When cops arrived they found the girlfriend bleeding from the face with a contusion on the back of her head.

当警察赶到时，他们发现这位女友头部受伤，满脸是血。

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Conclusion:The rushing force of dislocated radial head, and the contusion, compression, stretching and adhesion of the nerve are all contributory factors of the nerve injury.

孟氏骨折合并骨间背侧神经损伤的机制与局部解剖特点有密切关系，是脱位桡骨小头的冲击力、挫伤、压迫、牵拉和粘连等诸因素综合作用所致。

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Trauma to the hip may lead to contusion or mechanical interruption to the lateral retinacular vessels, the main blood supply of the femoral head and neck.

髋关节创伤可能导致挫伤或机械中断向外侧韧带的船只，主要的血供股骨头颈部。

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