Radiology Grand Rounds XVIII
This patient had posterior dislocation of hip reduced about 6 months back now he presents with complaint of pain in the left hip.
FAQ (questions to be answered)
(a)Is it unreduced?
(b) Has it developed AVN?
(c) Is there any associated injury which Xray did not pickup?
MRI is silent on it
(d) Can anything else help?
YES CT would help
(e) What does it show?
It shows post wall fracture comminuted with loose fragment in the joint cavity
(f)What are the complications of posterior dislocation hip?
Complications-- include avascular necrosis, osteoarthosis, sciatic nerve injury and heterotrophic ossification.
(g) What are the types of acetabular fractures?
Acetabular fractures are classified according to Judet classification usually.
Walls, Columns and Transverse varieties
Posterior column with posterior wall (also a column fracture)
Transverse with posterior wall (also a transverse fracture)
Posterior column with posterior wall (also a wall fracture)
Anterior column with posterior hemitransverse (also a transverse fracture)
Transverse with posterior wall (also a wall fracture)
Anterior column with posterior hemitransverse (also a column fracture)
Common types (90%)
Transverse with posterior wall
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