Occult hip and pelvic fractures and accompanying muscle injuries around the hip.

Occult hip and pelvic fractures were almost equally seen among 113 cases with suspected hip fracture but were negative on plain radiography. Different patterns of associated muscle injuries in cases of occult hip fracture and pelvic fracture suggest that the mechanism of hip fracture and pelvic fracture is possibly different.  Ohishi T, Ito T, Suzuki D, Banno T, Honda Y. Arch Orthop Trauma Surg. 2011 Aug 28. [Epub ahead of print] PMID: 21874573