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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Jumper's fracture is seen in -
assistant
The correct answer is  Jumper's fractures of the sacrum are characterized by an H - or U - shaped fracture line in the upper sacrum, usually involving the S1-S2 region.
Typical, the anterior segment of the pelvic ring is not injured.
So, Jumper's fracture involve the posterior segment of pelvic ring.