The crossover sign is a marker in plain film for acetabular retroversion. What clinical syndrome is this thought to predispose to?
Femeroacetabular impingement (FAI).
The crossover sign may be present in which type of femoroacetabular impingement - cam or pincer?
Pincer type.
No fracture. Both hip joints are normal and symmetrical.
Bilateral crossover signs are demonstrated (indicative of acetabular retroversion).