[Closed reduction osteosynthesis of non-articular proximal fractures of the 1st metacarpal bone. Crossed ascending double pinning].

In non-articular fractures of the base of the base of the first metacarpal, this technique permits firm fixation, and immediate mobilization, with an excellent result. It consists of the insertion of two Kirschner wires, on either side, from the neck to the base of the first metacarpal, while reducing the fracture without opening. Two front and side view X-Rays control the correct reduction and position of the wires, which are cut under the skin closure. When making the two lateral incisions, it is very important to avoid injuring the two dorsal branches of the radial nerve. The Kirschner wires may be pulled out after six weeks. Work can be resumed in 8 weeks with usually near normal thumb mobility.