pubic bone fractures (Fig. 1A,B).
(A) Anteroposterior and (B) lateral pelvic radiographs before HO resection. HO (white dotted line) bridged the left hip posteriorly.
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Radiographs and CT revealed HO (Brooker class 4) around the left hip joint (Fig. 2A,B).
On the bone scan image, the arrowheads show increased uptake around the left hip.
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A bone scan showed intense uptake around the left hip (Fig. 3).
(A) Resection of HO posterior to the trochanter by a chisel through a direct lateral approach. (B) Piece-by-piece resection of HO.
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During the operation, we found HO posterior to the greater trochanter and identified the sciatic nerve posterior to the HO (Fig. 4).
(A) Anteroposterior and (B) lateral pelvic radiographs at the final follow-up, 5.5 years after HO resection. The patient developed no HO recurrence.
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Radiographs showed no signs of HO recurrence (Fig. 5A, B), and he could walk with no support.