Abdelbaki Ahmed, Assani Sadaf, Bhatt Neeraj, Karol Ian, Feldman Alan
J Am Podiatr Med Assoc. 2018 Mar;108(2):168-171. doi: 10.7547/16-095.
The foot is considered the second most common location for foreign bodies. The most common foreign bodies include needles, metal, glass, wood, and plastic. Although metallic foreign bodies are readily seen on plain film radiographs, radiolucent bodies such as wood are visualized poorly, if at all. Although plain radiography is known to be ineffective for demonstrating radiolucent foreign bodies, it is often the first imaging modality used. In such cases, complete surgical extraction cannot be guaranteed, and other imaging modalities should be considered. We present a case of a retained toothpick of the second metatarsal in a young male patient who presented with pain in the right foot of a few weeks' duration. Plain radiography showed an oval cyst at the base of the second metatarsal of the right foot. Magnetic resonance imaging revealed a toothpick penetrating the second metatarsal. The patient recalled stepping on a toothpick 8 years previously. Surgical exploration revealed a 2-cm toothpick embedded inside the second metatarsal.
足部被认为是异物的第二大常见部位。最常见的异物包括针、金属、玻璃、木材和塑料。尽管金属异物在普通X线平片上很容易看到，但像木材这样的透射线异物即使能看到也很模糊。虽然已知普通X线摄影对于显示透射线异物无效，但它通常是首先使用的成像方式。在这种情况下，无法保证完全手术取出，应考虑其他成像方式。我们报告一例年轻男性患者，其右足第二跖骨内有一根残留牙签，该患者右足疼痛持续数周。普通X线摄影显示右足第二跖骨基部有一个椭圆形囊肿。磁共振成像显示一根牙签穿透了第二跖骨。患者回忆8年前曾踩到一根牙签。手术探查发现一根2厘米长的牙签嵌入第二跖骨内。
