Small metal soft tissue foreign body extraction by using 3D CT guidance: A reliable method

Abstract

ObjectiveTo introduce a useful and accurate technique for the locating and removal of small metal foreign bodies in the soft tissues. MethodsEight patients presented with suspected small metal foreign bodies retained in the soft tissues of various body districts. Under local anesthesia, 3–6 pieces of 5ml syringe needles or 1ml syringe needles were induced through three different planes around the entry point of the foreign bodies. Using these finders, the small metal FBs were confirmed under 3D CT guidance. Based on the CT findings, the soft tissues were dissected along the path of the closest needle and the FBs were easily found and removed according to the relation with the closest needle finder. ResultsEight metal foreign bodies (3 slices, 3 nails, 1 fish hook, 1 needlepoint) were successfully removed under 3D CT guidance in all patients. The procedures took between 35min and 50min and the operation times took between 15min and 25min. No complications arose after the treatment. Conclusion3D CT-guided technique is a good alternative for the removal of small metal foreign body retained in the soft tissues as it is relatively accurate, reliable, quick, carries a low risk of complications and can be a first-choice procedure for the extraction of small metal foreign body.