This 28-year-old man was working at a construction site and tried to extract a stone from a working concrete mixer, as a result, the hand was tightened by the drum. Luckily, his partner had time to turn it off. A tourniquet was placed above the injury site and he was taken to the department of microsurgery, where he was operated. The surgeons performed an osteosynthesis (the reduction and internal fixation of a bone fracture with implantable devices that are made of metal) of the radial and ulna with knitting needles, with repair of the median nerve, the ulnar artery, the dorsal veins of the hand, and the extensor muscles of the fingers.