Use a bone window and look for fracture lines through the bone cortex. Rarely, compression fractures are seen as a radiodense line:
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File:X-ray of subtle compressive hip fracture, labeled.jpg|X-ray showing a suspected compressive subcapital [[hip fracture ]] as a radiodense line
File:CT of subtle compressive hip fracture.jpg|CT scan shows the same, atypical for a fracture since the cortex is coherent
File:T1 TSE MRI of hip fracture.jpg|T1-weighted, turbo spin echo, [[MRI]] confirms a fracture, as the surrounding bone marrow has low signal from edema.