IOM rupture was found in all MFF patients. The range of IOM injury in MFF was only below the distal 1/3 of leg,not consistent with the proximal fibula fracture.

• MFF患者都有骨间膜损伤 ,但仅为小腿远端 1/ 3水平以下的部分断裂 ,并未达到高位腓骨骨折水平。